diff --git a/.env.example b/.env.example
index 12e03ea..0048c2a 100644
--- a/.env.example
+++ b/.env.example
@@ -26,7 +26,7 @@ PIANOBK_DIR=/home/locpham/daw_assets/pianobook
 
 # ── Runtime (tự phát hiện môi trường) ──
 # auto (mặc định): Windows/macOS → desktop; Linux không DISPLAY hoặc docker → headless.
-# desktop: server + client cùng 1 máy (bật nút "Mở trong Carla" nếu có Carla local)
+# desktop: server + client cùng 1 máy (native GUI VSTi mở được trên máy)
 # headless: server docker + browser UI (soundfont + VSTi mở được từ storage mount;
 #           preset chỉnh trên máy khác → upload .vstpreset qua web UI)
 SF_RUNTIME=auto
diff --git a/app/api/v1/plugins.py b/app/api/v1/plugins.py
index 92b27ec..fc9adbf 100644
--- a/app/api/v1/plugins.py
+++ b/app/api/v1/plugins.py
@@ -1,7 +1,7 @@
 import os, sys, uuid, json, tempfile, subprocess, time as _time, threading, asyncio, logging
 import numpy as np
 import soundfile as sf
-from fastapi import APIRouter, HTTPException, Depends, UploadFile, File, BackgroundTasks, Header, Query, WebSocket, WebSocketDisconnect
+from fastapi import APIRouter, HTTPException, Depends, UploadFile, File, BackgroundTasks, Query, WebSocket, WebSocketDisconnect
 from fastapi.responses import FileResponse
 from pydantic import BaseModel
 from typing import Optional, Any
@@ -609,13 +609,6 @@ class RenderRequest(BaseModel):
     output_filename: Optional[str] = "render_output.wav"
 
 
-class OpenInCarlaRequest(BaseModel):
-    """Mở native GUI của VSTi trong Carla (chỉ khả dụng khi runtime=desktop
-    và Carla được cài trên cùng máy — tự phát hiện qua runtime profile)."""
-    plugin_name: Optional[str] = None
-    plugin_path: Optional[str] = None
-
-
 class FxGuiRequest(BaseModel):
     """Mở native GUI của VST FX qua bridge (Windows desktop)."""
     path: str
@@ -649,170 +642,6 @@ class PreviewRequest(BaseModel):
     preset_data: Optional[str] = None  # base64 bytes .vstpreset (project nhúng)
 
 
-class CarlaMidiRequest(BaseModel):
-    """Gửi MIDI note từ track ARM → Carla (OSC /Carla/0/note_on|note_off).
-
-    Carla standalone bật OSC UDP mặc định cổng 22752 (source: CarlaEngineOsc,
-    CarlaEngineData oscPortUDP=22752; override: env CARLA_OSC_UDP_PORT của
-    Carla, hoặc SF_CARLA_OSC_PORT / osc_port trong carla_path.json của app).
-    Plugin đầu tiên trong project .carxs do app sinh có pluginId = 0."""
-    event: str  # "note_on" | "note_off"
-    note: int
-    velocity: Optional[int] = 100
-    channel: Optional[int] = 0
-
-
-@router.post("/carla-midi")
-async def carla_midi(req: CarlaMidiRequest):
-    """MIDI keyboard (piano roll / keybed) → Carla để preview VSTi realtime."""
-    if req.event not in ("note_on", "note_off"):
-        raise HTTPException(status_code=400, detail="event phải là note_on hoặc note_off")
-    ok = _send_carla_osc(req.event, req.note, req.velocity if req.event == "note_on" else 0, req.channel)
-    if not ok:
-        raise HTTPException(
-            status_code=502,
-            detail="Không gửi được OSC tới Carla — Carla đã mở chưa? (cổng OSC UDP mặc định 22752; "
-                   "nếu đổi cổng trong Carla, đặt SF_CARLA_OSC_PORT hoặc osc_port trong carla_path.json)",
-        )
-    return {"success": True, "event": req.event, "note": req.note, "channel": req.channel}
-
-
-def _carla_osc_port() -> int:
-    """Cổng OSC UDP của Carla: SF_CARLA_OSC_PORT env → osc_port trong
-    storage/carla_path.json → mặc định 22752 (CarlaEngineData)."""
-    try:
-        p = os.environ.get("SF_CARLA_OSC_PORT")
-        if p:
-            return int(p)
-    except Exception:
-        pass
-    try:
-        from app.core.runtime import _carla_config_path
-        with open(_carla_config_path(), "r", encoding="utf-8") as f:
-            data = json.load(f)
-        p = data.get("osc_port")
-        if p:
-            return int(p)
-    except Exception:
-        pass
-    return 22752
-
-
-def _carla_osc_ready() -> bool:
-    """Carla OSC engine đang lắng nghe cổng UDP chưa — thử bind socket vào đúng
-    cổng. Bind THÀNH CÔNG → cổng trống (Carla chưa mở / OSC chưa sẵn sàng);
-    EADDRINUSE → Carla đang giữ cổng (kể cả mở thủ công ngoài app, hoặc app
-    spawn đang boot tới giai đoạn OSC). KHÔNG set SO_REUSEADDR (Linux/Win cho
-    phép 2 UDP socket cùng port → mất tác dụng phát hiện)."""
-    try:
-        import socket
-        port = _carla_osc_port()
-        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-        s.bind(("127.0.0.1", port))
-        s.close()
-        return False
-    except OSError:
-        return True
-    except Exception:
-        return False
-
-
-def _send_carla_osc(event: str, note: int, velocity: int, channel: int) -> bool:
-    """Gửi OSC UDP tới `/Carla/0/{event}` (plugin đầu tiên = plugin auto-load).
-
-    OSC message: path + typetag + int args, mỗi phần pad '\0' tới bội số 4.
-    Đã xác minh từ source Carla: handleMsgNoteOn/NoteOff nhận `iii`/`ii` và
-    tên client mặc định của app standalone là "Carla" (carla_host.py
-    fClientName = CARLA_CLIENT_NAME or "Carla")."""
-    try:
-        import socket
-        import struct
-        port = _carla_osc_port()
-        path = f"/Carla/0/{event}".encode("utf-8")
-        typetag = b",iii" if event == "note_on" else b",ii"
-        vals = [int(channel), int(note), int(velocity)] if event == "note_on" else [int(channel), int(note)]
-
-        def _pad(b: bytes) -> bytes:
-            rem = len(b) % 4
-            return b + b"\x00" * (4 - rem) if rem else b
-
-        msg = _pad(path) + _pad(typetag) + b"".join(struct.pack(">i", v) for v in vals)
-        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-        s.settimeout(0.5)
-        s.sendto(msg, ("127.0.0.1", port))
-        s.close()
-        return True
-    except Exception:
-        return False
-
-
-@router.post("/open-in-carla")
-async def open_in_carla(req: OpenInCarlaRequest, current_user: dict = Depends(get_current_user)):
-    """Mở Carla với VSTi đã chọn — TỰ ĐỘNG load plugin (native GUI + keyboard).
-
-    Cơ chế: sinh file project .carxs (định dạng XML chính thức của Carla —
-    `carla.exe [FILE]` nhận project file) chứa node <Plugin><Info><Type>VST3
-    </Type><Binary>...</Binary></Info> → Carla mở lên là plugin đã load sẵn,
-    kèm on-screen MIDI keyboard (PixmapKeyboard) để preview realtime.
-
-    Carla là app ngoài do user tự giải nén (GPL-2.0+ → không bundle/nhúng);
-    app chỉ spawn tiến trình + trao đổi file preset."""
-    enforce_password_changed(current_user)
-    from app.core.runtime import find_carla
-    carla = find_carla()
-    if not carla:
-        raise HTTPException(
-            status_code=409,
-            detail="Không tìm thấy Carla trên máy này. Hãy giải nén bản Carla "
-                   "portable (zip, miễn phí) từ https://github.com/falkTX/Carla/releases, "
-                   "rồi vào Plugin Manager → Carla Bridge → Định vị Carla... để chọn "
-                   "thư mục chứa carla.exe (bản portable không dùng PATH).",
-        )
-    plugin_path = req.plugin_path or ""
-    if not plugin_path and req.plugin_name:
-        try:
-            pm = PluginManager()
-            plugins = pm._scan_plugins()
-            if req.plugin_name in plugins:
-                plugin_path = plugins[req.plugin_name]
-        except Exception:
-            plugin_path = ""
-    carxs_path = ""
-    if plugin_path:
-        carxs_path = _write_carla_project(req.plugin_name or os.path.basename(plugin_path), plugin_path)
-    # ⚠️ FIX (Bug 2): Carla ĐÃ chạy (mở thủ công / app spawn từ trước, hoặc
-    # đang boot) → KHÔNG spawn bản 2 (trùng OSC port 22752 + audio → bridge
-    # hỏng; Carla là single-instance). Trả already_running — frontend poll
-    # carla-status chờ OSC ready rồi mới gửi note.
-    if _carla_osc_ready() or len(_CARLA_PROCESSES) > 0:
-        return {
-            "success": True,
-            "started": False,
-            "already_running": True,
-            "carla_path": carla,
-            "plugin_path": plugin_path,
-            "project_file": carxs_path,
-            "cmd": [],
-        }
-    cmd = [carla]
-    if carxs_path:
-        cmd.append(carxs_path)
-    try:
-        cwd = os.path.dirname(carla) or None
-        proc = subprocess.Popen(cmd, cwd=cwd, close_fds=os.name != "nt",
-                                creationflags=subprocess.CREATE_NO_WINDOW if os.name == "nt" else 0)
-        _register_carla_process(proc)
-        return {
-            "success": True,
-            "started": True,
-            "carla_path": carla,
-            "plugin_path": plugin_path,
-            "project_file": carxs_path,
-            "cmd": cmd,
-        }
-    except Exception as e:
-        raise HTTPException(status_code=500, detail=f"Không mở được Carla: {e}")
-
 @router.post("/fx-gui")
 async def open_fx_gui(req: FxGuiRequest, current_user: dict = Depends(get_current_user)):
     """Mở native GUI của VST FX (mastering chain / FX rack) qua bridge.
@@ -941,199 +770,6 @@ def _prune_fx_gui_processes():
 
 
 
-# ── Carla bridge lifecycle ─────────────────────────────────────────────────
-# App spawn Carla (open_in_carla) và PHẢI có khả năng dừng nó khi track chuyển
-# sang instrument KHÔNG phải VST (soundfont/GM) — nếu không, Carla vẫn chạy và
-# MIDI vẫn vào VSTi cũ → âm sai instrument + âm kẹt không dừng được.
-_CARLA_PROCESSES = []  # list[subprocess.Popen]
-
-
-def _register_carla_process(proc):
-    """Lưu handle tiến trình Carla do app spawn (để carla-stop terminate được)."""
-    global _CARLA_PROCESSES
-    _prune_carla_processes()
-    _CARLA_PROCESSES.append(proc)
-
-
-def _prune_carla_processes():
-    """Bỏ các handle đã thoát (poll() trả code) — tránh list rác."""
-    global _CARLA_PROCESSES
-    _CARLA_PROCESSES = [p for p in _CARLA_PROCESSES if p is not None and p.poll() is None]
-
-
-def _send_carla_all_notes_off() -> bool:
-    """Gửi note_off TẤT CẢ pitch (0-127) trên mọi channel (0-15) tới Carla.
-
-    Dừng mọi âm đang ngân trong Carla (kể cả sustain) — dùng ngay trước khi
-    terminate để không còn tiếng kẹt khi bridge bị unload."""
-    ok = False
-    try:
-        for ch in range(16):
-            for note in range(128):
-                if _send_carla_osc("note_off", note, 0, ch):
-                    ok = True
-    except Exception:
-        pass
-    return ok
-
-
-@router.get("/carla-status")
-async def carla_status():
-    """Kiểm tra Carla bridge còn sống không (OSC engine đang nghe cổng UDP —
-    phát hiện CẢ Carla mở thủ công ngoài app, không chỉ app-spawn; chính xác
-    hơn _CARLA_PROCESSES vì OSC bind khi Carla boot xong engine).
-
-    Frontend dùng để quyết định: route MIDI item EXCLUSIVE qua Carla (chỉ khi
-    Carla đang chạy) hay fallback FluidSynth (luôn có âm) — tránh câm toàn
-    phần khi Carla bị đóng. running=OSC ready → gửi note là tới được Carla."""
-    _prune_carla_processes()
-    return {
-        "success": True,
-        "running": _carla_osc_ready(),
-        "app_spawned": len(_CARLA_PROCESSES) > 0,
-        "osc_port": _carla_osc_port(),
-    }
-
-
-@router.post("/carla-stop")
-async def carla_stop(authorization: Optional[str] = Header(None)):
-    """Unload Carla bridge: tắt mọi note đang ngân + terminate tiến trình Carla
-    do app spawn. Gọi khi track chuyển từ VSTi sang instrument khác (soundfont)
-    để âm KHÔNG còn play qua Carla bridge."""
-    # Auth là optional (desktop app có thể chưa login) — chỉ cần decode nếu có
-    try:
-        if authorization and authorization.startswith("Bearer "):
-            from app.core.auth import decode_token
-            decode_token(authorization.split(" ")[1])
-    except Exception:
-        pass
-    # 1. Tắt hết âm đang ngân trong Carla (trước khi giết tiến trình)
-    try:
-        _send_carla_all_notes_off()
-    except Exception:
-        pass
-    # 2. Terminate tiến trình Carla đã spawn
-    killed = 0
-    _prune_carla_processes()
-    for proc in list(_CARLA_PROCESSES):
-        try:
-            proc.terminate()
-        except Exception:
-            pass
-    # Chờ tiến trình thoát (tối đa ~2s) rồi kill mạnh nếu còn sống
-    try:
-        import time as _t
-        deadline = _t.time() + 2.0
-        for proc in list(_CARLA_PROCESSES):
-            while proc.poll() is None and _t.time() < deadline:
-                _t.sleep(0.05)
-            if proc.poll() is None:
-                try:
-                    proc.kill()
-                except Exception:
-                    pass
-            if proc.poll() is not None:
-                killed += 1
-    except Exception:
-        pass
-    _CARLA_PROCESSES.clear()
-    return {
-        "success": True,
-        "stopped": True,
-        "killed": killed,
-        "all_notes_off": True,
-    }
-
-
-
-def _write_carla_project(plugin_name: str, plugin_path: str) -> str:
-    """Sinh file project .carxs cho Carla load sẵn VSTi (chỉ VST3 — VST2 cần
-    uniqueID không đoán được → mở Carla trống để user tự Add Plugin).
-
-    Định dạng theo source Carla (CarlaEngine::saveProjectInternal +
-    CarlaStateSave::dumpToMemoryStream): root <CARLA-PROJECT VERSION='2.5'>,
-    <Plugin><Info><Type>VST3</Type><Binary>path</Binary><Label>..</Label>
-    </Info><Data><Active>Yes</Active><ControlChannel>1</ControlChannel>
-    <Options>0x0</Options></Data></Plugin>."""
-    if not plugin_path or not os.path.exists(plugin_path):
-        return ""
-    low = plugin_path.lower()
-    is_vst3 = low.endswith(".vst3") or low.endswith(".vst3/") or "\\" in plugin_path and plugin_path.rstrip("\\/").lower().endswith(".vst3")
-    if not is_vst3:
-        # VST2 (.dll/.so ngoài .vst3): không auto-load được tin cậy → Carla trống
-        return ""
-    from xml.sax.saxutils import escape
-    name = escape(plugin_name or os.path.splitext(os.path.basename(plugin_path))[0])
-    binary = escape(plugin_path)
-    # Patchbay: kết nối TỰ ĐỘNG MIDI input + audio output → default speaker.
-    # Mặc định Carla KHÔNG connect khi load project (chỉ restore connection có
-    # trong file) → lần đầu mở không có âm, không nhận MIDI (phải unload/load
-    # lại mới auto-connect như thêm plugin thủ công). Connection nào trỏ tới
-    # port không tồn tại sẽ bị Carla bỏ qua im lặng → thêm nhiều biến thể tên.
-    pb_name = name
-    patchbay = (
-        " <Patchbay>\n"
-        # Audio out plugin → loa mặc định (system:playback_1/2)
-        f"  <Connection><Source>{pb_name}:audio_out1</Source><Target>system:playback_1</Target></Connection>\n"
-        f"  <Connection><Source>{pb_name}:audio_out2</Source><Target>system:playback_2</Target></Connection>\n"
-        # MIDI input → plugin midi_in (biến thể tên client: Carla / carla / system)
-        f"  <Connection><Source>Carla:midi_in</Source><Target>{pb_name}:midi_in</Target></Connection>\n"
-        f"  <Connection><Source>carla:midi_in</Source><Target>{pb_name}:midi_in</Target></Connection>\n"
-        f"  <Connection><Source>system:midi_capture_1</Source><Target>{pb_name}:midi_in</Target></Connection>\n"
-        " </Patchbay>\n"
-    )
-    xml = (
-        "<?xml version='1.0' encoding='UTF-8'?>\n"
-        "<!DOCTYPE CARLA-PROJECT>\n"
-        f"<CARLA-PROJECT VERSION='2.5'>\n"
-        " <EngineSettings>\n"
-        "  <ForceStereo>false</ForceStereo>\n"
-        "  <PreferPluginBridges>false</PreferPluginBridges>\n"
-        "  <PreferUiBridges>false</PreferUiBridges>\n"
-        "  <UIsAlwaysOnTop>false</UIsAlwaysOnTop>\n"
-        "  <MaxParameters>100</MaxParameters>\n"
-        "  <UIBridgesTimeout>10000</UIBridgesTimeout>\n"
-        " </EngineSettings>\n"
-        " <Plugin>\n"
-        "  <Info>\n"
-        f"   <Type>VST3</Type>\n"
-        f"   <Name>{name}</Name>\n"
-        f"   <Binary>{binary}</Binary>\n"
-        f"   <Label>{name}</Label>\n"
-        "  </Info>\n"
-        "  <Data>\n"
-        "   <Active>Yes</Active>\n"
-        "   <ControlChannel>1</ControlChannel>\n"
-        "   <Options>0x0</Options>\n"
-        "  </Data>\n"
-        " </Plugin>\n"
-        + patchbay +
-        "</CARLA-PROJECT>\n"
-    )
-    try:
-        proj_dir = os.path.join(settings.STORAGE_DIR, "carla_projects")
-        os.makedirs(proj_dir, exist_ok=True)
-        # Dọn project cũ (quá 1 ngày) — tránh rác
-        try:
-            now = _time.time()
-            for f in os.listdir(proj_dir):
-                fp = os.path.join(proj_dir, f)
-                try:
-                    if os.path.isfile(fp) and now - os.path.getmtime(fp) > 86400:
-                        os.remove(fp)
-                except Exception:
-                    pass
-        except Exception:
-            pass
-        safe = "".join(c for c in plugin_name if c.isalnum() or c in " _-")[:40].strip() or "plugin"
-        carxs = os.path.join(proj_dir, f"{safe}_{uuid.uuid4().hex[:8]}.carxs")
-        with open(carxs, "w", encoding="utf-8") as fh:
-            fh.write(xml)
-        return carxs
-    except Exception:
-        return ""
-
-
 @router.post("/preview")
 async def preview_instrument(req: PreviewRequest):
     """Quick-render preview VSTi (âm thật, cùng code path với export)."""
@@ -1171,8 +807,8 @@ class MidiRenderRequest(BaseModel):
     """Render MIDI notes → audio qua VSTi (âm thật, cùng code path với export).
 
     instrument_id = plugin_id của track synth_engine (khớp key scan của
-    PluginManager). Đây là cầu nối Carla → pedalboard: preset chỉnh trong
-    Carla (.vstpreset) được áp vào pedalboard trước khi render."""
+    PluginManager). Đây là cầu nối preset → pedalboard: preset chỉnh trong
+    native GUI (.vstpreset) được áp vào pedalboard trước khi render."""
     instrument_id: str
     notes: list = []
     bpm: float = 120.0
@@ -1187,7 +823,7 @@ async def midi_render(req: MidiRenderRequest, current_user: dict = Depends(get_c
     """Export MIDI notes → WAV với âm của VSTi instrument (lưu vào processed).
 
     Preview/export MIDI notes với âm VSTi trước đây KHÔNG thực hiện được:
-    - preview realtime chỉ phát qua loa Carla (không vào audio graph DAW)
+    - preview realtime chỉ phát qua loa hệ thống (không vào audio graph DAW)
     - clientSideExport chỉ render soundfont (midiCache = FluidSynth WASM)
     - /plugins/preview có sẵn nhưng frontend không gọi
     Endpoint này render offline bằng pedalboard (đúng plugin + preset như
@@ -1233,9 +869,9 @@ async def midi_render(req: MidiRenderRequest, current_user: dict = Depends(get_c
         raise HTTPException(
             status_code=500,
             detail=f"Render MIDI thất bại: {e}. Nếu plugin VSTi không load được "
-                   "qua native_bridge, hãy mở Carla Bridge (chọn VSTi, chỉnh âm, "
-                   "Save preset .vstpreset) rồi Upload preset vào track — render "
-                   "sẽ dùng đúng âm đã chỉnh.",
+                   "qua native_bridge, hãy chỉnh âm trong native GUI (Save preset "
+                   ".vstpreset) rồi Upload preset vào track — render sẽ dùng "
+                   "đúng âm đã chỉnh.",
         )
 
 
@@ -1517,72 +1153,6 @@ async def soundfont_render(req: SoundfontRenderRequest, current_user: dict = Dep
         raise HTTPException(status_code=500, detail=f"Render soundfont thất bại: {e}")
 
 
-class CarlaPlayNotesRequest(BaseModel):
-    """Phát dãy MIDI notes qua Carla bridge (OSC, realtime) — preview khi
-    pedalboard không render được plugin (VD VST2). Cần Carla đang chạy với
-    plugin đã load (open-in-carla)."""
-    notes: list = []
-    bpm: float = 120.0
-    channel: Optional[int] = 0
-
-
-@router.post("/carla-play-notes")
-async def carla_play_notes(req: CarlaPlayNotesRequest, current_user: dict = Depends(get_current_user)):
-    """Phát toàn bộ dãy MIDI notes vào Carla (note_on/note_off đúng thời điểm).
-
-    Preview realtime qua đúng VSTi đang mở trong Carla — dùng khi pedalboard
-    không load được plugin (VST2, plugin cần state GUI). Âm phát ra loa hệ
-    thống (Carla), KHÔNG thu vào file — muốn file audio dùng /midi-render."""
-    enforce_password_changed(current_user)
-    if not req.notes:
-        raise HTTPException(status_code=400, detail="Chưa có nốt nhạc để phát")
-    if not find_carla_local():
-        raise HTTPException(status_code=409, detail="Carla chưa được định vị (Plugin Manager → Carla Bridge → Định vị Carla...)")
-    if not _carla_bridge_running():
-        raise HTTPException(status_code=409, detail="Carla chưa mở. Hãy mở Carla Bridge (nút Synth → VSTi) trước khi preview qua Carla.")
-    beat_sec = 60.0 / max(30.0, req.bpm)
-    channel = int(req.channel or 0)
-    events = []
-    for n in req.notes:
-        pitch = int(n.get("pitch", 60))
-        vel = int(float(n.get("velocity", 0.8)) * 127)
-        start = float(n.get("start_beat", 0)) * beat_sec
-        dur = float(n.get("duration_beats", 1)) * beat_sec
-        events.append((start, "note_on", pitch, max(1, min(127, vel))))
-        events.append((start + dur, "note_off", pitch, 0))
-    events.sort(key=lambda e: (e[0], 0 if e[1] == "note_off" else 1))
-    duration_sec = max((e[0] for e in events), default=0) + 0.3
-    # Phát trong thread nền — endpoint trả ngay, không block tới hết bản nhạc
-    def _player():
-        import time as _t
-        t0 = _t.monotonic()
-        for ev_time, ev_type, pitch, vel in events:
-            wait = (t0 + ev_time) - _t.monotonic()
-            if wait > 0:
-                _t.sleep(wait)
-            _send_carla_osc(ev_type, pitch, vel, channel)
-    threading.Thread(target=_player, daemon=True).start()
-    return {"success": True, "mode": "carla_realtime", "duration_sec": round(duration_sec, 3), "events": len(events)}
-
-
-def find_carla_local() -> str:
-    from app.core.runtime import find_carla as _fc
-    try:
-        return _fc() or ""
-    except Exception:
-        return ""
-
-
-def _carla_bridge_running() -> bool:
-    try:
-        _prune_carla_processes()
-        # OSC ready (mở thủ công / app spawn đã boot) HOẶC tiến trình app-spawn
-        # còn sống (đang boot) — preview chấp nhận gửi sớm một chút.
-        return _carla_osc_ready() or len(_CARLA_PROCESSES) > 0
-    except Exception:
-        return False
-
-
 @router.post("/render")
 def render_project(
     req: RenderRequest,
diff --git a/app/api/v1/presets.py b/app/api/v1/presets.py
index 486922c..d054075 100644
--- a/app/api/v1/presets.py
+++ b/app/api/v1/presets.py
@@ -1,8 +1,8 @@
 # SonicForge Preset Library API — thư viện preset VST3 (.vstpreset) nằm trong
 # storage/presets (mount qua volume trong docker; thư mục storage trên Windows).
 #
-# Vai trò: cầu nối Carla → pedalboard. User chỉnh preset trong Carla (native
-# GUI) → xuất .vstpreset → upload vào thư viện → gán vào track (preset_id trong
+# Vai trò: cầu nối preset → pedalboard. User chỉnh preset trong native GUI
+# của VSTi → xuất .vstpreset → upload vào thư viện → gán vào track (preset_id trong
 # synth_engine) → render_engine tải qua load_preset → âm render = âm đã chỉnh.
 import os
 import uuid
diff --git a/app/api/v1/system.py b/app/api/v1/system.py
index d3fcc32..265b7e2 100644
--- a/app/api/v1/system.py
+++ b/app/api/v1/system.py
@@ -1,10 +1,7 @@
 # SonicForge System API — capabilities: frontend gọi 1 lần lúc boot để biết
 # môi trường (desktop Windows / docker headless) và bật/tắt tính năng tương ứng.
-from fastapi import APIRouter, HTTPException, Depends
-from pydantic import BaseModel
-from typing import Optional
-from app.core.runtime import capabilities, save_carla_path
-from app.api.v1.auth import get_current_user, enforce_password_changed
+from fastapi import APIRouter
+from app.core.runtime import capabilities
 
 router = APIRouter()
 
@@ -15,37 +12,8 @@ async def get_capabilities():
 
     - runtime: "desktop" (server + client cùng 1 máy Windows/macOS) |
                "headless" (docker server + browser UI)
-    - features.carla_local: có Carla trên máy này → hiện nút "Mở trong Carla"
     - features.preset_upload: luôn True (upload .vstpreset qua web UI)
     - features.preview_mode: "quick_render" (pedalboard render clip ngắn —
       âm thật giống export) | "wasm" (Preview Synth trong browser)
     """
     return capabilities()
-
-
-class CarlaPathRequest(BaseModel):
-    """Định vị Carla (bản portable zip không cài đặt/PATH). Chấp nhận đường
-    dẫn tới carla.exe HOẶC thư mục chứa carla.exe — resolve và lưu config."""
-    carla_path: str
-    carla_dir: Optional[str] = None  # tương thích ngược: tên cũ của carla_path
-
-
-@router.post("/carla-path")
-async def set_carla_path(req: CarlaPathRequest, current_user: dict = Depends(get_current_user)):
-    """Lưu vị trí carla.exe do user chọn (Plugin Manager → Định vị Carla...).
-
-    Cần thiết vì bản Carla Windows là bộ file zip portable — không có installer
-    cũng không dùng biến môi trường PATH, nên heuristic không tìm thấy."""
-    enforce_password_changed(current_user)
-    target = (req.carla_path or req.carla_dir or "").strip()
-    if not target:
-        raise HTTPException(status_code=400, detail="Thiếu đường dẫn Carla")
-    exe = save_carla_path(target)
-    if not exe:
-        raise HTTPException(
-            status_code=400,
-            detail="Không tìm thấy carla.exe trong đường dẫn đã chọn. Hãy chọn "
-                   "thư mục chứa carla.exe (bản portable giải nén) hoặc chính file carla.exe.",
-        )
-    return {"success": True, "carla_path": exe, **capabilities()}
-
diff --git a/app/config.py b/app/config.py
index adf0836..2cf109a 100644
--- a/app/config.py
+++ b/app/config.py
@@ -62,7 +62,7 @@ class Settings:
     VST_DIR: str = os.getenv("VST_DIR", _default_vst_dir())
     SOUNDFONT_DIR: str = os.getenv("SOUNDFONT_DIR", _default_soundfont_dir())
 
-    # Thư viện preset VST3 (.vstpreset) — cầu nối Carla → pedalboard.
+    # Thư viện preset VST3 (.vstpreset) — cầu nối preset → pedalboard.
     # Nằm trong storage nên tự động nằm trong volume mount (docker) / thư mục
     # storage (Windows desktop).
     PRESET_DIR: str = os.path.join(STORAGE_DIR, "presets")
diff --git a/app/core/render_engine.py b/app/core/render_engine.py
index fcf7153..a079d4b 100644
--- a/app/core/render_engine.py
+++ b/app/core/render_engine.py
@@ -227,7 +227,7 @@ def _apply_rebalance(buf, params, sr):
 
 def _apply_builtin_fx_chain(buf, chain, sr):
     """Serial pipeline qua các builtin custom FX slots (spec §2 Step 2: Slot 1..n
-    in-place). Slot inactive/bypass → bỏ qua. vst3/carla slots = xử lý ngoài
+    in-place). Slot inactive/bypass → bỏ qua. vst3 slots = xử lý ngoài
     (bridge) → không thêm DSP ở đây."""
     for slot in chain or []:
         if isinstance(slot, str):
diff --git a/app/core/runtime.py b/app/core/runtime.py
index 29ef489..5397b78 100644
--- a/app/core/runtime.py
+++ b/app/core/runtime.py
@@ -1,7 +1,6 @@
 # SonicForge Runtime Profile — phát hiện môi trường chạy (desktop Windows /
 # docker headless) và khả năng của máy, để app TỰ CHỌN cách xử lý:
-#   - Windows desktop (server + client cùng 1 máy): Carla local để preview +
-#     chỉnh preset → native_bridge render (Hướng A)
+#   - Windows desktop (server + client cùng 1 máy): native_bridge render VSTi
 #   - Docker / Linux headless (server + browser UI): soundfont + VSTi mở được
 #     từ storage mount; preset upload qua browser; không có GUI local.
 #
@@ -10,8 +9,6 @@
 # nhẹ và hoạt động trong mọi tiến trình (web/worker/celery).
 import os
 import sys
-import json
-import shutil
 import socket
 import functools
 
@@ -19,10 +16,6 @@ from app.config import settings
 
 SF_RUNTIME_ENV = "SF_RUNTIME"  # auto | desktop | headless
 SF_DOCKER_ENV = "SF_DOCKER"    # 1 = chạy trong container Docker
-CARLA_CONFIG_FILE = "carla_path.json"  # storage/carla_path.json — user định vị
-# Bản Carla portable (zip) có thể giải nén ở BẤT KỲ ĐÂU — PATH/Program Files
-# không đủ. User tự chọn thư mục chứa carla.exe qua Plugin Manager → lưu file
-# này (ưu tiên cao nhất khi detect), kèm tìm kiếm nông Downloads/Desktop.
 
 
 def _is_windows() -> bool:
@@ -67,219 +60,6 @@ def _tauri_bridge_ready() -> bool:
         return False
 
 
-def _carla_config_path() -> str:
-    return os.path.join(settings.STORAGE_DIR, CARLA_CONFIG_FILE)
-
-
-def get_configured_carla() -> str:
-    """Đường dẫn carla.exe do USER tự định vị (lưu trong storage/carla_path.json).
-
-    File lưu đường dẫn tới carla.exe (đã resolve) hoặc thư mục chứa — nếu là
-    thư mục, tìm carla.exe bên trong (độ sâu ≤ 2). Đây là cách bắt buộc có cho
-    bản Carla portable (zip) giải nén ở vị trí bất kỳ, không cài đặt/PATH."""
-    try:
-        with open(_carla_config_path(), "r", encoding="utf-8") as f:
-            data = json.load(f)
-    except Exception:
-        return ""
-    p = (data.get("carla_path") or "").strip()
-    if not p:
-        return ""
-    if os.path.isfile(p) and os.path.basename(p).lower() in ("carla.exe", "carla-single.exe", "carla"):
-        return p
-    if os.path.isdir(p):
-        try:
-            for root, dirs, files in os.walk(p):
-                depth = root[len(p):].count(os.sep)
-                if depth >= 2:
-                    dirs[:] = []
-                    continue
-                for f in files:
-                    if f.lower() == "carla.exe":
-                        return os.path.join(root, f)
-        except Exception:
-            pass
-    return ""
-
-
-def save_carla_path(path: str) -> str:
-    """Lưu vị trí Carla do user chọn (Plugin Manager → Định vị Carla...).
-
-    Chấp nhận: đường dẫn tới carla.exe, hoặc thư mục chứa carla.exe (portable
-    zip). Resolve về đường dẫn exe hợp lệ → ghi config → xóa cache detect.
-    Trả đường dẫn exe, hoặc '' nếu không hợp lệ."""
-    path = (path or "").strip().strip('"').strip()
-    exe = ""
-    if os.path.isfile(path) and os.path.basename(path).lower() in ("carla.exe", "carla-single.exe", "carla"):
-        exe = path
-    elif os.path.isdir(path):
-        try:
-            for root, dirs, files in os.walk(path):
-                depth = root[len(path):].count(os.sep)
-                if depth >= 2:
-                    dirs[:] = []
-                    continue
-                for f in files:
-                    if f.lower() == "carla.exe":
-                        exe = os.path.join(root, f)
-                        break
-                if exe:
-                    break
-        except Exception:
-            pass
-    if not exe:
-        return ""
-    try:
-        os.makedirs(settings.STORAGE_DIR, exist_ok=True)
-        with open(_carla_config_path(), "w", encoding="utf-8") as f:
-            json.dump({"carla_path": exe, "carla_exe": os.path.basename(exe)}, f, ensure_ascii=False, indent=2)
-    except Exception:
-        return ""
-    # Xóa cache detect/find_carla để capabilities phản ánh ngay
-    invalidate_carla_cache()
-    return exe
-
-
-def _carla_from_registry() -> str:
-    """Windows: Carla cài qua installer có thể ghi registry (best-effort)."""
-    if not _is_windows():
-        return ""
-    try:
-        import winreg
-        for hive, key in (
-            (winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\Carla"),
-            (winreg.HKEY_CURRENT_USER, r"SOFTWARE\Carla"),
-            (winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\WOW6432Node\Carla"),
-        ):
-            try:
-                with winreg.OpenKey(hive, key) as k:
-                    val, _ = winreg.QueryValueEx(k, "InstallPath")
-                    p = os.path.join(str(val), "carla.exe")
-                    if os.path.isfile(p):
-                        return p
-            except Exception:
-                continue
-    except Exception:
-        pass
-    return ""
-
-
-def _find_carla_exe_bounded(base: str, max_depth: int = 3) -> str:
-    """Quét nông tìm carla.exe (bản portable giải nén thường nằm Downloads/
-    Desktop/Documents). Giới hạn độ sâu + bỏ qua thư mục lớn — KHÔNG quét
-    toàn ổ đĩa."""
-    if not base or not os.path.isdir(base):
-        return ""
-    skip = ("node_modules", ".cache", "AppData", ".git", "venv", ".venv",
-            "__pycache__", "$RECYCLE.BIN", "Windows", "Program Files",
-            "Program Files (x86)")
-    try:
-        for root, dirs, files in os.walk(base):
-            depth = root[len(base):].count(os.sep) if root != base else 0
-            if depth >= max_depth:
-                dirs[:] = []
-                continue
-            for f in files:
-                if f.lower() == "carla.exe":
-                    return os.path.join(root, f)
-            dirs[:] = [d for d in dirs if d not in skip and not d.startswith(".")]
-    except Exception:
-        pass
-    return ""
-
-
-def _carla_from_shallow_search() -> str:
-    """Windows: tìm carla.exe trong Downloads/Desktop/Documents/Home."""
-    if not _is_windows():
-        return ""
-    home = os.environ.get("USERPROFILE") or os.path.expanduser("~")
-    bases = []
-    for sub in ("Downloads", "Desktop", "Documents"):
-        bases.append(os.path.join(home, sub))
-    bases.append(home)
-    for base in bases:
-        hit = _find_carla_exe_bounded(base)
-        if hit:
-            return hit
-    return ""
-
-
-def _carla_candidates() -> list:
-    """Các vị trí Carla — theo thứ tự ưu tiên:
-    1) user định vị (config file — bản portable bắt buộc dùng cách này)
-    2) PATH (shutil.which)
-    3) registry (Windows, nếu cài qua installer)
-    4) thư mục cài đặt chuẩn (Program Files...)
-    5) quét nông Downloads/Desktop/Documents (Windows) / AppImage (Linux)"""
-    cands = []
-    configured = get_configured_carla()
-    if configured:
-        cands.append(configured)
-    try:
-        which = shutil.which("carla")
-        if which:
-            cands.append(which)
-    except Exception:
-        pass
-    reg = _carla_from_registry()
-    if reg:
-        cands.append(reg)
-    try:
-        if _is_windows():
-            pf = os.environ.get("ProgramFiles", r"C:\Program Files")
-            lpf = os.environ.get("ProgramFiles(x86)", r"C:\Program Files (x86)")
-            la = os.environ.get("LOCALAPPDATA", "")
-            for base in (pf, lpf, la):
-                for rel in ("Carla\\carla.exe", "Carla\\bin\\carla.exe", "Programs\\Carla\\carla.exe"):
-                    p = os.path.join(base, rel) if base else ""
-                    if p and os.path.isfile(p):
-                        cands.append(p)
-        elif _is_linux():
-            home = os.path.expanduser("~")
-            for p in ("/usr/bin/carla", "/usr/local/bin/carla", "/opt/carla/carla"):
-                if os.path.isfile(p):
-                    cands.append(p)
-            try:
-                for f in os.listdir(home):
-                    if f.lower().startswith("carla") and f.lower().endswith(".appimage"):
-                        cands.append(os.path.join(home, f))
-            except Exception:
-                pass
-        elif _is_macos():
-            for p in ("/Applications/Carla.app/Contents/MacOS/Carla", "/Applications/Carla.app/Contents/MacOS/carla"):
-                if os.path.isfile(p):
-                    cands.append(p)
-    except Exception:
-        pass
-    shallow = _carla_from_shallow_search()
-    if shallow:
-        cands.append(shallow)
-    # Dedup giữ thứ tự
-    seen, out = set(), []
-    for c in cands:
-        if c not in seen:
-            seen.add(c)
-            out.append(c)
-    return out
-
-
-@functools.lru_cache(maxsize=1)
-def find_carla() -> str:
-    """Đường dẫn Carla đầu tiên tìm thấy, hoặc '' nếu chưa có.
-
-    Lưu ý license: Carla GPL-2.0+ — app KHÔNG bundle/nhúng, chỉ spawn tiến
-    trình ngoài (user tự cài/giải nén) → không dính copyleft."""
-    for c in _carla_candidates():
-        return c
-    return ""
-
-
-def invalidate_carla_cache():
-    """Xóa cache detect/find_carla — gọi sau khi user định vị Carla mới."""
-    find_carla.cache_clear()
-    detect.cache_clear()
-
-
 def _detect_platform() -> str:
     if _is_windows():
         return "windows"
@@ -355,7 +135,6 @@ def detect() -> dict:
     """Detect 1 lần (cache toàn cục) — kết quả bất biến trong 1 tiến trình."""
     platform = _detect_platform()
     runtime = _detect_runtime()
-    carla = find_carla() if runtime == "desktop" else ""
     docker = _in_docker()
     return {
         "platform": platform,
@@ -364,8 +143,6 @@ def detect() -> dict:
         "environment": "docker" if docker else "standalone",  # luồng âm instrument: docker→FluidSynthWASM, standalone→native OS
         "has_display": _has_display(),
         "tauri_bridge": _tauri_bridge_ready(),
-        "carla_path": carla,
-        "carla_local": bool(carla),         # chỉ có ý nghĩa khi runtime=desktop
         "vst_render": _vst_render_available(),
         "default_vst_dirs": default_vst_dirs(),
         "default_soundfont_dirs": default_soundfont_dirs(),
@@ -411,8 +188,6 @@ def capabilities() -> dict:
     """Capabilities API — frontend gọi 1 lần lúc boot để bật/tắt tính năng."""
     d = detect()
     features = {
-        "carla_local": d["carla_local"],
-        "carla_path": d["carla_path"],
         "preset_upload": True,              # cả 2 mode đều upload preset được
         "vst_render": d["vst_render"],
         "tauri_bridge": d["tauri_bridge"],
diff --git a/app/core/vst_engine.py b/app/core/vst_engine.py
index 8847589..992406e 100644
--- a/app/core/vst_engine.py
+++ b/app/core/vst_engine.py
@@ -673,9 +673,9 @@ class DecentSamplerManager:
         )
 
 
-# ── Preset bridge (Carla ↔ pedalboard) ─────────────────────────────────────
-# Carla (chạy ngoài, user tự cài — GPL-2.0+ nên app KHÔNG bundle/nhúng) dùng
-# để mở native GUI VSTi + xuất file preset (.vstpreset từ nút Save của plugin).
+# ── Preset bridge (native GUI ↔ pedalboard) ───────────────────────────────
+# User chỉnh preset trong native GUI của VSTi (bridge mở cửa sổ plugin) rồi
+# xuất file preset (.vstpreset từ nút Save của plugin).
 # File preset nằm trong thư viện storage/presets (upload qua web UI hoặc picker
 # local trên Windows) → render_engine tải qua apply_preset_to_plugin() khi render.
 PRESET_EXTENSIONS = (".vstpreset", ".fxp", ".fxb", ".dspreset")
diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx
index cd2e885..7cba824 100644
--- a/app/static/js/app.jsx
+++ b/app/static/js/app.jsx
@@ -108,11 +108,7 @@ const ensureSonicInstrument = (ctx) => {
   }
 };
 
-// ── Carla bridge MIDI scheduling helper ────────────────────────────────────
-// Schedule note_on/note_off tới Carla (OSC qua backend) cho MIDI items khi
-// track dùng VSTi + có Carla local. Dùng chung cho mọi đường playback
-// (main timeline, local loop, piano roll, ghost notes) để MIDI item PHẢI play
-// qua Carla bridge khi VSTi được loaded.
+// ── MIDI note-off scheduling helper (pending map chống note chồng) ─────────
 // FIX (Bug 2): NOTE_OFF trễ (dur+30ms) của note cùng pitch bắn SAU note-on kế
 // tiếp (bar liền nhau cùng hợp âm, piano roll note chồng) -> cắt note mới →
 // câm. Map pending theo key channel:pitch — schedule NOTE_OFF mới cùng key →
@@ -147,65 +143,10 @@ const clearAllPendingNoteOffs = () => {
     delete pendingNoteOffMap[k];
   });
 };
-const fireCarlaNote = (ch, pitch, vel, delay, durMs) => {
-  setTimeout(function () { window.SonicCarlaMidi.noteOn(ch, pitch, vel); }, delay);
-  scheduleNoteOff('C:' + ch + ':' + pitch, function () { window.SonicCarlaMidi.noteOff(ch, pitch); }, delay, durMs);
-};
-// ⚠️ FIX (Bug 2): Carla mở ASYNC lúc play (ensureCarlaForPlayback) — nốt gửi
-// trước khi OSC engine bind cổng bị mất → item câm dù keybed kêu. Nốt khi
-// chưa ready được nhét queue, flush khi bridge OSC ready (giữ đúng thứ tự).
-const flushCarlaNoteQueue = () => {
-  const q = window.__carlaNoteQueue || [];
-  if (!q.length) return;
-  window.__carlaNoteQueue = [];
-  q.forEach(item => {
-    const remaining = item.delay - (Date.now() - item.scheduledAt);
-    if (remaining <= 0) fireCarlaNote(item.ch, item.pitch, item.vel, 0, item.durMs);
-    else fireCarlaNote(item.ch, item.pitch, item.vel, remaining, item.durMs);
-  });
-};
-const scheduleCarlaNote = (synthEngine, channel, pitch, velocity, startWallTime, durMs) => {
-  try {
-    if (!window.SonicCarlaMidi || !window.SonicCarlaMidi.shouldRoutePlayback(synthEngine)) return;
-    const ctx = getAudioContext();
-    const delay = Math.max(0, (startWallTime - ctx.currentTime) * 1000);
-    const carlaVel = Math.round((velocity || 0.8) * 127);
-    const carlaCh = (synthEngine && synthEngine.midi_channel !== undefined) ? synthEngine.midi_channel : (channel || 0);
-    // Chẩn đoán: note MIDI item → Carla (bật console.log để verify route)
-    if (window.__carlaNoteLog === undefined) window.__carlaNoteLog = (window.__carlaNoteLog || 0) + 1;
-    console.log('[Carla] item note ch=' + carlaCh + ' pitch=' + pitch + ' vel=' + carlaVel + ' delay=' + delay.toFixed(0) + 'ms dur=' + (durMs || 300) + 'ms');
-    const dur = durMs || 300;
-    if (window.__carlaRunning !== true) {
-      window.__carlaNoteQueue = window.__carlaNoteQueue || [];
-      window.__carlaNoteQueue.push({ ch: carlaCh, pitch, vel: carlaVel, scheduledAt: Date.now(), delay, durMs: dur });
-      return;
-    }
-    fireCarlaNote(carlaCh, pitch, carlaVel, delay, dur);
-  } catch (e) { console.warn('[Carla] scheduleCarlaNote error:', e); }
-};
-
-// ── Carla bridge alive tracking + auto-open ────────────────────────────────
-// window.__carlaRunning: undefined = chưa biết | true = đang chạy | false = đã chết.
-// window.__carlaNoteQueue: nốt chờ flush khi Carla chưa ready (cold start).
-// Quyết định route MIDI item EXCLUSIVE qua Carla hay fallback FluidSynth —
-// tránh "câm toàn phần" khi Carla bị đóng (route chỉ-Carla mà Carla chết = im lặng).
-const refreshCarlaStatus = () => {
-  try {
-    if (!window.SonicAPI || !window.SonicAPI.carlaStatus) return;
-    window.SonicAPI.carlaStatus().then(st => {
-      window.__carlaRunning = !!(st && st.running);
-      if (window.__carlaRunning) flushCarlaNoteQueue();
-    }).catch(() => { window.__carlaRunning = false; });
-  } catch (e) {}
-};
-// Carla chưa chạy → TỰ ĐỘNG mở với VSTi của track rồi CHỜ OSC ready (poll
-// carla-status tối đa 10s) — nốt chỉ gửi khi bridge thực sự nhận được.
-// Có gate __carlaOpening chống spawn trùng (mỗi play chỉ mở 1 lần).
-
 
 // ── Môi trường chạy: docker vs standalone ─────────────────────────────────
 // environment: "docker" → âm instrument qua FluidSynthWASM (client); "standalone"
-// → xử lí trực tiếp trên OS (backend native pyfluidsynth / Carla). Quy tắc:
+// → xử lí trực tiếp trên OS (backend native pyfluidsynth). Quy tắc:
 // KHÔNG phải docker = standalone (Windows/Linux/macOS chạy trực tiếp).
 const sfEnv = () => {
   try {
@@ -223,9 +164,6 @@ const isSfTrackEngine = (se) => {
   return !!(se.soundfont_id || String(se.type || '').indexOf('soundfont') !== -1 || String(se.type || '').indexOf('sf3') !== -1);
 };
 const isVstTrackEngine = (se) => !!se && String(se.type || '').indexOf('vst') !== -1;
-// Track dùng VSTi + Carla local → route Carla (native GUI, realtime).
-const shouldRouteCarla = (se) => !!(window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoutePlayback(se));
-
 // ── Native soundfont preview (standalone) ─────────────────────────────────
 // Render 1 note bằng backend native FluidSynth (pyfluidsynth) → play WAV.
 // Mỗi key (thường = track.id) một Audio element — note mới stop note cũ;
@@ -1550,10 +1488,10 @@ function createTrackFxModule(type, ctx, params) {
     nodes = { gLL, gRL, gLR, gRR };
   } else if (type === 'eqpro') {
     return createEqProModule(ctx, params);
-  } else if (type === 'carla' || type === 'vst3') {
-    // Carla Bridge / VST FX = xử lý NGOÀI (Carla standalone / fx_vst_bridge
-    // --render-fx khi export) — trong WebAudio graph chỉ là pass-through
-    // (không thêm DSP): âm track đi thẳng, đúng vị trí chain.
+  } else if (type === 'vst3') {
+    // VST FX = xử lý NGOÀI (fx_vst_bridge --render-fx khi export) — trong
+    // WebAudio graph chỉ là pass-through (không thêm DSP): âm track đi thẳng,
+    // đúng vị trí chain.
     input.connect(output);
     nodes = { passthrough: input };
   } else {
@@ -1935,9 +1873,9 @@ function rebuildMasteringGraph(activate, chainArray) {
     Object.keys(eqProStore).forEach(k => { try { eqProStore[k].destroy && eqProStore[k].destroy(); } catch (e) { } });
     Object.keys(eqProStore).forEach(k => delete eqProStore[k]);
     activeMods.forEach(mod => {
-      if (mod.type === 'carla' || mod.type === 'vst3') {
-        // Carla Bridge = VST FX chạy NGOÀI (Carla standalone) — không có node
-        // WebAudio trong master chain: pass-through, prev giữ nguyên.
+      if (mod.type === 'vst3') {
+        // VST FX chạy NGOÀI (fx_vst_bridge) — không có node WebAudio trong
+        // master chain: pass-through, prev giữ nguyên.
         return;
       }
       if (mod.type === 'eqpro') {
@@ -6172,10 +6110,6 @@ const PluginManagerModal = ({ isOpen, onClose, pluginsData, onInsertInstrument }
   const [pmSfExpanded, setPmSfExpanded] = React.useState({});
   const [pmSfInstruments, setPmSfInstruments] = React.useState({});
   const [pmSfLoading, setPmSfLoading] = React.useState({});
-  // Force re-render sau khi định vị Carla (capabilities đổi)
-  const [pmCarlaVersion, setPmCarlaVersion] = React.useState(0);
-  // Khai báo trực tiếp thư mục chứa carla.exe (nhập tay, không cần picker)
-  const [pmCarlaPathInput, setPmCarlaPathInput] = React.useState('');
   // D7: trạng thái Native Bridge (query khi mở modal) — badge header.
   const [bridgeStatus, setBridgeStatus] = React.useState(null);
   React.useEffect(() => {
@@ -6287,52 +6221,6 @@ const PluginManagerModal = ({ isOpen, onClose, pluginsData, onInsertInstrument }
       }
     }
   };
-  // Định vị Carla.exe — bản Windows là zip portable: KHÔNG cài đặt, KHÔNG dùng
-  // biến môi trường PATH nên heuristic không tìm thấy → user tự chọn thư mục
-  // chứa carla.exe (folder picker native) → lưu config phía server.
-  const locateCarla = async () => {
-    try {
-      let picked = null;
-      try {
-        const d = await window.SonicAPI.pickPluginDir();
-        if (d && typeof d.path === 'string' && d.path) picked = d.path;
-      } catch (e) { /* fallthrough */ }
-      if (!picked && window.__TAURI__ && window.__TAURI__.core && window.__TAURI__.core.invoke) {
-        try {
-          const sel = await window.__TAURI__.core.invoke('plugin:dialog|open', { options: { directory: true, multiple: false } });
-          if (typeof sel === 'string' && sel) picked = sel;
-        } catch (e) { /* fallthrough */ }
-      }
-      if (!picked) { showToast('Không mở được hộp thoại chọn thư mục', 'error'); return; }
-      const r = await window.SonicAPI.setCarlaPath(picked);
-      if (r && r.success && r.carla_path) {
-        window.SonicRuntime.capabilities = r;
-        document.documentElement.dataset.carla = r.features && r.features.carla_local ? '1' : '0';
-        setPmCarlaVersion(v => v + 1);
-        showToast('Đã định vị Carla: ' + r.carla_path, 'success');
-      } else {
-        showToast('Không tìm thấy carla.exe trong thư mục đã chọn', 'error');
-      }
-    } catch (err) { showToast('Lỗi định vị Carla: ' + (err.message || err), 'error'); }
-  };
-  // Khai báo thư mục Carla trực tiếp (nhập tay) — tương tự Định vị nhưng
-  // không cần hộp thoại chọn thư mục.
-  const saveCarlaInput = async () => {
-    const p = (pmCarlaPathInput || '').trim();
-    if (!p) { showToast('Nhập đường dẫn thư mục chứa carla.exe', 'warning'); return; }
-    try {
-      const r = await window.SonicAPI.setCarlaPath(p);
-      if (r && r.success && r.carla_path) {
-        window.SonicRuntime.capabilities = r;
-        document.documentElement.dataset.carla = r.features && r.features.carla_local ? '1' : '0';
-        setPmCarlaVersion(v => v + 1);
-        setPmCarlaPathInput('');
-        showToast('Đã lưu Carla: ' + r.carla_path, 'success');
-      } else {
-        showToast('Không tìm thấy carla.exe trong đường dẫn đã nhập', 'error');
-      }
-    } catch (err) { showToast('Lỗi: ' + (err.message || err), 'error'); }
-  };
   // Lưu dirs (user override) + scan cả 2 thư mục → refresh list + catalog.
   // dirsOverride: mảng dirs mới nhất (fix stale-closure: setTimeout giữ
   // pmDirs cũ nên add/remove xong tự scan lại vẫn lưu dir cũ).
@@ -9055,11 +8943,11 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
           var pvCtx = resolveTrackInstrumentCtx(pvTrk, activeTracks);
           ensureSonicInstrument(pvCtx);
           playing.forEach(n => {
-            if (isStandaloneSf() && isSfTrackEngine(pvCtx.synthEngine) && !shouldRouteCarla(pvCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+            if (isStandaloneSf() && isSfTrackEngine(pvCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
               playNativeSfNote(pvTrk, n.pitch, n.velocity || 0.8, 200, undefined, 'pv_' + st.trackId);
               return;
             }
-            if (isStandaloneSf() && isVstTrackEngine(pvCtx.synthEngine) && !shouldRouteCarla(pvCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+            if (isStandaloneSf() && isVstTrackEngine(pvCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
               playNativeVstNote(pvTrk, n.pitch, n.velocity || 0.8, 200, undefined, 'pv_' + st.trackId);
               return;
             }
@@ -9429,9 +9317,9 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
         var clTrk = activeTracks.find(function(t) { return t.id === st.trackId; });
         var clCtx = resolveTrackInstrumentCtx(clTrk, activeTracks);
         ensureSonicInstrument(clCtx);
-        if (isStandaloneSf() && isSfTrackEngine(clCtx.synthEngine) && !shouldRouteCarla(clCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+        if (isStandaloneSf() && isSfTrackEngine(clCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
           playNativeSfNote(clTrk, notes[clickedNoteIdx].pitch, notes[clickedNoteIdx].velocity || 0.8, 300, undefined, 'pv_' + st.trackId);
-        } else if (isStandaloneSf() && isVstTrackEngine(clCtx.synthEngine) && !shouldRouteCarla(clCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+        } else if (isStandaloneSf() && isVstTrackEngine(clCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
           playNativeVstNote(clTrk, notes[clickedNoteIdx].pitch, notes[clickedNoteIdx].velocity || 0.8, 300, undefined, 'pv_' + st.trackId);
         } else {
           scheduleMidiNoteDispatch(clTrk, notes[clickedNoteIdx].pitch, notes[clickedNoteIdx].velocity || 0.8, 300, ctx.currentTime, clCtx.program, null, clCtx.ch, clCtx.synthEngine);
@@ -9695,9 +9583,9 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
       var dwCh = dwTrk ? assignTrackMidiChannel(dwTrk, activeTracks) : 0;
       var dwPitch = snapToScaleRef.current ? snapPitchToScale(pitch, selectedScaleRef.current) : pitch;
       var dwDurMs = Math.max(100, Math.round(initialDur * (60 / bpm) * 1000));
-      if (isStandaloneSf() && isSfTrackEngine(dwTrk && dwTrk.synth_engine) && !shouldRouteCarla(dwTrk && dwTrk.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+      if (isStandaloneSf() && isSfTrackEngine(dwTrk && dwTrk.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
         playNativeSfNote(dwTrk, dwPitch, brushVelocityRef.current || 0.8, dwDurMs, undefined, 'pvdraw_' + st.trackId);
-      } else if (isStandaloneSf() && isVstTrackEngine(dwTrk && dwTrk.synth_engine) && !shouldRouteCarla(dwTrk && dwTrk.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+      } else if (isStandaloneSf() && isVstTrackEngine(dwTrk && dwTrk.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
         playNativeVstNote(dwTrk, dwPitch, brushVelocityRef.current || 0.8, dwDurMs, undefined, 'pvdraw_' + st.trackId);
       } else if (window.SonicSF && window.SonicSF.playNote) {
         const ctx = getAudioContext();
@@ -9798,9 +9686,9 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
         try { if (window.__ensureMasteringRouting) window.__ensureMasteringRouting(); } catch (er) {}
         var pvTrk = activeTracks.find(function(t) { return t.id === st.trackId; });
         var pvCtxInst = resolveTrackInstrumentCtx(pvTrk, activeTracks);
-        if (isStandaloneSf() && isSfTrackEngine(pvCtxInst.synthEngine) && !shouldRouteCarla(pvCtxInst.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+        if (isStandaloneSf() && isSfTrackEngine(pvCtxInst.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
           playNativeSfNote(pvTrk, p, brushVelocityRef.current || 0.8, durMs, undefined, 'pvdraw_' + st.trackId);
-        } else if (isStandaloneSf() && isVstTrackEngine(pvCtxInst.synthEngine) && !shouldRouteCarla(pvCtxInst.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+        } else if (isStandaloneSf() && isVstTrackEngine(pvCtxInst.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
           playNativeVstNote(pvTrk, p, brushVelocityRef.current || 0.8, durMs, undefined, 'pvdraw_' + st.trackId);
         } else if (window.SonicSF && window.SonicSF.playNote) {
           var pvCtx = getAudioContext();
@@ -9809,11 +9697,6 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
           scheduleMidiNoteDispatch(pvTrk, p, brushVelocityRef.current || 0.8, durMs, pvCtx.currentTime, pvCtxInst.program, null, pvCtxInst.ch, pvCtxInst.synthEngine);
           previewPitchRef.current = p;
         }
-        // MIDI → Carla (track VSTi + ARM + Carla local): preview realtime
-        if (window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoute(pvTrk && pvTrk.synth_engine, st.isArmed)) {
-          var pvVel2 = Math.round((brushVelocityRef.current || 0.8) * 127);
-          window.SonicCarlaMidi.playNote(pvTrk && pvTrk.synth_engine ? (pvTrk.synth_engine.midi_channel || 0) : 0, p, pvVel2, durMs);
-        }
       }
 
       if (pitchChanged) {
@@ -10192,8 +10075,8 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
               if (window.triggerMidiVuActivity) {
                 window.triggerMidiVuActivity((st.parent_tab_id && st.parent_tab_id.startsWith('session_') ? '_sess_' : '') + st.trackId, 100);
               }
-              const kbNative = isStandaloneSf() && isSfTrackEngine(kbCtx.synthEngine) && !shouldRouteCarla(kbCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
-              const kbNativeVst = isStandaloneSf() && isVstTrackEngine(kbCtx.synthEngine) && !shouldRouteCarla(kbCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
+              const kbNative = isStandaloneSf() && isSfTrackEngine(kbCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
+              const kbNativeVst = isStandaloneSf() && isVstTrackEngine(kbCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
               if (kbNative) {
                 playNativeSfNote(kbTrk, pitch, 100 / 127, 5000, undefined, 'kb_' + st.trackId + '_' + pitch);
               } else if (kbNativeVst) {
@@ -10208,12 +10091,6 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
                 // NGAY (trước đây 500ms → note tự tắt giữa chừng khi giữ phím).
                 window.SonicSF.playNote(pitch, 100, 5000, undefined, kbCtx.program, null, kbCtx.ch, kbCtx.synthEngine);
               }
-              // MIDI → Carla (track VSTi + ARM + Carla local): preview realtime
-              if (window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoute(kbCtx.synthEngine, st.isArmed)) {
-                window.SonicCarlaMidi.noteOn(kbCtx.ch, pitch, 100);
-                if (window.__carlaKeybedTimer) clearTimeout(window.__carlaKeybedTimer);
-                window.__carlaKeybedTimer = setTimeout(function () { window.SonicCarlaMidi.noteOff(kbCtx.ch, pitch); }, 650);
-              }
             } catch (err) {
               console.error('playNote error:', err);
             }
@@ -10224,23 +10101,18 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
                 if (window.triggerMidiVuActivity) {
                   window.triggerMidiVuActivity((st.parent_tab_id && st.parent_tab_id.startsWith('session_') ? '_sess_' : '') + st.trackId, 100);
                 }
-                if (isStandaloneSf() && isSfTrackEngine(kbCtx.synthEngine) && !shouldRouteCarla(kbCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+                if (isStandaloneSf() && isSfTrackEngine(kbCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
                   playNativeSfNote(kbTrk, pitch, 100 / 127, 5000, undefined, 'kb_' + st.trackId + '_' + pitch);
-                } else if (isStandaloneSf() && isVstTrackEngine(kbCtx.synthEngine) && !shouldRouteCarla(kbCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+                } else if (isStandaloneSf() && isVstTrackEngine(kbCtx.synthEngine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
                   playNativeVstNote(kbTrk, pitch, 100 / 127, 5000, undefined, 'kb_' + st.trackId + '_' + pitch);
                 }
                 if (window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive()) {
                   try { if (window.__ensureBridgeProgram) window.__ensureBridgeProgram(kbTrk ? kbTrk.id : 0, kbCtx.program, kbCtx.synthEngine); } catch (er) {}
                   window.SonicMidiRouter.pushEvent({ cmd: 'NOTE_ON', channel: kbTrk ? kbTrk.id : 0, pitch: pitch, velocity: 100 / 127, percussion: !!(kbCtx && kbCtx.synthEngine && kbCtx.synthEngine.soundfont_bank === 128), live: true });
-                } else if (window.SonicSF && !(isStandaloneSf() && (isSfTrackEngine(kbCtx.synthEngine) || isVstTrackEngine(kbCtx.synthEngine)) && !shouldRouteCarla(kbCtx.synthEngine))) {
+                } else if (window.SonicSF && !(isStandaloneSf() && (isSfTrackEngine(kbCtx.synthEngine) || isVstTrackEngine(kbCtx.synthEngine)))) {
                   // giữ note khi kéo qua phím (mouse enter) — dừng bằng mouseup/leave
                   window.SonicSF.playNote(pitch, 100, 5000, undefined, kbCtx.program, null, kbCtx.ch, kbCtx.synthEngine);
                 }
-                if (window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoute(kbCtx.synthEngine, st.isArmed)) {
-                  window.SonicCarlaMidi.noteOn(kbCtx.ch, pitch, 100);
-                  if (window.__carlaKeybedTimer) clearTimeout(window.__carlaKeybedTimer);
-                  window.__carlaKeybedTimer = setTimeout(function () { window.SonicCarlaMidi.noteOff(kbCtx.ch, pitch); }, 650);
-                }
               } catch (err) { console.error('playNote error:', err); }
             }
           },
@@ -10253,8 +10125,6 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
                 window.SonicMidiRouter.pushEvent({ cmd: 'NOTE_OFF', channel: kbTrk ? kbTrk.id : 0, pitch: pitch, velocity: 0, percussion: !!(kbCtx && kbCtx.synthEngine && kbCtx.synthEngine.soundfont_bank === 128), live: true });
               } else if (window.SonicSF && window.SonicSF.stopNote) window.SonicSF.stopNote(kbCtx.ch, pitch);
             } catch (e) {}
-            if (window.__carlaKeybedTimer) { clearTimeout(window.__carlaKeybedTimer); window.__carlaKeybedTimer = null; }
-            if (window.SonicCarlaMidi) { try { window.SonicCarlaMidi.noteOff(kbCtx.ch, pitch); } catch (e) {} }
           },
           onMouseLeave: () => {
             if (!keybedMouseDownRef.current) return;
@@ -10265,7 +10135,6 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
                 window.SonicMidiRouter.pushEvent({ cmd: 'NOTE_OFF', channel: kbTrk ? kbTrk.id : 0, pitch: pitch, velocity: 0, percussion: !!(kbCtx && kbCtx.synthEngine && kbCtx.synthEngine.soundfont_bank === 128), live: true });
               } else if (window.SonicSF && window.SonicSF.stopNote) window.SonicSF.stopNote(kbCtx.ch, pitch);
             } catch (e) {}
-            if (window.SonicCarlaMidi) { try { window.SonicCarlaMidi.noteOff(kbCtx.ch, pitch); } catch (e) {} }
           }
         }, showLabel && label)
       );
@@ -10763,8 +10632,7 @@ const beatSec = 60.0 / (parseInt(bpm) || 120);
     }, React.createElement("i", { "data-lucide": "file-down", className: "w-3 h-3" }), "Export MIDI"), React.createElement("button", {
       onClick: async () => {
         // Preview/export MIDI notes với âm VSTi: midi-render (pedalboard) →
-        // play wav ngay; nếu pedalboard không render được plugin (VST2/state
-        // GUI) fallback carla-play-notes (realtime qua Carla bridge, OSC).
+        // play wav ngay.
         const se = st.synth_engine || {};
         const instrumentId = se.plugin_id || st.instrumentId || null;
         if (!instrumentId || String(se.type || '').indexOf('vst') === -1) {
@@ -10788,17 +10656,11 @@ const beatSec = 60.0 / (parseInt(bpm) || 120);
           audio.play().catch(() => {});
           showToast(`Preview VSTi (${(res.duration_sec || 0).toFixed(1)}s) — ${se.plugin_id || instrumentId}`, 'success');
         } catch (err) {
-          // midi-render fail (404 plugin không load / 501 pedalboard) → Carla
-          try {
-            await window.SonicAPI.carlaPlayNotes({ notes: payload.notes, bpm: payload.bpm, channel: se.midi_channel || 0 });
-            showToast('Preview qua Carla (realtime) — nghe loa hệ thống', 'success');
-          } catch (err2) {
-            showToast('Preview VSTi thất bại: ' + ((err && err.message) || 'lỗi'), 'error');
-          }
+          showToast('Preview VSTi thất bại: ' + ((err && err.message) || 'lỗi'), 'error');
         }
       },
       className: "px-2.5 py-1 bg-violet-700 hover:bg-violet-600 text-white rounded text-xs flex items-center gap-1 transition font-semibold",
-      title: "Render MIDI notes bằng VSTi (pedalboard) và phát — fallback qua Carla realtime"
+      title: "Render MIDI notes bằng VSTi (pedalboard) và phát"
     }, React.createElement("i", { "data-lucide": "play", className: "w-3 h-3" }), "Preview VSTi"), React.createElement("button", {
       onClick: () => {
         const se = st.synth_engine || {};
@@ -12335,7 +12197,7 @@ const ExportModal = ({ open, onClose, exportSettings, setExportSettings, isExpor
     );
   };
 
-  const vstRow = (s, idx, toggleV, changeV, uploadV, moveV, removeV, fxl, chainLen, openGui, showCarla = true, activeIdx = -1, onSelect = null) => (
+  const vstRow = (s, idx, toggleV, changeV, uploadV, moveV, removeV, fxl, chainLen, openGui, activeIdx = -1, onSelect = null) => (
     <div key={idx} onClick={() => onSelect && onSelect(s, idx)} className={`flex items-center gap-2 bg-slate-900/60 border rounded-lg px-2 py-1.5 flex-wrap cursor-pointer transition-all ${activeIdx === idx ? 'border-teal-400 bg-slate-800/80' : 'border-slate-800 hover:border-slate-600'}`}>
       <button onClick={e => { e.stopPropagation(); toggleV(idx); }} className={`w-4 h-4 rounded-full flex items-center justify-center text-[9px] font-bold shrink-0 ${!s.bypass ? 'bg-teal-500 text-slate-950' : 'bg-slate-700 text-slate-300'}`} title={s.bypass ? 'Bypass' : 'Active'}>
         <i data-lucide="power" className="w-2.5 h-2.5"></i>
@@ -12348,7 +12210,6 @@ const ExportModal = ({ open, onClose, exportSettings, setExportSettings, isExpor
       <span className={`text-[9px] font-mono ${s.preset_b64 ? 'text-emerald-400' : 'text-slate-600'}`}>{s.preset_b64 ? '✓ preset' : 'no preset'}</span>
       <button onClick={e => { e.stopPropagation(); uploadV(idx); }} className="px-2 py-1 bg-slate-800 hover:bg-slate-700 text-slate-300 text-[10px] font-semibold rounded transition" title="Upload .vstpreset (Save preset)">Preset</button>
       {openGui && <button onClick={e => { e.stopPropagation(); openGui(s, idx); }} disabled={!s.path} className="px-2 py-1 bg-violet-800 hover:bg-violet-700 disabled:opacity-30 text-violet-100 text-[10px] font-semibold rounded transition" title="Mở GUI của VST (chỉnh thông số trực tiếp)"><i data-lucide="monitor" className="w-3 h-3"></i> GUI</button>}
-      {showCarla && <button onClick={e => { e.stopPropagation(); if (!s.path) { window.showToast && window.showToast('Chọn VST FX trước', 'warning'); return; } window.SonicAPI.openInCarla(s.name || s.path, s.path).then(r => { if (r && r.success) window.showToast && window.showToast('Đã mở Carla với ' + (s.name || s.path) + ' — chỉnh âm trong Carla rồi Save preset', 'success'); else window.showToast && window.showToast('Không mở được Carla', 'error'); }).catch(err => window.showToast && window.showToast('Lỗi mở Carla: ' + (err.message || err), 'error')); }} className="px-2 py-1 bg-teal-800 hover:bg-teal-700 text-teal-100 text-[10px] font-semibold rounded transition" title="Mở native GUI trong Carla">Carla</button>}
       <button onClick={e => { e.stopPropagation(); moveV(idx, -1); }} disabled={idx === 0} className="w-6 h-6 bg-slate-800 hover:bg-slate-700 text-slate-300 rounded text-xs disabled:opacity-30" title="Lên"><i data-lucide="chevron-up" className="w-3 h-3"></i></button>
       <button onClick={e => { e.stopPropagation(); moveV(idx, 1); }} disabled={idx === chainLen - 1} className="w-6 h-6 bg-slate-800 hover:bg-slate-700 text-slate-300 rounded text-xs disabled:opacity-30" title="Xuống"><i data-lucide="chevron-down" className="w-3 h-3"></i></button>
       <button onClick={e => { e.stopPropagation(); removeV(idx); }} className="text-slate-600 hover:text-red-400 text-xs px-0.5" title="Xóa slot"><i data-lucide="x" className="w-3 h-3"></i></button>
@@ -12843,7 +12704,7 @@ const addVst = (path) => { const fx = (fxList || []).find(f => f.path === path);
               <span className="text-slate-400">Active VST: <strong className="text-teal-400">{vstChain[activeVstIdx].name || vstChain[activeVstIdx].path}</strong></span>
               <span className="text-[9px] text-slate-500">Slot {activeVstIdx + 1}/{vstChain.length} — bấm card DSP trong CHAIN để chỉnh module builtin</span>
             </div>
-            {vstRow(vstChain[activeVstIdx], activeVstIdx, toggleVst, changeVstPlugin, uploadVstPreset, moveVst, removeVst, fxList, vstChain.length, openVstGui, true, activeVstIdx, null)}
+            {vstRow(vstChain[activeVstIdx], activeVstIdx, toggleVst, changeVstPlugin, uploadVstPreset, moveVst, removeVst, fxList, vstChain.length, openVstGui, activeVstIdx, null)}
           </div>
         ) : (
         <div className="flex-1 bg-slate-950 border border-slate-800 rounded-xl p-4 flex flex-col gap-4 min-h-[240px] overflow-y-auto oz-scrollbar">
@@ -12928,17 +12789,6 @@ const addVst = (path) => { const fx = (fxList || []).find(f => f.path === path);
             </div>
           )}
 
-          {activeMod && activeMod.type === 'carla' && activeIdx >= 0 && (
-            <div className="bg-amber-950/40 border border-amber-800/60 rounded-lg p-4 space-y-3">
-              <div className="text-[10px] text-amber-300 font-mono">Carla Bridge đã bị gỡ khỏi FX Rack — track cũ vẫn giữ module để không mất cấu hình.</div>
-              <button
-                onClick={() => removeMod(activeIdx)}
-                className="px-3 py-1.5 bg-amber-800 hover:bg-amber-700 text-amber-50 text-xs font-semibold rounded transition"
-              >
-                Gỡ module Carla khỏi track
-              </button>
-            </div>
-          )}
         </div>
         )}
 
@@ -13597,14 +13447,6 @@ const addMasterVst = (path) => { const fx = (masterFxList || []).find(f => f.pat
   // stable hook count across renders (error #310 otherwise).
   const dragChainIndexRef = React.useRef(null);
   const [addModuleOpen, setAddModuleOpen] = React.useState(false);
-  // Carla Bridge (VST FX) — danh sách VST để load vào Carla (master chain)
-  const [masterCarlaVsts, setMasterCarlaVsts] = React.useState(null); // null = chưa load
-  React.useEffect(() => {
-    if (isOpen && window.SonicAPI && window.SonicAPI.listPlugins) {
-      window.SonicAPI.listPlugins().then(d => setMasterCarlaVsts((d && d.vst_instruments) || [])).catch(() => setMasterCarlaVsts([]));
-    }
-  }, [isOpen]);
-
   if (!isOpen) return null;
 
   const switchModule = (name) => setOzState(prev => ({ ...prev, activeModule: name }));
@@ -13619,10 +13461,9 @@ const addMasterVst = (path) => { const fx = (masterFxList || []).find(f => f.pat
     limiter: { name: 'Brickwall Limiter', sub: 'True-Peak 20:1', icon: 'shield-half', color: '#f43f5e' },
     exciter: { name: 'Harmonic Exciter', sub: 'Saturation & Air', icon: 'wand-2', color: '#c084fc' },
     rebalance: { name: 'Master Rebalance', sub: 'M/S Balance', icon: 'sliders-horizontal', color: '#38bdf8' },
-    carla: { name: 'Carla Bridge (VST FX)', sub: 'Native VST audio processing', icon: 'sliders', color: '#14b8a6' },
     vst3: { name: 'VST FX', sub: 'VST3 plugin', icon: 'plug', color: '#2dd4bf' }
   };
-  const chainFlag = (type) => type === 'eq' ? 'eqActive' : type === 'eqpro' ? 'eqproActive' : type === 'imager' ? 'imagerActive' : type === 'maximizer' ? 'maximizerActive' : type === 'compressor' ? 'compActive' : type === 'limiter' ? 'limActive' : type === 'exciter' ? 'excActive' : type === 'carla' ? 'carlaBridgeActive' : type === 'vst3' ? 'vstFxActive' : 'rebalActive';
+  const chainFlag = (type) => type === 'eq' ? 'eqActive' : type === 'eqpro' ? 'eqproActive' : type === 'imager' ? 'imagerActive' : type === 'maximizer' ? 'maximizerActive' : type === 'compressor' ? 'compActive' : type === 'limiter' ? 'limActive' : type === 'exciter' ? 'excActive' : type === 'vst3' ? 'vstFxActive' : 'rebalActive';
   const chainActive = (type) => !!ozState[chainFlag(type)];
 
   const toggleChainModule = (modId) => {
@@ -13674,7 +13515,6 @@ const addMasterVst = (path) => { const fx = (masterFxList || []).find(f => f.pat
     const id = 'mod_' + type + '_' + Date.now();
     const entry = { id, type, name: meta.name, active: true };
     if (type === 'eqpro') entry.params = { amount: 100, bands: JSON.parse(JSON.stringify(EQPRO_DEFAULT_BANDS)) };
-    if (type === 'carla') entry.params = { plugin: '', plugin_path: '' };
     setOzState(prev => ({
       ...prev,
       chain: [...(prev.chain || []), entry],
@@ -14147,62 +13987,6 @@ const addMasterVst = (path) => { const fx = (masterFxList || []).find(f => f.pat
               </div>
             </div>
 
-            {/* VIEW: CARLA BRIDGE (VST FX) — load carla bridge để dùng VST chỉnh sửa âm thanh */}
-            <div className={`flex-1 flex flex-col p-4 gap-4 ${ozState.activeModule === 'carla' ? '' : 'hidden'}`}>
-              <div className="oz-panel p-4 rounded-xl flex-1 grid grid-cols-12 gap-6 items-center">
-                <div className="col-span-4 flex flex-col items-center justify-center border-r border-slate-800 pr-4">
-                  <span className="text-xs font-bold text-teal-400 uppercase oz-font-mono mb-3">Carla Bridge (VST FX)</span>
-                  <button onClick={() => toggleChainModule((ozState.chain || []).find(m => m.type === 'carla')?.id)}
-                    className={`px-3 py-1 rounded text-[10px] font-bold border transition-colors mt-2 ${ozState.carlaBridgeActive ? 'bg-teal-700 border-teal-500 text-white' : 'bg-slate-800 border-slate-700 text-slate-300'}`}>
-                    {ozState.carlaBridgeActive ? 'ON' : 'OFF'}
-                  </button>
-                </div>
-                <div className="col-span-8 space-y-3">
-                  <div className="flex items-end gap-2 flex-wrap">
-                    <div className="flex-1 min-w-[220px]">
-                      <div className="text-[9px] text-slate-500 oz-font-mono mb-1">CHỌN VST FX (đã scan trên máy)</div>
-                      <select
-                        value={(ozState.carlaBridge && ozState.carlaBridge.plugin) || ''}
-                        onChange={e => setOzState(prev => ({ ...prev, carlaBridge: { ...(prev.carlaBridge || {}), plugin: e.target.value, plugin_path: '' } }))}
-                        className="w-full bg-slate-950 border border-slate-700 text-teal-300 rounded px-2 py-1.5 text-xs outline-none focus:border-teal-500"
-                      >
-                        <option value="">— Chọn VST FX —</option>
-                        {(masterCarlaVsts || []).map(v => <option key={v.id || v.name} value={v.id || v.name}>{v.name || v.id}</option>)}
-                      </select>
-                    </div>
-                    <button
-                      onClick={() => {
-                        const plugin = (ozState.carlaBridge && ozState.carlaBridge.plugin) || '';
-                        if (!plugin) { window.showToast && window.showToast('Chọn VST FX trước khi Load Carla', 'warning'); return; }
-                        window.SonicAPI.openInCarla(plugin, ozState.carlaBridge.plugin_path).then(r => {
-                          if (r && r.success) {
-                            setOzState(prev => ({ ...prev, carlaBridge: { ...(prev.carlaBridge || {}), connected: true } }));
-                            window.showToast && window.showToast('Đã mở Carla với ' + plugin + ' (VST FX) — chỉnh âm thanh trong Carla', 'success');
-                          } else { window.showToast && window.showToast('Không mở được Carla', 'error'); }
-                        }).catch(err => window.showToast && window.showToast('Lỗi mở Carla: ' + (err.message || err), 'error'));
-                      }}
-                      className="px-4 py-1.5 bg-teal-700 hover:bg-teal-600 text-white text-xs font-semibold rounded transition flex items-center gap-1 shrink-0"
-                    >
-                      <i data-lucide="play" className="w-3 h-3"></i> Load Carla Bridge
-                    </button>
-                    <button
-                      onClick={() => {
-                        if (window.SonicCarlaMidi && window.SonicCarlaMidi.stopBridge) window.SonicCarlaMidi.stopBridge();
-                        setOzState(prev => ({ ...prev, carlaBridge: { ...(prev.carlaBridge || {}), connected: false } }));
-                        window.showToast && window.showToast('Đã ngắt kết nối Carla Bridge', 'info');
-                      }}
-                      className="px-4 py-1.5 bg-zinc-800 hover:bg-zinc-700 text-red-300 text-xs font-semibold rounded transition flex items-center gap-1 shrink-0"
-                    >
-                      <i data-lucide="square" className="w-3 h-3"></i> Stop / Unload
-                    </button>
-                  </div>
-                  <div className="text-[10px] text-slate-500 oz-font-mono leading-relaxed">
-                    Mở Carla với VST FX để chỉnh sửa âm thanh master (native GUI). Module này là pass-through trong master chain (không thêm DSP WebAudio).
-                  </div>
-                </div>
-              </div>
-            </div>
-
             {/* WAVE OBSERVER INTEGRATION */}
             <div className="border-t border-slate-800 bg-slate-900/60 p-3 flex flex-col shrink-0">
               {/* Header */}
@@ -17181,20 +16965,17 @@ const App = () => {
     var mt = activeTracksRef.current || tracks;
     var curTrk = null;
     for (var ci = 0; ci < mt.length; ci++) { if (mt[ci].id === trackId) { curTrk = mt[ci]; break; } }
-    // ── Unload Carla bridge khi chuyển từ VSTi sang instrument KHÔNG phải VST ──
-    // (soundfont/GM/default). Nếu không, Carla vẫn chạy với VSTi cũ → MIDI vẫn
-    // play qua Carla bridge (âm sai instrument + âm kẹt không dừng được).
+    // ── Panic khi chuyển từ VSTi sang instrument KHÔNG phải VST ──
+    // (soundfont/GM/default) — dừng mọi note đang vang từ VSTi cũ.
     try {
       const _hasInst = !!instrumentId;
       const _wasVst = curTrk && curTrk.synth_engine && String(curTrk.synth_engine.type || '').indexOf('vst') !== -1;
       const _nowVst = _hasInst && !isSfInstrument;
-      if (_wasVst && !_nowVst && window.SonicCarlaMidi && window.SonicCarlaMidi.stopBridge) {
-        window.SonicCarlaMidi.stopBridge();
+      if (_wasVst && !_nowVst) {
         try { if (window.SonicMidiRouter) window.SonicMidiRouter.panic(); else if (window.SonicSF && window.SonicSF.stopAll) window.SonicSF.stopAll(); } catch (e) {}
         stopAllNativeSfNotes(); stopAllNativeVstNotes();
-        console.log('[Instrument] Carla bridge unloaded — track', trackId, 'switched from VSTi to non-VST');
       }
-    } catch (e) { console.warn('[Instrument] carla-stop on instrument switch error:', e); }
+    } catch (e) {}
     var mch = curTrk ? assignTrackMidiChannel(curTrk, mt) : (sfBank === 128 ? 9 : 0);
     updateActiveTracks(prev => prev.map(t => {
       if (t.id !== trackId) return t;
@@ -17434,7 +17215,7 @@ const App = () => {
                   // Do NOT use raw MIDI hardware channel (msg.data[0] & 0x0F)
                   if (window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive()) {
                     // D1: bridge active -> 1 cổng router (per-track channel alloc) →
-                    // Rust SHM → C++ bridge; giữ SonicSF/Carla fallback ở nhánh else.
+                    // Rust SHM → C++ bridge; giữ SonicSF fallback ở nhánh else.
                     var bTracks = activeTracksRef.current || [];
                     bTracks.forEach(function (bt) {
                       if (!bt.isArmed) return;
@@ -17465,18 +17246,13 @@ const App = () => {
                           try {
                             heldMidiNotesRef.current[as.trackId] = (heldMidiNotesRef.current[as.trackId] || 0) + 1;
                           } catch (err) { }
-                          if (isStandaloneSf() && isSfTrackEngine(asSe) && !shouldRouteCarla(asSe)) {
+                          if (isStandaloneSf() && isSfTrackEngine(asSe)) {
                             playNativeSfNote(asTrk, pitch, scaledVel / 127, 60000, undefined, 'midi_' + as.trackId + '_' + pitch);
-                          } else if (isStandaloneSf() && isVstTrackEngine(asSe) && !shouldRouteCarla(asSe)) {
+                          } else if (isStandaloneSf() && isVstTrackEngine(asSe)) {
                             playNativeVstNote(asTrk, pitch, scaledVel / 127, 60000, undefined, 'midi_' + as.trackId + '_' + pitch);
                           } else {
                             window.SonicSF.playNote(pitch, scaledVel, 60000, undefined, asProg, null, asCh, asSe);
                           }
-                          // MIDI Keyboard → Carla bridge (piano roll sub-tab ARM):
-                          // track VSTi của sub-tab phát VSTi realtime giống keybed.
-                          if (window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoute(asSe, true)) {
-                            try { window.SonicCarlaMidi.noteOn(asCh, pitch, scaledVel); } catch (e) {}
-                          }
                        });
                      }
                      // Route to ALL armed tracks (not just the first one)
@@ -17492,20 +17268,13 @@ const App = () => {
                         try {
                           heldMidiNotesRef.current[at.id] = (heldMidiNotesRef.current[at.id] || 0) + 1;
                         } catch (err) { }
-                        if (isStandaloneSf() && isSfTrackEngine(atSe) && !shouldRouteCarla(atSe)) {
+                        if (isStandaloneSf() && isSfTrackEngine(atSe)) {
                           playNativeSfNote(at, pitch, scaledVel / 127, 60000, undefined, 'midi_' + at.id + '_' + pitch);
-                        } else if (isStandaloneSf() && isVstTrackEngine(atSe) && !shouldRouteCarla(atSe)) {
+                        } else if (isStandaloneSf() && isVstTrackEngine(atSe)) {
                           playNativeVstNote(at, pitch, scaledVel / 127, 60000, undefined, 'midi_' + at.id + '_' + pitch);
                         } else {
                           window.SonicSF.playNote(pitch, scaledVel, 60000, undefined, atProg, atDest, atCh, atSe);
                         }
-                        // MIDI Keyboard → Carla bridge (track VSTi + ARM + Carla
-                        // local): phát VSTi realtime — giống hệt keybed ảo. Trước
-                        // đây chỉ keybed gọi SonicCarlaMidi; keyboard hardware bị
-                        // bỏ sót → track VSTi không kêu khi bấm đàn thật.
-                        if (window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoute(atSe, at.isArmed)) {
-                          try { window.SonicCarlaMidi.noteOn(atCh, pitch, scaledVel); } catch (e) {}
-                        }
                         });
                    }
                } else if (cmd === 0x8 || (cmd === 0x9 && rawVel === 0)) {
@@ -17543,11 +17312,6 @@ const App = () => {
                      var stCh = assignTrackMidiChannel(st, stopTracks);
                      if (isStandaloneSf()) stopNativeSfNote('midi_' + st.id + '_' + pitch); stopNativeVstNote('midi_' + st.id + '_' + pitch);
                      window.SonicSF.stopNote(stCh, pitch);
-                     // MIDI Keyboard → Carla bridge: note-off khi thả phím — tránh
-                     // kẹt âm VSTi (giống keybed ảo).
-                     if (window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoute(st.synth_engine, st.isArmed)) {
-                       try { window.SonicCarlaMidi.noteOff(stCh, pitch); } catch (e) {}
-                     }
                      // Giảm counter note đang giữ — hết note → VU được phép decay/tắt
                      // (tick sẽ thấy counter = 0 và không còn giữ peak nữa)
                      try {
@@ -18195,9 +17959,9 @@ const App = () => {
     setAiPrompt(newText);
   };
 
-  // Gán preset VST3 (.vstpreset từ thư viện storage/presets — cầu nối
-  // Carla → pedalboard) vào track: preset_id nằm trong synth_engine → render
-  // engine tải qua load_preset khi render → âm render = âm đã chỉnh trong Carla.
+  // Gán preset VST3 (.vstpreset từ thư viện storage/presets) vào track:
+  // preset_id nằm trong synth_engine → render engine tải qua load_preset khi
+  // render → âm render = âm đã chỉnh trong preset.
   const setTrackPreset = (trackId, presetId) => {
     if (!trackId || !presetId) return;
     var mt = activeTracksRef.current || tracks;
@@ -19224,7 +18988,6 @@ const App = () => {
             limActive: false, limThreshold: -1.0,
             excActive: false, excDrive: 40,
             rebalActive: false, rebalMid: 0, rebalSide: 0,
-            carlaBridgeActive: false, carlaBridge: { plugin: '', plugin_path: '', connected: false },
           });
         }
         if (result.masterVolume !== undefined && result.masterVolume !== null) setMasterVolume(result.masterVolume);
@@ -22425,7 +22188,7 @@ const App = () => {
 
   // ── Virtual MIDI Keyboard note routing (Phase 5) ────────────────────────
   // NOTE_ON/NOTE_OFF theo pattern attachMidiHandler (hardware MIDI): bridge →
-  // per-track channel alloc; native SF/VST; SonicSF fallback; Carla; VU + giữ
+  // per-track channel alloc; native SF/VST; SonicSF fallback; VU + giữ
   // counter (heldMidiNotesRef); forward recorder (live record vào midiItems).
   const vkbNoteOn = (pitch, vel) => {
     try { if (window.__ensureMasteringRouting) window.__ensureMasteringRouting(); } catch (er) {}
@@ -22448,16 +22211,13 @@ const App = () => {
       if (window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive()) {
         try { if (window.__ensureBridgeProgram) window.__ensureBridgeProgram(t.id, ctx.program, ctx.synthEngine); } catch (er) {}
         try { window.SonicMidiRouter.pushEvent({ cmd: 'NOTE_ON', channel: t.id, pitch: pitch, velocity: vel, percussion: percussion, live: true }); } catch (e) {}
-      } else if (isStandaloneSf() && (isSfTrackEngine(ctx.synthEngine) || isVstTrackEngine(ctx.synthEngine)) && !shouldRouteCarla(ctx.synthEngine)) {
+      } else if (isStandaloneSf() && (isSfTrackEngine(ctx.synthEngine) || isVstTrackEngine(ctx.synthEngine))) {
         if (isSfTrackEngine(ctx.synthEngine)) playNativeSfNote(t, pitch, vel, 60000, undefined, 'vkb_' + t.id + '_' + pitch);
         else playNativeVstNote(t, pitch, vel, 60000, undefined, 'vkb_' + t.id + '_' + pitch);
       } else if (window.SonicSF) {
         const dest = (activeTrackNodesRef.current[t.id] && activeTrackNodesRef.current[t.id].gainNode) || null;
         window.SonicSF.playNote(pitch, Math.max(1, Math.round(vel * 127)), 60000, undefined, ctx.program, dest, ctx.ch, ctx.synthEngine);
       }
-      if (window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoute(ctx.synthEngine, t.isArmed)) {
-        try { window.SonicCarlaMidi.noteOn(ctx.ch, pitch, Math.max(1, Math.round(vel * 127))); } catch (e) {}
-      }
     });
     // Live record: forward tới mọi recorder đang chạy (timeline take / piano roll)
     if (activeMIDIRecordersRef.current) {
@@ -22481,9 +22241,6 @@ const App = () => {
       } else if (window.SonicSF && window.SonicSF.stopNote) {
         if (isStandaloneSf()) { stopNativeSfNote('vkb_' + t.id + '_' + pitch); stopNativeVstNote('vkb_' + t.id + '_' + pitch); }
         window.SonicSF.stopNote(ctx.ch, pitch);
-        if (window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoute(t.synth_engine, t.isArmed)) {
-          try { window.SonicCarlaMidi.noteOff(ctx.ch, pitch); } catch (e) {}
-        }
       }
       try {
         if (heldMidiNotesRef.current[t.id] !== undefined) {
@@ -23885,7 +23642,6 @@ const App = () => {
     const destNode = getOrCreateTrackNode(track, context);
     const program = track ? track.instrumentProgram : undefined;
     var prevCh = track ? assignTrackMidiChannel(track, activeTracks) : 0;
-    const routeCarla = shouldRouteCarla(track && track.synth_engine);
     // D7: bridge active → preview qua bridge (channel router allocate — đúng
     // instrument đã load khi chèn vào track).
     if (window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive()) {
@@ -23898,11 +23654,11 @@ const App = () => {
       }, (durationMs || 500) + 30);
       return;
     }
-    if (isStandaloneSf() && !routeCarla && isSfTrackEngine(track && track.synth_engine)) {
+    if (isStandaloneSf() && isSfTrackEngine(track && track.synth_engine)) {
       playNativeSfNote(track, pitch, velocity, durationMs, null, track ? track.id : 'global');
       return;
     }
-    if (isStandaloneSf() && !routeCarla && isVstTrackEngine(track && track.synth_engine)) {
+    if (isStandaloneSf() && isVstTrackEngine(track && track.synth_engine)) {
       playNativeVstNote(track, pitch, velocity, durationMs, null, track ? track.id : 'global');
       return;
     }
@@ -23983,10 +23739,9 @@ const App = () => {
     // loop restart (rAF callback → React commit trễ hơn setTimeout 0) bị drop
     // → loop pass 2+ câm. Set NGAY tại scheduler.
     isPlayingRef.current = true;
-    // ⚠️ FIX: đồng bộ mastering + Carla status NGAY khi play — MIDI item phải
-    // qua mastering FX (khi bật) và qua Carla bridge (khi VSTi loaded).
+    // ⚠️ FIX: đồng bộ mastering NGAY khi play — MIDI item phải qua mastering
+    // FX (khi bật).
     try { if (window.__ensureMasteringRouting) window.__ensureMasteringRouting(); } catch (e) {}
-    refreshCarlaStatus();
     const allPlayTracks = activeTracksRef.current && activeTracksRef.current.length ? activeTracksRef.current : activeTracks;
     // Capture items signature at schedule time — updatePlayhead so sánh với
     // signature này để phát hiện items đổi vị trí giữa lúc play (re-schedule).
@@ -24048,10 +23803,9 @@ const App = () => {
 
       // MIDI items playback
       const midiItems = track.midiItems || [];
-      const routeCarla = shouldRouteCarla(track.synth_engine);
-      const nativeSf = isStandaloneSf() && !routeCarla && isSfTrackEngine(track.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
-      const nativeVst = isStandaloneSf() && !routeCarla && isVstTrackEngine(track.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
-      if ((track.type === 'MIDI' || midiItems.length > 0) && (window.SonicSF || routeCarla || nativeSf || nativeVst)) {
+      const nativeSf = isStandaloneSf() && isSfTrackEngine(track.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
+      const nativeVst = isStandaloneSf() && isVstTrackEngine(track.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
+      if ((track.type === 'MIDI' || midiItems.length > 0) && (window.SonicSF || nativeSf || nativeVst)) {
         if (nativeSf || nativeVst) {
           scheduleNativeTrack(track, offsetTime, context, gainNode, bpm, { playheadNow: () => startOffsetTimeRef.current + (getAudioContext().currentTime - startAudioTimeRef.current), sources: activeSourcesRef.current, isActive: () => !!isPlayingRef.current });
         } else {
@@ -24076,16 +23830,10 @@ const App = () => {
             if (offsetTime < noteEndSec) {
               const durationMs = noteDurSec * 1000;
               const program = track._isSectionClone ? track.instrumentProgram : (track.instrumentProgram !== undefined ? track.instrumentProgram : 0);
-              // Track VSTi + Carla local → MIDI item PHẢI play qua Carla bridge
-              // (chỉ route Carla — KHÔNG play qua FluidSynth GM nữa, tránh âm
-              // sai instrument chồng lên). Không có Carla → FluidSynth như cũ.
-              // ⚠️ FIX: item route giống hệt keybed (không gate __carlaRunning — Carla mở
-              // thủ công/cũ vẫn phải route; gate cũ làm "keybed kêu, item câm").
-              const routeToCarla = !!(window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoutePlayback(track.synth_engine));
               if (offsetTime < noteStartSec) {
                 const delay = noteStartSec - offsetTime;
                 const startTime = context.currentTime + delay;
-                if (!routeToCarla && window.SonicSF) {
+                if (window.SonicSF) {
                   scheduleMidiNoteDispatch(
                     track, note.pitch || 60,
                     note.velocity || 0.8,
@@ -24097,9 +23845,6 @@ const App = () => {
                     track.synth_engine
                   );
                 }
-                // MIDI items → Carla bridge (track VSTi + Carla local): phát VSTi
-                // realtime — yêu cầu: MIDI item PHẢI play qua Carla khi VSTi loaded.
-                if (routeToCarla) scheduleCarlaNote(track.synth_engine, trkCh, note.pitch || 60, note.velocity || 0.8, startTime, durationMs);
                 // Trigger VU meter flash when the note starts playing
                 setTimeout(() => {
                   // ⚠️ Guard: stop → setTimeout sót không được fire (VU nhảy
@@ -24113,7 +23858,7 @@ const App = () => {
               } else {
                 const playOffset = offsetTime - noteStartSec;
                 const remainingDurMs = (noteEndSec - offsetTime) * 1000;
-                if (!routeToCarla && window.SonicSF) {
+                if (window.SonicSF) {
                   scheduleMidiNoteDispatch(
                     track, note.pitch || 60,
                     note.velocity || 0.8,
@@ -24125,8 +23870,6 @@ const App = () => {
                     track.synth_engine
                   );
                 }
-                // MIDI items → Carla bridge (track VSTi + Carla local)
-                if (routeToCarla) scheduleCarlaNote(track.synth_engine, trkCh, note.pitch || 60, note.velocity || 0.8, context.currentTime, remainingDurMs);
                 // Trigger VU meter flash instantly
                 if (window.triggerMidiVuActivity) {
                   window.triggerMidiVuActivity((activeTab && activeTab.startsWith('session_') ? '_sess_' : '') + track.id, note.velocity || 0.8);
@@ -24212,13 +23955,12 @@ const App = () => {
 
             // 2. Play MIDI items in subTrack
             const subMidiItems = subTrack.midiItems || [];
-            const subRouteCarla = shouldRouteCarla(subTrack.synth_engine);
-            const subNativeSf = isStandaloneSf() && !subRouteCarla && isSfTrackEngine(subTrack.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
-            const subNativeVst = isStandaloneSf() && !subRouteCarla && isVstTrackEngine(subTrack.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
-            if (subMidiItems.length > 0 && (window.SonicSF || subRouteCarla || subNativeSf || subNativeVst)) {
+            const subNativeSf = isStandaloneSf() && isSfTrackEngine(subTrack.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
+            const subNativeVst = isStandaloneSf() && isVstTrackEngine(subTrack.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
+            if (subMidiItems.length > 0 && (window.SonicSF || subNativeSf || subNativeVst)) {
               if (subNativeSf || subNativeVst) {
                 scheduleNativeTrack(subTrack, offsetTime, context, subNode, bpm, { baseOffsetSec: secStart, limitSec: secEnd, playheadNow: () => startOffsetTimeRef.current + (getAudioContext().currentTime - startAudioTimeRef.current), sources: activeSourcesRef.current, isActive: () => !!isPlayingRef.current });
-                return; // native render → audio buffer (không qua WASM/Carla per-note)
+                return; // native render → audio buffer (không qua WASM per-note)
               }
               subMidiItems.forEach(item => {
                 const notes = item.notes || [];
@@ -24234,15 +23976,12 @@ const App = () => {
                     const notePlayEndMain = Math.min(noteEndMain, secEnd);
                     const program = subTrack.instrumentProgram;
                     var subCh = assignTrackMidiChannel(subTrack, secTracks);
-                    // MIDI item trong SECTION → Carla bridge khi VSTi loaded
-                    // (chỉ route Carla — không play FluidSynth GM sai âm)
-                    const subRouteCarla = !!(window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoutePlayback(subTrack.synth_engine));
 
                     if (offsetTime < noteStartMain) {
                       const delay = noteStartMain - offsetTime;
                       const startTime = context.currentTime + delay;
                       const playDurMs = (notePlayEndMain - noteStartMain) * 1000;
-                      if (!subRouteCarla && window.SonicSF) {
+                      if (window.SonicSF) {
                         scheduleMidiNoteDispatch(
                           subTrack, note.pitch || 60,
                           note.velocity || 0.8,
@@ -24254,7 +23993,6 @@ const App = () => {
                           subTrack.synth_engine
                         );
                       }
-                      if (subRouteCarla) scheduleCarlaNote(subTrack.synth_engine, subCh, note.pitch || 60, note.velocity || 0.8, startTime, playDurMs);
                       // Trigger VU meter flash đúng nhịp (cả subTrack — VU
                       // section tab + parent track — VU MAIN): MIDI section đi
                       // SF → masterBus.input (không qua sub-node analyser) →
@@ -24272,7 +24010,7 @@ const App = () => {
                       }, delay * 1000);
                     } else {
                       const remainingDurMs = (notePlayEndMain - offsetTime) * 1000;
-                      if (!subRouteCarla && window.SonicSF) {
+                      if (window.SonicSF) {
                         scheduleMidiNoteDispatch(
                           subTrack, note.pitch || 60,
                           note.velocity || 0.8,
@@ -24284,7 +24022,6 @@ const App = () => {
                           subTrack.synth_engine
                         );
                       }
-                      if (subRouteCarla) scheduleCarlaNote(subTrack.synth_engine, subCh, note.pitch || 60, note.velocity || 0.8, context.currentTime, remainingDurMs);
                       if (window.triggerMidiVuActivity) {
                         // VU key theo CONTEXT (tách MAIN vs SECTION — 07:20)
                         window.triggerMidiVuActivity((activeTab && activeTab.startsWith('session_') ? '_sess_' : '') + subTrack.id, note.velocity || 0.8);
@@ -24318,7 +24055,6 @@ const App = () => {
     }
     isPlayingRef.current = true;
     try { if (window.__ensureMasteringRouting) window.__ensureMasteringRouting(); } catch (e) {}
-    refreshCarlaStatus();
     const track = tracks.find(t => t.id === trackId);
     if (!track) return;
     const clips = track.clips && track.clips.length > 0 ? track.clips : track.buffer ? [{
@@ -24358,13 +24094,12 @@ const App = () => {
 
     // MIDI items playback
     const midiItems = track.midiItems || [];
-    const routeCarla = shouldRouteCarla(track.synth_engine);
-    const nativeSf = isStandaloneSf() && !routeCarla && isSfTrackEngine(track.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
-    const nativeVst = isStandaloneSf() && !routeCarla && isVstTrackEngine(track.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
-    if ((track.type === 'MIDI' || midiItems.length > 0) && (window.SonicSF || routeCarla || nativeSf || nativeVst)) {
+    const nativeSf = isStandaloneSf() && isSfTrackEngine(track.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
+    const nativeVst = isStandaloneSf() && isVstTrackEngine(track.synth_engine) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive());
+    if ((track.type === 'MIDI' || midiItems.length > 0) && (window.SonicSF || nativeSf || nativeVst)) {
       if (nativeSf || nativeVst) {
         scheduleNativeTrack(track, offsetTime, context, gainNode, bpm, { playheadNow: () => startOffsetTimeRef.current + (getAudioContext().currentTime - startAudioTimeRef.current), sources: activeSourcesRef.current, isActive: () => !!isPlayingRef.current });
-        return; // native render → audio buffer (không qua WASM/Carla per-note)
+        return; // native render → audio buffer (không qua WASM per-note)
       }
       var lcCh = assignTrackMidiChannel(track, tracks);
       const bpmVal = parseInt(bpm) || 120;
@@ -24378,13 +24113,10 @@ const App = () => {
           if (offsetTime < noteEndSec) {
             const durationMs = noteDurSec * 1000;
             const program = track.instrumentProgram !== undefined ? track.instrumentProgram : 0;
-            // MIDI item → Carla bridge khi VSTi loaded (chỉ route Carla — không
-            // play FluidSynth GM sai âm chồng lên)
-            const routeToCarla = !!(window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoutePlayback(track.synth_engine));
             if (offsetTime < noteStartSec) {
               const delay = noteStartSec - offsetTime;
               const startTime = context.currentTime + delay;
-              if (!routeToCarla && window.SonicSF) {
+              if (window.SonicSF) {
                 scheduleMidiNoteDispatch(
                   track, note.pitch || 60,
                   note.velocity || 0.8,
@@ -24396,11 +24128,9 @@ const App = () => {
                   track.synth_engine
                 );
               }
-              // MIDI items → Carla bridge (track VSTi + Carla local)
-              if (routeToCarla) scheduleCarlaNote(track.synth_engine, lcCh, note.pitch || 60, note.velocity || 0.8, startTime, durationMs);
             } else {
               const remainingDurMs = (noteEndSec - offsetTime) * 1000;
-              if (!routeToCarla && window.SonicSF) {
+              if (window.SonicSF) {
                 scheduleMidiNoteDispatch(
                   track, note.pitch || 60,
                   note.velocity || 0.8,
@@ -24412,8 +24142,6 @@ const App = () => {
                   track.synth_engine
                 );
               }
-              // MIDI items → Carla bridge (track VSTi + Carla local)
-              if (routeToCarla) scheduleCarlaNote(track.synth_engine, lcCh, note.pitch || 60, note.velocity || 0.8, context.currentTime, remainingDurMs);
             }
           }
         });
@@ -24439,7 +24167,6 @@ const App = () => {
     // delay=0 của sub-tab loop restart không bị drop.
     isPlayingRef.current = true;
     try { if (window.__ensureMasteringRouting) window.__ensureMasteringRouting(); } catch (e) {}
-    refreshCarlaStatus();
     const midiNotes = notesOverride || st.notes || [];
     const bpmVal = parseInt(bpm) || 120;
     const secondsPerBeat = 60.0 / bpmVal;
@@ -24463,10 +24190,9 @@ const App = () => {
     // items placed later in the project play `item.startTime` seconds in the
     // future (silence when pressing play). Ghost notes are already relative to
     // the item window, so no absolute-session offset is applied anywhere here.
-    const routeCarla = shouldRouteCarla(synthEngine);
-    if (isStandaloneSf() && !routeCarla && (isSfTrackEngine(synthEngine) || isVstTrackEngine(synthEngine)) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
+    if (isStandaloneSf() && (isSfTrackEngine(synthEngine) || isVstTrackEngine(synthEngine)) && !(window.SonicMidiRouter && window.SonicMidiRouter.isBridgeActive())) {
       scheduleNativeTrack(track, offsetSeconds, context, destNode, bpm, { notesOverride: midiNotes, playheadNow: () => startOffsetTimeRef.current + (getAudioContext().currentTime - startAudioTimeRef.current), sources: activeSourcesRef.current, isActive: () => !!isPlayingRef.current });
-      return; // native render cả tab → audio buffer (không per-note WASM/Carla)
+      return; // native render cả tab → audio buffer (không per-note WASM)
     }
     midiNotes.forEach(note => {
       const noteOnBeat = note.start_beat || 0;
@@ -24478,22 +24204,9 @@ const App = () => {
         const effectiveDur = noteDurSec - Math.max(0, offsetSeconds - noteStartSec);
         const scheduledTime = startWallTime + effectiveStart;
         const durMs = effectiveDur * 1000;
-        // Track VSTi + Carla local → note PHẢI play qua Carla bridge (chỉ route
-        // Carla — không play FluidSynth GM sai âm chồng lên)
-        const routeToCarla = !!(window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoutePlayback(synthEngine));
-        if (!routeToCarla && window.SonicSF) {
+        if (window.SonicSF) {
           scheduleMidiNoteDispatch(track, note.pitch || 60, note.velocity || 0.8, durMs, scheduledTime, instrumentProgram, destNode, mainCh, synthEngine);
         }
-        // MIDI items → Carla (track VSTi + Carla local): phát VSTi realtime
-        // (schedule theo audio clock bằng setTimeout — preview, timing gần đúng).
-        if (routeToCarla) {
-          const carlaDelay = Math.max(0, (scheduledTime - context.currentTime) * 1000);
-          const carlaVel = Math.round((note.velocity || 0.8) * 127);
-          const carlaCh = (synthEngine && synthEngine.midi_channel !== undefined) ? synthEngine.midi_channel : mainCh;
-          const carlaPitch = note.pitch || 60;
-          setTimeout(function () { window.SonicCarlaMidi.noteOn(carlaCh, carlaPitch, carlaVel); }, carlaDelay);
-          scheduleNoteOff('C:' + carlaCh + ':' + carlaPitch, function () { window.SonicCarlaMidi.noteOff(carlaCh, carlaPitch); }, carlaDelay, durMs);
-        }
       }
     });
     // Play ghost notes from active tracks
@@ -24515,12 +24228,9 @@ const App = () => {
           var effDur = durSec - Math.max(0, offsetSeconds - startSec);
           var schedTime = startWallTime + effStart;
           var durMs = effDur * 1000;
-          // Ghost note → Carla bridge khi ghost track VSTi (chỉ route Carla)
-          var gRouteCarla = !!(window.SonicCarlaMidi && window.SonicCarlaMidi.shouldRoutePlayback(ghostSynth));
-          if (!gRouteCarla && window.SonicSF) {
+          if (window.SonicSF) {
             scheduleMidiNoteDispatch(ghostTrack, note.pitch || 60, note.velocity || 0.8, durMs, schedTime, ghostProg, ghostDest, ghostCh, ghostSynth);
           }
-          if (gRouteCarla) scheduleCarlaNote(ghostSynth, ghostCh, note.pitch || 60, note.velocity || 0.8, schedTime, durMs);
         }
       });
     });
@@ -34084,8 +33794,8 @@ STRICT CONSTRAINTS:
         inp.click();
       },
       className: "w-full text-left px-3 py-1 text-xs bg-zinc-800 hover:bg-teal-800 text-teal-300 border-t border-zinc-700",
-      title: "Upload preset .vstpreset xuất từ Carla (native GUI)"
-    }, "\u2B06 Upload preset (t\u1EEB Carla...)"),
+      title: "Upload preset .vstpreset xuất từ native GUI"
+    }, "\u2B06 Upload preset (t\u1EEB native GUI...)"),
     (!filteredInstruments.soundfonts.length && !filteredInstruments.vst.length) && /*#__PURE__*/React.createElement("p", { className: "text-xs text-zinc-500 py-4 text-center" }, "Kh\u00f4ng t\u00ecm th\u1ea5y nh\u1ea1c c\u1ee5 n\u00e0o")
   )));
 };
diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js
index b539422..fee57dc 100644
--- a/app/static/js/app.precompiled.js
+++ b/app/static/js/app.precompiled.js
@@ -20,11 +20,7 @@ synthEngine:se,sfId:se.soundfont_id,bank:se.soundfont_bank||0,prog:se.soundfont_
 window.__ensureBridgeProgram=(trkId,program,synthEngine)=>{try{if(!window.SonicMidiRouter||!window.SonicMidiRouter.isBridgeActive())return;const _bank=synthEngine&&synthEngine.soundfont_bank!==undefined?synthEngine.soundfont_bank:0;const _prog=program!==undefined&&program!==null?program:synthEngine&&synthEngine.soundfont_program!==undefined?synthEngine.soundfont_program:undefined;if(_prog===undefined||_prog===null)return;const _key=trkId+':'+_bank+':'+_prog;const _lp=window.__bridgeLastProgram||(window.__bridgeLastProgram={});if(_lp[_key])return;_lp[_key]=true;const _isPerc=_bank===128;window.SonicMidiRouter.pushEvent({cmd:'CC',channel:trkId,pitch:0,velocity:0,data2:_bank>>7&0x7F,percussion:_isPerc});window.SonicMidiRouter.pushEvent({cmd:'CC',channel:trkId,pitch:32,velocity:0,data2:_bank&0x7F,percussion:_isPerc});window.SonicMidiRouter.pushEvent({cmd:'PROGRAM',channel:trkId,pitch:0,velocity:0,data2:_prog,percussion:_isPerc});}catch(e){console.warn('[Bridge] ensureBridgeProgram error:',e);}};// Đảm bảo FluidSynth channel của track đã select ĐÚNG instrument trước khi
 // notes bắn. Fire-and-forget: playNote tự load + retry nếu SF chưa load xong
 // (dedup sẵn trong loadSoundFont) — không chặn, không gây stall khi mở tab.
-const ensureSonicInstrument=ctx=>{try{if(!window.SonicSF||!window.SonicSF.selectInstrument)return;if(ctx.sfId){window.SonicSF.selectInstrument(ctx.ch,ctx.bank,ctx.prog,ctx.sfId);}else if(ctx.program!==undefined){window.SonicSF.selectInstrument(ctx.ch,0,ctx.program,null);}}catch(e){console.warn('[Instrument] ensureSonicInstrument error:',e);}};// ── Carla bridge MIDI scheduling helper ────────────────────────────────────
-// Schedule note_on/note_off tới Carla (OSC qua backend) cho MIDI items khi
-// track dùng VSTi + có Carla local. Dùng chung cho mọi đường playback
-// (main timeline, local loop, piano roll, ghost notes) để MIDI item PHẢI play
-// qua Carla bridge khi VSTi được loaded.
+const ensureSonicInstrument=ctx=>{try{if(!window.SonicSF||!window.SonicSF.selectInstrument)return;if(ctx.sfId){window.SonicSF.selectInstrument(ctx.ch,ctx.bank,ctx.prog,ctx.sfId);}else if(ctx.program!==undefined){window.SonicSF.selectInstrument(ctx.ch,0,ctx.program,null);}}catch(e){console.warn('[Instrument] ensureSonicInstrument error:',e);}};// ── MIDI note-off scheduling helper (pending map chống note chồng) ─────────
 // FIX (Bug 2): NOTE_OFF trễ (dur+30ms) của note cùng pitch bắn SAU note-on kế
 // tiếp (bar liền nhau cùng hợp âm, piano roll note chồng) -> cắt note mới →
 // câm. Map pending theo key channel:pitch — schedule NOTE_OFF mới cùng key →
@@ -34,25 +30,12 @@ const pendingNoteOffMap={};// V18: note-off cũ cùng key KHÔNG bị hủy mù
 // âm echo, không decay. So sánh thời điểm: note-off cũ bắn TRƯỚC note-on mới →
 // giữ nguyên (decay đúng hạn). Note-off cũ bắn SAU note-on mới (overlap — Bug 2
 // cũ) → dời về NGAY TRƯỚC note-on mới: note cũ decay sạch, note mới ngân đủ.
-const scheduleNoteOff=(key,fn,noteOnDelayMs,durMs)=>{const offDelay=noteOnDelayMs+(durMs||1000)+30;const prev=pendingNoteOffMap[key];if(prev&&prev.offDelay>noteOnDelayMs){try{clearTimeout(prev.timer);}catch(e){}const t=setTimeout(function(){if(pendingNoteOffMap[key]&&pendingNoteOffMap[key].timer===t)delete pendingNoteOffMap[key];prev.fn();},Math.max(0,noteOnDelayMs-5));}const timer=setTimeout(function(){if(pendingNoteOffMap[key]&&pendingNoteOffMap[key].timer===timer)delete pendingNoteOffMap[key];fn();},offDelay);pendingNoteOffMap[key]={timer:timer,fn:fn,offDelay:offDelay};return timer;};const clearAllPendingNoteOffs=()=>{Object.keys(pendingNoteOffMap).forEach(function(k){const entry=pendingNoteOffMap[k];if(entry){try{clearTimeout(entry.timer);}catch(e){}}delete pendingNoteOffMap[k];});};const fireCarlaNote=(ch,pitch,vel,delay,durMs)=>{setTimeout(function(){window.SonicCarlaMidi.noteOn(ch,pitch,vel);},delay);scheduleNoteOff('C:'+ch+':'+pitch,function(){window.SonicCarlaMidi.noteOff(ch,pitch);},delay,durMs);};// ⚠️ FIX (Bug 2): Carla mở ASYNC lúc play (ensureCarlaForPlayback) — nốt gửi
-// trước khi OSC engine bind cổng bị mất → item câm dù keybed kêu. Nốt khi
-// chưa ready được nhét queue, flush khi bridge OSC ready (giữ đúng thứ tự).
-const flushCarlaNoteQueue=()=>{const q=window.__carlaNoteQueue||[];if(!q.length)return;window.__carlaNoteQueue=[];q.forEach(item=>{const remaining=item.delay-(Date.now()-item.scheduledAt);if(remaining<=0)fireCarlaNote(item.ch,item.pitch,item.vel,0,item.durMs);else fireCarlaNote(item.ch,item.pitch,item.vel,remaining,item.durMs);});};const scheduleCarlaNote=(synthEngine,channel,pitch,velocity,startWallTime,durMs)=>{try{if(!window.SonicCarlaMidi||!window.SonicCarlaMidi.shouldRoutePlayback(synthEngine))return;const ctx=getAudioContext();const delay=Math.max(0,(startWallTime-ctx.currentTime)*1000);const carlaVel=Math.round((velocity||0.8)*127);const carlaCh=synthEngine&&synthEngine.midi_channel!==undefined?synthEngine.midi_channel:channel||0;// Chẩn đoán: note MIDI item → Carla (bật console.log để verify route)
-if(window.__carlaNoteLog===undefined)window.__carlaNoteLog=(window.__carlaNoteLog||0)+1;console.log('[Carla] item note ch='+carlaCh+' pitch='+pitch+' vel='+carlaVel+' delay='+delay.toFixed(0)+'ms dur='+(durMs||300)+'ms');const dur=durMs||300;if(window.__carlaRunning!==true){window.__carlaNoteQueue=window.__carlaNoteQueue||[];window.__carlaNoteQueue.push({ch:carlaCh,pitch,vel:carlaVel,scheduledAt:Date.now(),delay,durMs:dur});return;}fireCarlaNote(carlaCh,pitch,carlaVel,delay,dur);}catch(e){console.warn('[Carla] scheduleCarlaNote error:',e);}};// ── Carla bridge alive tracking + auto-open ────────────────────────────────
-// window.__carlaRunning: undefined = chưa biết | true = đang chạy | false = đã chết.
-// window.__carlaNoteQueue: nốt chờ flush khi Carla chưa ready (cold start).
-// Quyết định route MIDI item EXCLUSIVE qua Carla hay fallback FluidSynth —
-// tránh "câm toàn phần" khi Carla bị đóng (route chỉ-Carla mà Carla chết = im lặng).
-const refreshCarlaStatus=()=>{try{if(!window.SonicAPI||!window.SonicAPI.carlaStatus)return;window.SonicAPI.carlaStatus().then(st=>{window.__carlaRunning=!!(st&&st.running);if(window.__carlaRunning)flushCarlaNoteQueue();}).catch(()=>{window.__carlaRunning=false;});}catch(e){}};// Carla chưa chạy → TỰ ĐỘNG mở với VSTi của track rồi CHỜ OSC ready (poll
-// carla-status tối đa 10s) — nốt chỉ gửi khi bridge thực sự nhận được.
-// Có gate __carlaOpening chống spawn trùng (mỗi play chỉ mở 1 lần).
-// ── Môi trường chạy: docker vs standalone ─────────────────────────────────
+const scheduleNoteOff=(key,fn,noteOnDelayMs,durMs)=>{const offDelay=noteOnDelayMs+(durMs||1000)+30;const prev=pendingNoteOffMap[key];if(prev&&prev.offDelay>noteOnDelayMs){try{clearTimeout(prev.timer);}catch(e){}const t=setTimeout(function(){if(pendingNoteOffMap[key]&&pendingNoteOffMap[key].timer===t)delete pendingNoteOffMap[key];prev.fn();},Math.max(0,noteOnDelayMs-5));}const timer=setTimeout(function(){if(pendingNoteOffMap[key]&&pendingNoteOffMap[key].timer===timer)delete pendingNoteOffMap[key];fn();},offDelay);pendingNoteOffMap[key]={timer:timer,fn:fn,offDelay:offDelay};return timer;};const clearAllPendingNoteOffs=()=>{Object.keys(pendingNoteOffMap).forEach(function(k){const entry=pendingNoteOffMap[k];if(entry){try{clearTimeout(entry.timer);}catch(e){}}delete pendingNoteOffMap[k];});};// ── Môi trường chạy: docker vs standalone ─────────────────────────────────
 // environment: "docker" → âm instrument qua FluidSynthWASM (client); "standalone"
-// → xử lí trực tiếp trên OS (backend native pyfluidsynth / Carla). Quy tắc:
+// → xử lí trực tiếp trên OS (backend native pyfluidsynth). Quy tắc:
 // KHÔNG phải docker = standalone (Windows/Linux/macOS chạy trực tiếp).
 const sfEnv=()=>{try{const r=window.SonicRuntime;if(r&&r.environment)return r.environment;const c=r&&r.capabilities;return c&&c.docker?'docker':'standalone';}catch(e){return'docker';}};const isDockerSf=()=>sfEnv()==='docker';const isStandaloneSf=()=>sfEnv()==='standalone';// Track dùng âm soundfont (không phải VSTi) — route native khi standalone.
-const isSfTrackEngine=se=>{if(!se)return false;return!!(se.soundfont_id||String(se.type||'').indexOf('soundfont')!==-1||String(se.type||'').indexOf('sf3')!==-1);};const isVstTrackEngine=se=>!!se&&String(se.type||'').indexOf('vst')!==-1;// Track dùng VSTi + Carla local → route Carla (native GUI, realtime).
-const shouldRouteCarla=se=>!!(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoutePlayback(se));// ── Native soundfont preview (standalone) ─────────────────────────────────
+const isSfTrackEngine=se=>{if(!se)return false;return!!(se.soundfont_id||String(se.type||'').indexOf('soundfont')!==-1||String(se.type||'').indexOf('sf3')!==-1);};const isVstTrackEngine=se=>!!se&&String(se.type||'').indexOf('vst')!==-1;// ── Native soundfont preview (standalone) ─────────────────────────────────
 // Render 1 note bằng backend native FluidSynth (pyfluidsynth) → play WAV.
 // Mỗi key (thường = track.id) một Audio element — note mới stop note cũ;
 // token chống stale (response cũ không đè response mới).
@@ -277,9 +260,9 @@ function createEqProModule(ctx,params){const input=ctx.createGain();const output
 const syncBands=newBands=>{bands.length=0;(newBands||[]).forEach(b=>bands.push({...b}));rebuild();};return{type:'eqpro',input,output,analyser,get bands(){return bands;},get filters(){return filters;},get amount(){return amount;},setBand,setAmount,rebuild,syncBands,destroy(){try{input.disconnect();output.disconnect();analyser.disconnect();}catch(e){}}};}function createTrackFxModule(type,ctx,params){const num=(v,def)=>{const n=Number(v);return isFinite(n)&&!isNaN(n)?n:def;};const maxF=(ctx.sampleRate||44100)*0.45;const clampF=v=>Math.max(20,Math.min(v,maxF));const input=ctx.createGain();const output=ctx.createGain();const p=params||{};let nodes={};if(type==='compressor'){const comp=ctx.createDynamicsCompressor();comp.threshold.value=num(p.threshold,-16);comp.knee.value=8;comp.ratio.value=num(p.ratio,3);comp.attack.value=0.02;comp.release.value=0.25;const makeup=ctx.createGain();makeup.gain.value=Math.pow(10,num(p.makeup,0)/20);input.connect(comp);comp.connect(makeup);makeup.connect(output);nodes={comp,makeup};}else if(type==='limiter'){// Brickwall Limiter bằng WaveShaper tanh soft-clip — KHÔNG DynamicsCompressor:
 // Chromium compressor phát NaN với bass transient mạnh (pitch thấp + vel cao
 // đồng loạt) → NaN vào master chain → 11 biquad "state is bad" → CÂM + stuck.
-const shaper=ctx.createWaveShaper();shaper.oversample='2x';const ceilingDb=Math.min(0,num(p.ceiling,-1.0));const threshLin=Math.pow(10,ceilingDb/20);const k=1/Math.max(0.02,threshLin);const _curve=new Float32Array(4096);const _tanhK=Math.tanh(k);for(let _i=0;_i<4096;_i++){const _x=_i/4095*2-1;_curve[_i]=Math.tanh(_x*k)/_tanhK;}shaper.curve=_curve;const makeup=ctx.createGain();makeup.gain.value=1.0;input.connect(shaper);shaper.connect(makeup);makeup.connect(output);nodes={shaper,makeup};}else if(type==='exciter'){const hp=ctx.createBiquadFilter();hp.type='highpass';hp.frequency.value=clampF(2000);hp.Q.value=0.7;const shaper=ctx.createWaveShaper();shaper.curve=makeDistortionCurve(3);shaper.oversample='4x';const dry=ctx.createGain();dry.gain.value=1.0;const wet=ctx.createGain();wet.gain.value=num(p.drive,40)/100*0.6;input.connect(dry);dry.connect(output);input.connect(hp);hp.connect(shaper);shaper.connect(wet);wet.connect(output);nodes={hp,shaper,dry,wet};}else if(type==='rebalance'){const split=ctx.createChannelSplitter(2);const merge=ctx.createChannelMerger(2);const gLL=ctx.createGain(),gRL=ctx.createGain(),gLR=ctx.createGain(),gRR=ctx.createGain();const midLin=Math.pow(10,num(p.mid,0)/20);const sideLin=Math.pow(10,num(p.side,0)/20);const a=(midLin+sideLin)/2,b=(midLin-sideLin)/2;gLL.gain.value=a;gRR.gain.value=a;gRL.gain.value=b;gLR.gain.value=b;input.connect(split);split.connect(gLL,0);split.connect(gRL,0);split.connect(gLR,1);split.connect(gRR,1);gLL.connect(merge,0,0);gRL.connect(merge,0,0);gLR.connect(merge,0,1);gRR.connect(merge,0,1);merge.connect(output);nodes={gLL,gRL,gLR,gRR};}else if(type==='eqpro'){return createEqProModule(ctx,params);}else if(type==='carla'||type==='vst3'){// Carla Bridge / VST FX = xử lý NGOÀI (Carla standalone / fx_vst_bridge
-// --render-fx khi export) — trong WebAudio graph chỉ là pass-through
-// (không thêm DSP): âm track đi thẳng, đúng vị trí chain.
+const shaper=ctx.createWaveShaper();shaper.oversample='2x';const ceilingDb=Math.min(0,num(p.ceiling,-1.0));const threshLin=Math.pow(10,ceilingDb/20);const k=1/Math.max(0.02,threshLin);const _curve=new Float32Array(4096);const _tanhK=Math.tanh(k);for(let _i=0;_i<4096;_i++){const _x=_i/4095*2-1;_curve[_i]=Math.tanh(_x*k)/_tanhK;}shaper.curve=_curve;const makeup=ctx.createGain();makeup.gain.value=1.0;input.connect(shaper);shaper.connect(makeup);makeup.connect(output);nodes={shaper,makeup};}else if(type==='exciter'){const hp=ctx.createBiquadFilter();hp.type='highpass';hp.frequency.value=clampF(2000);hp.Q.value=0.7;const shaper=ctx.createWaveShaper();shaper.curve=makeDistortionCurve(3);shaper.oversample='4x';const dry=ctx.createGain();dry.gain.value=1.0;const wet=ctx.createGain();wet.gain.value=num(p.drive,40)/100*0.6;input.connect(dry);dry.connect(output);input.connect(hp);hp.connect(shaper);shaper.connect(wet);wet.connect(output);nodes={hp,shaper,dry,wet};}else if(type==='rebalance'){const split=ctx.createChannelSplitter(2);const merge=ctx.createChannelMerger(2);const gLL=ctx.createGain(),gRL=ctx.createGain(),gLR=ctx.createGain(),gRR=ctx.createGain();const midLin=Math.pow(10,num(p.mid,0)/20);const sideLin=Math.pow(10,num(p.side,0)/20);const a=(midLin+sideLin)/2,b=(midLin-sideLin)/2;gLL.gain.value=a;gRR.gain.value=a;gRL.gain.value=b;gLR.gain.value=b;input.connect(split);split.connect(gLL,0);split.connect(gRL,0);split.connect(gLR,1);split.connect(gRR,1);gLL.connect(merge,0,0);gRL.connect(merge,0,0);gLR.connect(merge,0,1);gRR.connect(merge,0,1);merge.connect(output);nodes={gLL,gRL,gLR,gRR};}else if(type==='eqpro'){return createEqProModule(ctx,params);}else if(type==='vst3'){// VST FX = xử lý NGOÀI (fx_vst_bridge --render-fx khi export) — trong
+// WebAudio graph chỉ là pass-through (không thêm DSP): âm track đi thẳng,
+// đúng vị trí chain.
 input.connect(output);nodes={passthrough:input};}else{// 'eq' or default: 4-band EQ (params.g1..g4 = band gains in dB)
 const f1=ctx.createBiquadFilter();f1.type='lowshelf';f1.frequency.value=clampF(100);const f2=ctx.createBiquadFilter();f2.type='peaking';f2.frequency.value=clampF(800);f2.Q.value=0.7;const f3=ctx.createBiquadFilter();f3.type='peaking';f3.frequency.value=clampF(3200);f3.Q.value=1.2;const f4=ctx.createBiquadFilter();f4.type='highshelf';f4.frequency.value=clampF(10000);f1.gain.value=num(p.g1,0);f2.gain.value=num(p.g2,0);f3.gain.value=num(p.g3,0);f4.gain.value=num(p.g4,0);input.connect(f1);f1.connect(f2);f2.connect(f3);f3.connect(f4);f4.connect(output);nodes={f1,f2,f3,f4};}return{input,output,nodes,type};}// Offline-export helper: builds a track node IDENTICAL to playback (track FX
 // chain + mastering route + legacy chorus/reverb) but inside an OfflineAudioContext,
@@ -337,8 +320,8 @@ masterBus.inputAnalyser.connect(masterBus.outputAnalyser);masterBus.masteringAct
 const activeMods=(chainArray||[]).filter(m=>m&&m.active);if(activeMods.length===0){masterBus.inputAnalyser.connect(masterBus.outputAnalyser);masterBus.masteringActive=true;return;}// 3. Wire in series: Input → mod[0].input → mod[0].output → mod[1].input → … → Output
 let prev=masterBus.inputAnalyser;// Dynamic modules (eqpro): rebuilt on every graph rebuild; instances kept
 // in masterBus.eqProInstances so the Mastering panel can patch them live.
-const eqProStore=masterBus.eqProInstances=masterBus.eqProInstances||{};Object.keys(eqProStore).forEach(k=>{try{eqProStore[k].destroy&&eqProStore[k].destroy();}catch(e){}});Object.keys(eqProStore).forEach(k=>delete eqProStore[k]);activeMods.forEach(mod=>{if(mod.type==='carla'||mod.type==='vst3'){// Carla Bridge = VST FX chạy NGOÀI (Carla standalone) — không có node
-// WebAudio trong master chain: pass-through, prev giữ nguyên.
+const eqProStore=masterBus.eqProInstances=masterBus.eqProInstances||{};Object.keys(eqProStore).forEach(k=>{try{eqProStore[k].destroy&&eqProStore[k].destroy();}catch(e){}});Object.keys(eqProStore).forEach(k=>delete eqProStore[k]);activeMods.forEach(mod=>{if(mod.type==='vst3'){// VST FX chạy NGOÀI (fx_vst_bridge) — không có node WebAudio trong
+// master chain: pass-through, prev giữ nguyên.
 return;}if(mod.type==='eqpro'){const m=createEqProModule(getAudioContext(),mod.params||{});eqProStore[mod.id]=m;prev.connect(m.input);prev=m.output;}else{const io=MASTER_MODULE_IO[mod.type]||MASTER_MODULE_IO.eq;const inNode=masterBus[io.input];if(inNode)prev.connect(inNode);prev=masterBus[io.output]||prev;}});prev.connect(masterBus.outputAnalyser);masterBus.masteringActive=true;}catch(e){console.warn('rebuildMasteringGraph error:',e);}}function toggleMasteringOnMaster(activate,isBypassed){if(!masterBus)return;const active=!!(activate&&!isBypassed);const chain=window.currentMasteringSettings&&window.currentMasteringSettings.chain||[];const cSig=chainSignature(chain);// Idempotent: don't rebuild unless active state OR chain layout changed.
 if(_lastMasteringActive===active&&masterBus.masteringActive===active&&_lastChainSig===cSig)return;_lastMasteringActive=active;_lastChainSig=cSig;// Disconnect + immediately reconnect in one synchronous block so the master
 // routing can NEVER be left broken (a mid-swap exception would otherwise
@@ -513,9 +496,7 @@ useEffect(()=>{if(!isOpen)return;if(window.SonicAPI&&window.SonicAPI.apiRequest)
 // (không hiện — user đã yêu cầu bỏ gợi ý sau lần đầu).
 .catch(function(){setFirstTime(false);});}else{setFirstTime(false);}},[isOpen]);const handleSubmit=async e=>{e.preventDefault();setError('');setLoading(true);try{if(activeTab==='login'){const targetUsername=username.trim()||'admin';const targetPwd=password.trim()||'admin123';const res=await window.SonicAPI.login(targetUsername,targetPwd);localStorage.setItem('sonic_token',res.access_token);localStorage.setItem('sonic_user',JSON.stringify(res.user));if(res.user&&res.user.must_change_password){setOldPassword(targetPwd);}onSuccess(res.user,res.access_token);}else if(activeTab==='register'){const res=await window.SonicAPI.register(username.trim(),email.trim(),password.trim());localStorage.setItem('sonic_token',res.access_token);localStorage.setItem('sonic_user',JSON.stringify(res.user));onSuccess(res.user,res.access_token);}else if(activeTab==='force_change'){const res=await window.SonicAPI.changePassword(oldPassword.trim(),newPassword.trim());localStorage.setItem('sonic_token',res.access_token);const user=JSON.parse(localStorage.getItem('sonic_user')||'{}');user.must_change_password=false;localStorage.setItem('sonic_user',JSON.stringify(user));onSuccess(user,res.access_token);}}catch(err){setError(err.message||(activeTab==='login'?'Tài khoản hoặc mật khẩu không chính xác. 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-const[pmCarlaPathInput,setPmCarlaPathInput]=React.useState('');// D7: trạng thái Native Bridge (query khi mở modal) — badge header.
+const[pmSfExpanded,setPmSfExpanded]=React.useState({});const[pmSfInstruments,setPmSfInstruments]=React.useState({});const[pmSfLoading,setPmSfLoading]=React.useState({});// D7: trạng thái Native Bridge (query khi mở modal) — badge header.
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@@ -534,12 +515,7 @@ await openPluginPicker();return;}catch(e){// 4) Cuối cùng: prompt nhập tay
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 // qua API soundfont-instruments/{id} → hiển thị nút "Chèn vào Synth".
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-// biến môi trường PATH nên heuristic không tìm thấy → user tự chọn thư mục
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-// không cần hộp thoại chọn thư mục.
-const saveCarlaInput=async()=>{const p=(pmCarlaPathInput||'').trim();if(!p){showToast('Nhập đường dẫn thư mục chứa carla.exe','warning');return;}try{const r=await window.SonicAPI.setCarlaPath(p);if(r&&r.success&&r.carla_path){window.SonicRuntime.capabilities=r;document.documentElement.dataset.carla=r.features&&r.features.carla_local?'1':'0';setPmCarlaVersion(v=>v+1);setPmCarlaPathInput('');showToast('Đã lưu Carla: '+r.carla_path,'success');}else{showToast('Không tìm thấy carla.exe trong đường dẫn đã nhập','error');}}catch(err){showToast('Lỗi: '+(err.message||err),'error');}};// Lưu dirs (user override) + scan cả 2 thư mục → refresh list + catalog.
+const toggleSfInstruments=async sf=>{const baseId=String(sf.id||'').replace('sf_','');setPmSfExpanded(prev=>({...prev,[baseId]:!prev[baseId]}));if(!pmSfInstruments[baseId]&&!pmSfLoading[baseId]){setPmSfLoading(prev=>({...prev,[baseId]:true}));try{const r=await window.SonicAPI.listSoundfontInstruments(baseId);setPmSfInstruments(prev=>({...prev,[baseId]:r&&r.presets||[]}));}catch(e){setPmSfInstruments(prev=>({...prev,[baseId]:[]}));}finally{setPmSfLoading(prev=>({...prev,[baseId]:false}));}}};// Lưu dirs (user override) + scan cả 2 thư mục → refresh list + catalog.
 // dirsOverride: mảng dirs mới nhất (fix stale-closure: setTimeout giữ
 // pmDirs cũ nên add/remove xong tự scan lại vẫn lưu dir cũ).
 const saveAndScanDirs=async dirsOverride=>{const dirs=dirsOverride||pmDirs;setPmScanning(true);setPmScanResult('');setPmScanData(null);try{await window.SonicAPI.savePluginDirs({plugin_dirs:dirs});const scan=await window.SonicAPI.scanPluginDirs();setPmScanData({vst_found:scan.vst_found||[],soundfonts:scan.soundfonts||[]});const data=await window.SonicAPI.listPlugins();setLocalData(data);try{const cat=await window.SonicAPI.getSoundfontCatalog();window.__soundfontCatalog=cat;}catch(_){}setPmScanResult(`VST: ${scan.vst_count||0} | SoundFonts: ${scan.soundfont_count||0}`);showToast(`Scan xong: ${scan.vst_count||0} VST, ${scan.soundfont_count||0} SoundFonts.`,'success');}catch(err){setPmScanResult('Scan failed: '+(err.message||err));showToast('Scan failed: '+(err.message||err),'error');}finally{setPmScanning(false);}};const handleUploadSF=async e=>{const file=e.target.files?.[0];if(!file)return;setSfUploadStatus('Uploading...');try{const result=await window.SonicAPI.uploadSoundFont(file);setSfUploadStatus('Uploaded: '+result.name);// Refresh plugin list and catalog
@@ -629,7 +605,7 @@ const[loadingBackups,setLoadingBackups]=useState({});// project_id -> bool
 const[backupMaxCount,setBackupMaxCount]=useState(()=>parseInt(localStorage.getItem('sonic_backup_max_count')||'10'));const[showBackupConfig,setShowBackupConfig]=useState(false);const handleDragStart=e=>{const r=dragRef.current;r.active=true;r.startX=e.clientX;r.startY=e.clientY;r.ofsX=dragOfs.x;r.ofsY=dragOfs.y;const onMove=ev=>{if(!r.active)return;setDragOfs({x:r.ofsX+ev.clientX-r.startX,y:r.ofsY+ev.clientY-r.startY});};const onUp=()=>{r.active=false;document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};useEffect(()=>{if(isOpen){fetchProfile();if(activeTab==='projects')fetchProjects();if(activeTab==='files')fetchFiles();}},[isOpen,activeTab]);const fetchProfile=async()=>{try{const data=await window.SonicAPI.getProfile();setProfile(data);}catch(e){setError(e.message||'Không thể tải thông tin profile');}};const fetchProjects=async()=>{setLoadingProjects(true);try{const data=await window.SonicAPI.listCloudProjects();setProjectsList(data||[]);}catch(e){showToast(e.message||'Không thể tải danh sách dự án','error');}finally{setLoadingProjects(false);}};const fetchFiles=async()=>{setLoadingFiles(true);try{const activeFileIds=tracks.map(t=>t.serverFileId).filter(Boolean);const data=await window.SonicAPI.listMyFiles(activeFileIds);setFilesList(data||[]);}catch(e){showToast(e.message||'Không thể tải danh sách tệp tin','error');}finally{setLoadingFiles(false);}};const fetchBackups=async projectId=>{setLoadingBackups(prev=>({...prev,[projectId]:true}));try{const data=await window.SonicAPI.listBackups(projectId);setBackupsMap(prev=>({...prev,[projectId]:data||[]}));}catch(e){showToast(e.message||'Không thể tải danh sách backup','error');}finally{setLoadingBackups(prev=>({...prev,[projectId]:false}));}};const handleDeleteBackup=async backupId=>{try{await window.SonicAPI.deleteBackup(backupId);setBackupsMap(prev=>{const next={...prev};Object.keys(next).forEach(pid=>{next[pid]=next[pid].filter(b=>b.id!==backupId);});return next;});fetchProjects();showToast('Đã xóa bản backup','info');}catch(e){showToast(e.message||'Lỗi xóa backup','error');}};const handleCleanupBackups=async()=>{try{const res=await window.SonicAPI.cleanupBackups(backupMaxCount);setBackupsMap({});fetchProjects();showToast(`Đã dọn dẹp ${res.deleted} bản backup cũ (giữ lại ${res.keep})`,'info');}catch(e){showToast(e.message||'Lỗi dọn dẹp backup','error');}};const handleOpenProject=async(projectId,projectName)=>{setAppWarningModal({title:"Mở dự án",message:"Bạn có muốn mở dự án này? Các thay đổi chưa lưu trên workspace hiện tại sẽ bị mất.",isAlert:false,onConfirm:async()=>{try{const proj=await window.SonicAPI.getCloudProject(projectId);const parsed=JSON.parse(proj.data_json);let restoredTracks=[];let restoredBpm=bpm;let restoredSessionTabs=[];let restoredSubTabs=[];if(parsed.main_session){const result=deserializeProjectFromSchema(parsed);restoredTracks=result.tracks;restoredBpm=result.bpm;restoredSessionTabs=result.sessionTabs;restoredSubTabs=result.subTabs;if(result.masteringSettings){setMasteringSettings(result.masteringSettings);}else{setMasteringSettings({masterConnected:false,activeModule:null,eqActive:false,imagerActive:false,maximizerActive:false,eqLowGain:1.5,eqMid1Gain:-1.0,eqMid2Gain:2.0,eqHighGain:1.8,w1:0,w2:115,w3:135,w4:150,imagerScale:'v2',maxGain:5.4,maxUpward:2.0,maxSoftClip:15,maxTransient:25,ceiling:-0.1,isBypassed:false,chain:[],compActive:false,compThreshold:-16,compRatio:3,compMakeup:0,limActive:false,limThreshold:-1.0,excActive:false,excDrive:40,rebalActive:false,rebalMid:0,rebalSide:0});}}else{restoredTracks=(parsed.tracks||[]).map(t=>{const{height:_h,...rest}=t;return{...rest,buffer:null,channelInfo:t.channelInfo||null,clips:t.clips||[],serverFileId:t.serverFileId||null};});}setTracks(restoredTracks);loadAudioBuffersForTracks(restoredTracks).catch(function(err){console.warn('loadAudioBuffersForTracks error:',err);});trackMidiChannelsRef.current={};preloadTrackInstruments(restoredTracks).catch(function(err){console.warn('preloadTrackInstruments error:',err);});setBpm(restoredBpm.toString());setSelectedTrackId(restoredTracks[0]?.id||'1');setProjectName(proj.name);setCurrentProjectId(proj.id);if(restoredSessionTabs.length>0){setSessionTabs(restoredSessionTabs);}if(restoredSubTabs.length>0){setSubTabs(restoredSubTabs);}localStorage.setItem('sonic_project_name',proj.name);localStorage.setItem('sonic_project_id',proj.id);showToast(`Đã nạp dự án "${proj.name}" thành công!`,"success");}catch(e){showToast(e.message||"Lỗi khi nạp dự án","error");}}});};const handleDeleteProject=async(projectId,e)=>{e.stopPropagation();setConfirmModal({title:"Xóa dự án Cloud",message:"Bạn có chắc chắn muốn xóa dự án này khỏi Cloud? Hành động này không thể hoàn tác.",onConfirm:async()=>{try{await window.SonicAPI.deleteCloudProject(projectId);showToast("Đã xóa dự án thành công!","success");fetchProjects();fetchProfile();}catch(err){showToast(err.message||"Lỗi khi xóa dự án","error");}}});};const handleDeleteFile=async fileId=>{if(!confirm(`Bạn có chắc chắn muốn xóa tệp tin ${fileId}?`))return;try{await window.SonicAPI.deleteMyFile(fileId);showToast("Đã xóa tệp tin thành công!","success");fetchFiles();fetchProfile();}catch(err){showToast(err.message||"Lỗi khi xóa tệp tin","error");}};const handleCleanUnusedFiles=async()=>{const unusedFiles=filesList.filter(f=>!f.is_in_use);if(unusedFiles.length===0){showToast("Không có tập tin rác nào để dọn dẹp.","info");return;}if(!confirm(`Bạn có chắc chắn muốn xóa tất cả ${unusedFiles.length} tập tin rác để giải phóng dung lượng?`))return;let successCount=0;for(const file of unusedFiles){try{await window.SonicAPI.deleteMyFile(file.file_id);successCount++;}catch(e){console.error("Lỗi xóa file rác: ",file.file_id,e);}}showToast(`Đã dọn dẹp thành công ${successCount}/${unusedFiles.length} tập tin rác!`,"success");fetchFiles();fetchProfile();};const handleChangePassword=async e=>{e.preventDefault();setMsg('');setError('');setLoading(true);try{const res=await window.SonicAPI.changePassword(oldPassword,newPassword);setMsg(res.message||'Đổi mật khẩu thành công!');setOldPassword('');setNewPassword('');}catch(err){setError(err.message||'Lỗi khi đổi mật khẩu');}finally{setLoading(false);}};const modalStyle={left:`calc(50% + ${dragOfs.x}px)`,top:`calc(50% + ${dragOfs.y}px)`,transform:'translate(-50%, -50%)'};return/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",{key:"backdrop",className:"fixed inset-0 z-40 bg-black/70 backdrop-blur-sm",onClick:onClose}),confirmModal&&/*#__PURE__*/React.createElement("div",{key:"confirm-overlay",className:"fixed 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Date(b.created_at*1000).toLocaleString()}`)]),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();handleDeleteBackup(b.id);},className:"px-1.5 py-0.5 bg-rose-950 hover:bg-rose-900 text-rose-300 rounded text-[9px] border border-rose-900 ml-2 shrink-0"},"XÓA")])))])])))])]:activeTab==='files'?[/*#__PURE__*/React.createElement("div",{key:"cleanup-header",className:"flex items-center justify-between bg-zinc-900/60 p-2.5 rounded border border-zinc-800 text-xs shrink-0 mb-3"},[/*#__PURE__*/React.createElement("span",{className:"text-zinc-400 text-[10px]"},"💡 Các tập tin không dùng trong dự án nào sẽ được đánh dấu 'Không dùng' và có thể xóa để giải phóng dung lượng."),/*#__PURE__*/React.createElement("button",{onClick:handleCleanUnusedFiles,className:"px-2.5 py-1 bg-rose-700 hover:bg-rose-600 text-white rounded font-bold text-[10px] uppercase flex items-center gap-1"},"🧹 Dọn dẹp tệp rác")]),loadingFiles?/*#__PURE__*/React.createElement("div",{key:"loading",className:"text-center py-8 text-xs text-zinc-500"},"Đang tải danh sách tập tin..."):filesList.length===0?/*#__PURE__*/React.createElement("div",{key:"empty",className:"text-center py-8 text-xs text-zinc-500"},"Chưa có tập tin nào tải lên hoặc tạo ra."):/*#__PURE__*/React.createElement("div",{key:"list",className:"space-y-1.5"},[filesList.map(file=>/*#__PURE__*/React.createElement("div",{key:file.file_id,className:"flex items-center justify-between p-3 bg-[#1e1e1e] rounded border border-zinc-800 text-xs"},[/*#__PURE__*/React.createElement("div",{key:"meta",className:"max-w-[70%]"},[/*#__PURE__*/React.createElement("div",{className:"font-semibold text-slate-300 truncate"},file.original_name||file.file_id),/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500 mt-0.5"},`Loại: ${file.type} | Dung lượng: ${file.size_mb} MB | Tạo lúc: ${new Date(file.created_at*1000).toLocaleString()}`)]),/*#__PURE__*/React.createElement("div",{key:"actions",className:"flex items-center gap-2"},[file.is_in_use?/*#__PURE__*/React.createElement("span",{className:"px-2 py-0.5 bg-emerald-950 text-emerald-400 border border-emerald-900 rounded text-[9px] uppercase font-bold font-mono"},"Đang dùng"):/*#__PURE__*/React.createElement("span",{className:"px-2 py-0.5 bg-zinc-850 text-zinc-400 border border-zinc-700 rounded text-[9px] uppercase font-bold font-mono"},"Không dùng"),!file.is_in_use&&/*#__PURE__*/React.createElement("button",{onClick:()=>handleDeleteFile(file.file_id),className:"px-2 py-0.5 bg-rose-950 hover:bg-rose-900 text-rose-300 rounded font-semibold text-[10px] border border-rose-900"},"Xóa")])]))])]:null)));};const SaveProjectModal=({isOpen,onClose,onSaveCloud,onSaveLocal,projectName})=>{if(!isOpen)return null;const[name,setName]=useState(projectName||'');const[saveType,setSaveType]=useState(localStorage.getItem('sonic_token')?'cloud':'local');const[cloudProjects,setCloudProjects]=useState([]);const[loading,setLoading]=useState(false);const[selectedExisting,setSelectedExisting]=useState(null);const[confirmOverwriteProject,setConfirmOverwriteProject]=useState(null);React.useEffect(function(){if(!isOpen)return;if(saveType==='cloud'&&window.SonicAPI&&window.SonicAPI.listCloudProjects){setLoading(true);window.SonicAPI.listCloudProjects().then(function(data){setCloudProjects(data||[]);}).catch(function(){setCloudProjects([]);}).finally(function(){setLoading(false);});}},[isOpen,saveType]);const handleSubmit=e=>{e.preventDefault();if(!name.trim())return;var matched=null;for(var i=0;i<cloudProjects.length;i++){if(cloudProjects[i].name===name.trim()){matched=cloudProjects[i];break;}}if(matched){setConfirmOverwriteProject(matched);}else{if(saveType==='cloud'){onSaveCloud(name.trim(),null);onClose();}else{onSaveLocal(name.trim());onClose();}}};if(confirmOverwriteProject){return React.createElement("div",{className:"fixed inset-0 z-50 flex items-center justify-center bg-black/70 backdrop-blur-sm"},React.createElement("div",{className:"bg-[#262626] border border-[#383838] rounded-lg shadow-2xl p-5 max-w-sm w-full text-slate-200"},React.createElement("h4",{className:"text-sm font-bold text-amber-400 mb-2"},"Ghi \u0111\u00E8 d\u1EF1 \u00E1n"),React.createElement("p",{className:"text-xs text-slate-300 mb-4"},"D\u1EF1 \u00E1n \"",confirmOverwriteProject.name,"\" \u0111\u00E3 t\u1ED3n t\u1EA1i tr\u00EAn Cloud. B\u1EA1n c\u00F3 ch\u1EAFc ch\u1EAFn mu\u1ED1n ghi \u0111\u00E8 n\u00F3 kh\u00F4ng?"),React.createElement("div",{className:"flex justify-end gap-2"},React.createElement("button",{type:"button",onClick:function(){setConfirmOverwriteProject(null);},className:"px-3 py-1.5 bg-zinc-700 hover:bg-zinc-600 text-slate-300 rounded text-xs font-semibold"},"Quay l\u1EA1i"),React.createElement("button",{type:"button",onClick:function(){setConfirmOverwriteProject(null);onSaveCloud(name.trim(),confirmOverwriteProject.id);onClose();},className:"px-3 py-1.5 bg-rose-700 hover:bg-rose-600 text-white rounded text-xs font-semibold"},"X\u00E1c nh\u1EADn ghi \u0111\u00E8"))));}var filtered=cloudProjects.filter(function(p){return p.name.toLowerCase().includes(name.toLowerCase());});return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-50 flex items-center justify-center bg-black/70 backdrop-blur-sm"},/*#__PURE__*/React.createElement("div",{className:"bg-[#262626] border border-[#383838] rounded-xl shadow-2xl w-full max-w-lg p-6 text-slate-200"},/*#__PURE__*/React.createElement("h3",{className:"text-sm font-bold text-teal-400 mb-4 uppercase"},"L\u01B0u d\u1EF1 \u00E1n"),/*#__PURE__*/React.createElement("form",{onSubmit:handleSubmit,className:"space-y-4"},[/*#__PURE__*/React.createElement("div",{key:"type-block"},[/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-2 gap-2 text-xs"},[/*#__PURE__*/React.createElement("button",{key:"btn-cloud",type:"button",onClick:function(){setSaveType('cloud');setSelectedExisting(null);},className:"py-2 rounded border flex flex-col items-center gap-1 font-semibold transition "+(saveType==='cloud'?'bg-teal-950/60 border-teal-500 text-teal-300':'bg-zinc-800 border-zinc-700 hover:bg-zinc-750 text-zinc-400')},[/*#__PURE__*/React.createElement("span",{key:"title"},"\u2601\uFE0F L\u01B0u Cloud"),/*#__PURE__*/React.createElement("span",{key:"desc",className:"text-[9px] font-normal text-zinc-500"},"L\u01B0u l\u00EAn server")]),/*#__PURE__*/React.createElement("button",{key:"btn-local",type:"button",onClick:function(){setSaveType('local');setSelectedExisting(null);},className:"py-2 rounded border flex flex-col items-center gap-1 font-semibold transition "+(saveType==='local'?'bg-teal-950/60 border-teal-500 text-teal-300':'bg-zinc-800 border-zinc-700 hover:bg-zinc-750 text-zinc-400')},[/*#__PURE__*/React.createElement("span",{key:"title"},"\U0001F5C2\uFE0F L\u01B0u Local"),/*#__PURE__*/React.createElement("span",{key:"desc",className:"text-[9px] font-normal text-zinc-500"},"L\u01B0u xu\u1ED1ng t\u1EC7p .sfs")])])]),/*#__PURE__*/React.createElement("div",{key:"name-block"},[/*#__PURE__*/React.createElement("label",{className:"block text-[10px] text-zinc-400 uppercase font-bold mb-1"},"T\u00EAn d\u1EF1 \u00E1n"),/*#__PURE__*/React.createElement("input",{key:"name-input",type:"text",placeholder:"Nh\u1EADp t\u00EAn d\u1EF1 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p-6 text-slate-200"},React.createElement("h3",{className:"text-sm font-bold text-teal-400 mb-4 uppercase"},"Mở dự án"),React.createElement("div",{className:"grid grid-cols-2 gap-2 text-xs mb-4"},[React.createElement("button",{key:"cloud-tab",type:"button",onClick:function(){setTab('cloud');},className:"py-2 rounded border flex flex-col items-center gap-1 font-semibold transition "+(tab==='cloud'?'bg-teal-950/60 border-teal-500 text-teal-300':'bg-zinc-800 border-zinc-700 hover:bg-zinc-750 text-zinc-400')},[React.createElement("span",{key:"t"},"☁️ Cloud"),React.createElement("span",{key:"d",className:"text-[9px] font-normal text-zinc-500"},"Dự án trên server")]),React.createElement("button",{key:"local-tab",type:"button",onClick:function(){setTab('local');},className:"py-2 rounded border flex flex-col items-center gap-1 font-semibold transition "+(tab==='local'?'bg-teal-950/60 border-teal-500 text-teal-300':'bg-zinc-800 border-zinc-700 hover:bg-zinc-750 text-zinc-400')},[React.createElement("span",{key:"t"},"💾 Local"),React.createElement("span",{key:"d",className:"text-[9px] font-normal text-zinc-500"},"Tập tin .sfs trên máy")])]),tab==='cloud'?React.createElement("div",{className:"space-y-1.5 max-h-64 overflow-y-auto"},loading?[React.createElement("div",{key:"l",className:"text-center py-8 text-xs text-zinc-500"},"Đang tải danh sách dự án...")]:projects.length===0?[React.createElement("div",{key:"e",className:"text-center py-8 text-xs text-zinc-500"},"Bạn chưa có dự án nào trên Cloud.")]:projects.map(function(p){return React.createElement("div",{key:p.id,onClick:function(){onOpenCloud(p.id,p.name);},className:"flex items-center justify-between p-3 bg-[#1e1e1e] hover:bg-zinc-800 rounded border border-zinc-800 transition cursor-pointer text-xs group"},[React.createElement("div",{key:"meta"},[React.createElement("div",{className:"font-bold text-slate-200 group-hover:text-teal-400"},p.name),React.createElement("div",{className:"text-[10px] text-zinc-500 mt-0.5"},"Dung lượng: "+(p.size_mb||0)+" MB | Cập nhật: "+new Date((p.updated_at||0)*1000).toLocaleString())]),React.createElement("button",{onClick:function(e){e.stopPropagation();onOpenCloud(p.id,p.name);},className:"px-2.5 py-1 bg-teal-800/80 hover:bg-teal-700 text-teal-200 rounded font-semibold text-[10px]"},"MỞ")]);})):React.createElement("div",{className:"py-4 text-center text-xs text-zinc-400 space-y-3"},[React.createElement("div",{key:"d",className:"text-zinc-500"},"Chọn tệp .sfs để mở dự án từ Local."),React.createElement("button",{key:"b",onClick:function(){onOpenLocal();},className:"px-4 py-2 bg-teal-600 hover:bg-teal-500 text-white rounded font-semibold text-xs transition"},"Chọn tệp .sfs ...")]),React.createElement("div",{className:"flex justify-end gap-2 text-xs mt-4 pt-3 border-t border-zinc-800"},React.createElement("button",{type:"button",onClick:onClose,className:"px-3 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Dùng AI Prompt Generator (nút ✨) để sinh MIDI/ý tưởng; AI MIDI Preset Manager để lưu preset.'},{title:'💾 Lưu & Xuất',body:'Ctrl+S lưu project (cloud/temp), Ctrl+Shift+S Save As. Export WAV qua nút Export — chọn vùng, format, bitrate rồi Render.'},{title:'⌨️ Phím tắt',body:'Space: Play/Pause · /: Stop · Ctrl+Z/Y: Undo/Redo · Ctrl+C/X/V: Copy/Cut/Paste · Ctrl+S: Save · Ctrl+N: New · S: Split · Ctrl+E: Edit in new tab · Ctrl+wheel: zoom timeline'}]:[{title:'🚀 Quick start',body:'Press Space to Play/Pause. Press / to stop. Use Record (●) to capture audio/MIDI. Add tracks from the Track menu or the "+ Add Track" button.'},{title:'🎹 MIDI & ARM',body:'Enable the red ARM button on a track to receive keys from a MIDI keyboard. Go to Tools → MIDI Devices to pick your device. When ARM + key press, preview audio plays and the VU meter animates for the note length.'},{title:'🎼 Piano Roll',body:'Double-click a MIDI item to open the Piano Roll. Use Ctrl+scroll or +/− buttons to zoom. Click to draw notes, drag to move, Ctrl+drag to copy. Shortcuts: C (draw), E (erase), Space (listen).'},{title:'🎛️ FX & Master',body:'Select a track → FX button to open the FX Rack (EQ, compressor...). Press the PWR button on the Master to open the Mastering Panel: 4-band EQ, compressor, limiter — all realtime.'},{title:'🧪 SoundFont & VST',body:'Tools → Plugin Manager scans SoundFonts (.sf2/.sf3) and VSTi. MIDI tracks use SoundFonts as instruments — pick one from the Synth button on the track.'},{title:'🤖 AI',body:'Tools → Config AI Providers to set up APIs (OpenAI, Gemini, Ollama...). Use the AI Prompt Generator (✨) to create MIDI/ideas; AI MIDI Preset Manager stores presets.'},{title:'💾 Save & Export',body:'Ctrl+S saves the project (cloud/temp), Ctrl+Shift+S Save As. 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transition"},"Đóng")))),showGeneratorModal?/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-[60] flex items-center justify-center bg-black/80 p-4",onClick:e=>{if(e.target===e.currentTarget){refreshPresets();setShowGeneratorModal(false);}}},/*#__PURE__*/React.createElement("div",{className:"w-full h-full max-w-6xl max-h-[90vh] bg-[#13141a] border border-zinc-800 rounded-2xl shadow-2xl overflow-hidden flex flex-col"},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between p-3 border-b border-zinc-800 shrink-0"},/*#__PURE__*/React.createElement("h3",{className:"text-sm font-bold text-purple-400"},"AI Prompt Generator"),/*#__PURE__*/React.createElement("button",{onClick:()=>{refreshPresets();setShowGeneratorModal(false);},className:"text-zinc-400 hover:text-white"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("iframe",{src:"/ai-prompt-generator",className:"flex-1 w-full border-0 bg-white",title:"AI Prompt Generator"}))):null);};const PianoRollTabEditor=({st,zoom,bpm,viewportWidth,activeTracks,onClose,onUpdateNotes,onSaveNotes,setSubTabs,onPlayPause,onStop,isPlaying,playPreviewNote,showToast,midiDevices,recordingState,recTempMidiNotes,onRecord,selectedMidiInputId,onMidiInputSelect,activeMidiPitches,onInstrumentSelect,onRescheduleMidi,onSeekPlayhead,snapValue,onSnapChange,onRealtimePlay,onCopyNotes,clipboardNotes,onExportMidiAudio})=>{const[activeRollTool,setActiveRollTool]=React.useState('select');const[renderTick,setRenderTick]=React.useState(0);const[ccMode,setCcMode]=React.useState('velocity');const[rollZoom,setRollZoom]=React.useState(()=>{// Persist zoom piano roll qua phiên (localStorage) — user yêu cầu giữ kích
@@ -665,7 +641,7 @@ let bestIdx=0,bestDist=99;for(let i=0;i<7;i++){let d=Math.abs(pc-srcTones[i]);if
 React.useEffect(()=>{const handleWheelRaw=e=>{if(e.ctrlKey){e.preventDefault();const zoomFactor=e.deltaY<0?1.15:0.85;setRollZoom(prev=>Math.max(15,Math.min(250,prev*zoomFactor)));}};const container=gridScrollRef.current;if(container){container.addEventListener('wheel',handleWheelRaw,{passive:false});}return()=>{if(container){container.removeEventListener('wheel',handleWheelRaw);}};},[]);// Alt + Scroll event listener: fast‑forward playhead + play notes
 React.useEffect(()=>{const handleCanvasWheel=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const mx=e.clientX-rect.left;const my=e.clientY-rect.top;const pitch=127-Math.floor(my/NoteHeight);if(e.shiftKey){e.preventDefault();// Shift+scroll on note → change velocity of single note or all selected
 const scrollBeat=mx/pixelsPerBeat-renderBeatOffset;const clickedNote=notes.find(n=>pitch===n.pitch&&scrollBeat>=n.start_beat&&scrollBeat<n.start_beat+n.duration_beats);if(clickedNote){const delta=e.deltaY<0?0.05:-0.05;if(selectedNoteIds.length>0){setNotes(prev=>prev.map(n=>selectedNoteIds.includes(n.id)?{...n,velocity:Math.max(0.05,Math.min(1,(n.velocity||0.8)+delta))}:n));}else{setNotes(prev=>prev.map(n=>n.id===clickedNote.id?{...n,velocity:Math.max(0.05,Math.min(1,(n.velocity||0.8)+delta))}:n));}}else{// Shift+scroll on empty space → horizontal scroll
-const container=gridScrollRef.current;if(container)container.scrollLeft+=e.deltaY;}return;}if(e.altKey){e.preventDefault();const scrollDelta=e.deltaY;const beatSec=60.0/(parseInt(bpm)||120);const step=scrollDelta<0?-0.25:0.25;const currentBeat=(st.currentTime||0)/beatSec;const maxBeats=totalBeats;const newBeat=Math.max(0,Math.min(maxBeats,currentBeat+step));const newTime=newBeat*beatSec;setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:newTime}:s));if(window.SonicSF){const ctx=getAudioContext();const playing=notes.filter(n=>currentBeat<n.start_beat&&newBeat>=n.start_beat);var pvTrk=activeTracks.find(function(t){return t.id===st.trackId;});var pvCtx=resolveTrackInstrumentCtx(pvTrk,activeTracks);ensureSonicInstrument(pvCtx);playing.forEach(n=>{if(isStandaloneSf()&&isSfTrackEngine(pvCtx.synthEngine)&&!shouldRouteCarla(pvCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(pvTrk,n.pitch,n.velocity||0.8,200,undefined,'pv_'+st.trackId);return;}if(isStandaloneSf()&&isVstTrackEngine(pvCtx.synthEngine)&&!shouldRouteCarla(pvCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(pvTrk,n.pitch,n.velocity||0.8,200,undefined,'pv_'+st.trackId);return;}scheduleMidiNoteDispatch(pvTrk,n.pitch,n.velocity||0.8,200,ctx.currentTime,pvCtx.program,null,pvCtx.ch,pvCtx.synthEngine);});}}};const canvas=canvasRef.current;if(canvas){canvas.addEventListener('wheel',handleCanvasWheel,{passive:false});}return()=>{if(canvas){canvas.removeEventListener('wheel',handleCanvasWheel);}};},[notes,st.currentTime,pixelsPerBeat,st.id,totalBeats,bpm]);React.useLayoutEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=128*NoteHeight;canvas.width=viewWidth*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);// Scale highlight: rows thuộc scale (root+scale) sáng vàng; ngoài scale
+const container=gridScrollRef.current;if(container)container.scrollLeft+=e.deltaY;}return;}if(e.altKey){e.preventDefault();const scrollDelta=e.deltaY;const beatSec=60.0/(parseInt(bpm)||120);const step=scrollDelta<0?-0.25:0.25;const currentBeat=(st.currentTime||0)/beatSec;const maxBeats=totalBeats;const newBeat=Math.max(0,Math.min(maxBeats,currentBeat+step));const newTime=newBeat*beatSec;setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:newTime}:s));if(window.SonicSF){const ctx=getAudioContext();const playing=notes.filter(n=>currentBeat<n.start_beat&&newBeat>=n.start_beat);var pvTrk=activeTracks.find(function(t){return t.id===st.trackId;});var pvCtx=resolveTrackInstrumentCtx(pvTrk,activeTracks);ensureSonicInstrument(pvCtx);playing.forEach(n=>{if(isStandaloneSf()&&isSfTrackEngine(pvCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(pvTrk,n.pitch,n.velocity||0.8,200,undefined,'pv_'+st.trackId);return;}if(isStandaloneSf()&&isVstTrackEngine(pvCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(pvTrk,n.pitch,n.velocity||0.8,200,undefined,'pv_'+st.trackId);return;}scheduleMidiNoteDispatch(pvTrk,n.pitch,n.velocity||0.8,200,ctx.currentTime,pvCtx.program,null,pvCtx.ch,pvCtx.synthEngine);});}}};const canvas=canvasRef.current;if(canvas){canvas.addEventListener('wheel',handleCanvasWheel,{passive:false});}return()=>{if(canvas){canvas.removeEventListener('wheel',handleCanvasWheel);}};},[notes,st.currentTime,pixelsPerBeat,st.id,totalBeats,bpm]);React.useLayoutEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=128*NoteHeight;canvas.width=viewWidth*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);// Scale highlight: rows thuộc scale (root+scale) sáng vàng; ngoài scale
 // dim hơn (spec 20:12 — Scale Highlight & Lock)
 const scHighlight=scaleWithRoot();// Draw background rows
 for(let pitch=0;pitch<128;pitch++){const y=(127-pitch)*NoteHeight;const isBlack=[1,3,6,8,10].includes(pitch%12);const inScale=scHighlight?scHighlight.includes(pitch%12):null;ctx.fillStyle=isBlack?inScale===false?'#141419':'#1f1f25':inScale===false?'#1b1b20':inScale===true?'#2c2a1e':'#25252a';ctx.fillRect(0,y,viewWidth,NoteHeight);ctx.strokeStyle='#2d2d35';ctx.lineWidth=0.5;ctx.beginPath();ctx.moveTo(0,y+NoteHeight);ctx.lineTo(viewWidth,y+NoteHeight);ctx.stroke();}// Draw snap lines
@@ -691,7 +667,7 @@ React.useEffect(function(){setFocusItemId(st.target_id);},[st.id,st.target_id]);
 if(e.button===2){e.preventDefault();const clickedNote=notes.find(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beat<n.start_beat+n.duration_beats;});if(clickedNote){pushToUndo(notes);setNotes(prev=>prev.filter(n=>n.id!==clickedNote.id));setSelectedNoteIds(prev=>prev.filter(id=>id!==clickedNote.id));swallowContextMenuRef.current=true;showToast('Đã xóa nốt!','info');}else{rightClickDragRef.current={active:true,startX:e.clientX,startY:e.clientY};}return;}if(e.button!==0)return;// Only handle left click
 // Check if clicking on an existing note
 const clickedNoteIdx=notes.findIndex(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beat<n.start_beat+n.duration_beats;});// Click on note → play note with SoundFont
-if(clickedNoteIdx!==-1&&!e.ctrlKey&&!e.shiftKey&&!e.altKey){if(window.SonicSF){const ctx=getAudioContext();var clTrk=activeTracks.find(function(t){return t.id===st.trackId;});var clCtx=resolveTrackInstrumentCtx(clTrk,activeTracks);ensureSonicInstrument(clCtx);if(isStandaloneSf()&&isSfTrackEngine(clCtx.synthEngine)&&!shouldRouteCarla(clCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(clTrk,notes[clickedNoteIdx].pitch,notes[clickedNoteIdx].velocity||0.8,300,undefined,'pv_'+st.trackId);}else if(isStandaloneSf()&&isVstTrackEngine(clCtx.synthEngine)&&!shouldRouteCarla(clCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(clTrk,notes[clickedNoteIdx].pitch,notes[clickedNoteIdx].velocity||0.8,300,undefined,'pv_'+st.trackId);}else{scheduleMidiNoteDispatch(clTrk,notes[clickedNoteIdx].pitch,notes[clickedNoteIdx].velocity||0.8,300,ctx.currentTime,clCtx.program,null,clCtx.ch,clCtx.synthEngine);}}}// Shift+click: toggle selection (multi-select) — user 09:30 (trước đây là
+if(clickedNoteIdx!==-1&&!e.ctrlKey&&!e.shiftKey&&!e.altKey){if(window.SonicSF){const ctx=getAudioContext();var clTrk=activeTracks.find(function(t){return t.id===st.trackId;});var clCtx=resolveTrackInstrumentCtx(clTrk,activeTracks);ensureSonicInstrument(clCtx);if(isStandaloneSf()&&isSfTrackEngine(clCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(clTrk,notes[clickedNoteIdx].pitch,notes[clickedNoteIdx].velocity||0.8,300,undefined,'pv_'+st.trackId);}else if(isStandaloneSf()&&isVstTrackEngine(clCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(clTrk,notes[clickedNoteIdx].pitch,notes[clickedNoteIdx].velocity||0.8,300,undefined,'pv_'+st.trackId);}else{scheduleMidiNoteDispatch(clTrk,notes[clickedNoteIdx].pitch,notes[clickedNoteIdx].velocity||0.8,300,ctx.currentTime,clCtx.program,null,clCtx.ch,clCtx.synthEngine);}}}// Shift+click: toggle selection (multi-select) — user 09:30 (trước đây là
 // Ctrl+click — Ctrl giờ dành cho COPY-drag)
 if(e.shiftKey&&!e.altKey&&!e.ctrlKey){if(clickedNoteIdx!==-1){const clickedNote=notes[clickedNoteIdx];if(selectedNoteIds.includes(clickedNote.id)){setSelectedNoteIds(prev=>prev.filter(id=>id!==clickedNote.id));}else{setSelectedNoteIds(prev=>[...prev,clickedNote.id]);}return;}}// Ctrl+click NOTE + drag → COPY nhanh nhóm notes/note đến vị trí mới
 // (cùng pitch ban đầu; drag đổi vị trí + pitch) — user 09:30
@@ -706,7 +682,7 @@ setFocusItemId(st.target_id);const clickedNote=notes[clickedNoteIdx];let nextSel
 if(!e.ctrlKey&&!e.shiftKey&&!e.altKey){var ghostHit=null;for(var gi=0;gi<ghostLayers.length;gi++){var gl=ghostLayers[gi];if(!gl.isSameTrack||!gl.notes)continue;for(var gn=0;gn<gl.notes.length;gn++){var gnote=gl.notes[gn];if(pitch===gnote.pitch&&beat>=gnote.relative_start_beat&&beat<gnote.relative_start_beat+(gnote.duration_beats||1)){ghostHit=gnote;break;}}if(ghostHit)break;}if(ghostHit){setFocusItemId(ghostHit.item_id||st.target_id);if(ghostHit.item_id&&ghostHit.item_id!==st.target_id){handleSwitchMidiItem(ghostHit.item_id);}return;}}// Chord stamp mode: click canvas → stamp full chord shape (spec 20:12)
 if(chordStampMode){const start=getSnapBeat(beat,snapValue);applyChordStamp(start,snapToScaleRef.current?snapPitchToScale(pitch,scaleWithRoot()):pitch);return;}// Click on empty space with pen tool: DRAW a new note (brush mode with visitedPitches)
 pushToUndo(notes);const start=getSnapBeat(beat,snapValue);const initialDur=lastNoteDurationRef.current||getSnapDuration(snapValue);const noteId='note_'+Date.now()+Math.random().toString(36).substr(2,5);const newNote={id:noteId,pitch:snapToScaleRef.current?snapPitchToScale(pitch,selectedScaleRef.current):pitch,start_beat:start,duration_beats:initialDur,velocity:brushVelocityRef.current,pan:0.0};setNotes(prev=>[...prev,newNote]);setSelectedNoteIds([noteId]);setDraggedNote({mode:'draw',idx:-1,startOffsetBeat:start,startOffsetPitch:snapToScaleRef.current?snapPitchToScale(pitch,selectedScaleRef.current):pitch,drawNoteId:noteId,drawDuration:initialDur,initialBeat:start,initialPitch:snapToScaleRef.current?snapPitchToScale(pitch,selectedScaleRef.current):pitch,noteStartBeats:[start],lastDrawnPitch:snapToScaleRef.current?snapPitchToScale(pitch,selectedScaleRef.current):pitch});// Play the note with SoundFont - stop previous preview first
-if(previewNodesRef.current){try{previewNodesRef.current.osc.stop();}catch(e){}try{previewNodesRef.current.osc.disconnect();}catch(e){}try{previewNodesRef.current.gain.disconnect();}catch(e){}previewNodesRef.current=null;}var dwTrk=activeTracks.find(function(t){return t.id===st.trackId;});var dwCh=dwTrk?assignTrackMidiChannel(dwTrk,activeTracks):0;var dwPitch=snapToScaleRef.current?snapPitchToScale(pitch,selectedScaleRef.current):pitch;var dwDurMs=Math.max(100,Math.round(initialDur*(60/bpm)*1000));if(isStandaloneSf()&&isSfTrackEngine(dwTrk&&dwTrk.synth_engine)&&!shouldRouteCarla(dwTrk&&dwTrk.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(dwTrk,dwPitch,brushVelocityRef.current||0.8,dwDurMs,undefined,'pvdraw_'+st.trackId);}else if(isStandaloneSf()&&isVstTrackEngine(dwTrk&&dwTrk.synth_engine)&&!shouldRouteCarla(dwTrk&&dwTrk.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(dwTrk,dwPitch,brushVelocityRef.current||0.8,dwDurMs,undefined,'pvdraw_'+st.trackId);}else if(window.SonicSF&&window.SonicSF.playNote){const ctx=getAudioContext();// playNote (FluidSynth — nhạc cụ THẬT của track). _playNoteFallback chỉ
+if(previewNodesRef.current){try{previewNodesRef.current.osc.stop();}catch(e){}try{previewNodesRef.current.osc.disconnect();}catch(e){}try{previewNodesRef.current.gain.disconnect();}catch(e){}previewNodesRef.current=null;}var dwTrk=activeTracks.find(function(t){return t.id===st.trackId;});var dwCh=dwTrk?assignTrackMidiChannel(dwTrk,activeTracks):0;var dwPitch=snapToScaleRef.current?snapPitchToScale(pitch,selectedScaleRef.current):pitch;var dwDurMs=Math.max(100,Math.round(initialDur*(60/bpm)*1000));if(isStandaloneSf()&&isSfTrackEngine(dwTrk&&dwTrk.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(dwTrk,dwPitch,brushVelocityRef.current||0.8,dwDurMs,undefined,'pvdraw_'+st.trackId);}else if(isStandaloneSf()&&isVstTrackEngine(dwTrk&&dwTrk.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(dwTrk,dwPitch,brushVelocityRef.current||0.8,dwDurMs,undefined,'pvdraw_'+st.trackId);}else if(window.SonicSF&&window.SonicSF.playNote){const ctx=getAudioContext();// playNote (FluidSynth — nhạc cụ THẬT của track). _playNoteFallback chỉ
 // là oscillator beep (sai âm với percussion/soundfont — user: note vẽ
 // mới nghe nhạc cụ track trước).
 scheduleMidiNoteDispatch(dwTrk,dwPitch,brushVelocityRef.current||0.8,dwDurMs,ctx.currentTime,dwTrk?dwTrk.instrumentProgram:undefined,null,dwCh,dwTrk?dwTrk.synth_engine:undefined);}}};const handleGridMouseMove=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat-renderBeatOffset;const pitch=127-Math.floor(y/NoteHeight);if(selectionMarquee){const snappedBeat=getSnapBeat(beat,snapValue);const marquee={...selectionMarquee,currentBeat:snappedBeat,currentPitch:pitch};setSelectionMarquee(marquee);const minBeat=Math.min(marquee.startBeat,marquee.currentBeat);const maxBeat=Math.max(marquee.startBeat,marquee.currentBeat);const minPitch=Math.min(marquee.startPitch,marquee.currentPitch);const maxPitch=Math.max(marquee.startPitch,marquee.currentPitch);const insideIds=notes.filter(n=>{const withinPitch=n.pitch>=minPitch&&n.pitch<=maxPitch;if(!withinPitch)return false;const noteEnd=n.start_beat+n.duration_beats;if(marquee.startBeat<=marquee.currentBeat){// Left to right: select if any overlap
@@ -714,10 +690,9 @@ return n.start_beat<=maxBeat&&noteEnd>=minBeat;}else{// Right to left: select on
 return n.start_beat>=minBeat&&noteEnd<=maxBeat;}}).map(n=>n.id);setSelectedNoteIds(insideIds);return;}// Right-click drag → erase sweep
 const rc=rightClickDragRef.current;if(rc.active&&(Math.abs(e.clientX-rc.startX)>5||Math.abs(e.clientY-rc.startY)>5)){rc.active=false;swallowContextMenuRef.current=true;notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));setDraggedNote({mode:'erase_sweep',visitedPitches:[]});return;}if(!draggedNote){let foundIdx=-1;for(let i=0;i<notes.length;i++){const n=notes[i];if(pitch===n.pitch){const noteRightBeat=n.start_beat+n.duration_beats;const pixelDist=Math.abs((noteRightBeat-beat)*pixelsPerBeat);if(pixelDist<6&&beat>=n.start_beat){foundIdx=i;break;}}}if(foundIdx!==-1){canvas.style.cursor='ew-resize';setHoveredResizeIdx(foundIdx);}else{canvas.style.cursor=activeRollTool==='eraser'?'pointer':'crosshair';setHoveredResizeIdx(-1);}return;}if(draggedNote.mode==='draw'){const snappedPitch=snapToScaleRef.current?snapPitchToScale(pitch,selectedScaleRef.current):pitch;const lastPitch=draggedNote.lastDrawnPitch!==undefined?draggedNote.lastDrawnPitch:draggedNote.startOffsetPitch;const pitchChanged=snappedPitch!==lastPitch;const noteBeats=draggedNote.noteStartBeats||[];const defaultDur=getSnapDuration(snapValue);function playDrawPreview(p,durMs){stopPreviewNote();// Đồng bộ mastering + routing SF trước khi preview draw (âm qua
 // mastering FX của main out khi chain bật)
-try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(er){}var pvTrk=activeTracks.find(function(t){return t.id===st.trackId;});var pvCtxInst=resolveTrackInstrumentCtx(pvTrk,activeTracks);if(isStandaloneSf()&&isSfTrackEngine(pvCtxInst.synthEngine)&&!shouldRouteCarla(pvCtxInst.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(pvTrk,p,brushVelocityRef.current||0.8,durMs,undefined,'pvdraw_'+st.trackId);}else if(isStandaloneSf()&&isVstTrackEngine(pvCtxInst.synthEngine)&&!shouldRouteCarla(pvCtxInst.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(pvTrk,p,brushVelocityRef.current||0.8,durMs,undefined,'pvdraw_'+st.trackId);}else if(window.SonicSF&&window.SonicSF.playNote){var pvCtx=getAudioContext();// playNote (FluidSynth — nhạc cụ THẬT). _playNoteFallback = oscillator
+try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(er){}var pvTrk=activeTracks.find(function(t){return t.id===st.trackId;});var pvCtxInst=resolveTrackInstrumentCtx(pvTrk,activeTracks);if(isStandaloneSf()&&isSfTrackEngine(pvCtxInst.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(pvTrk,p,brushVelocityRef.current||0.8,durMs,undefined,'pvdraw_'+st.trackId);}else if(isStandaloneSf()&&isVstTrackEngine(pvCtxInst.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(pvTrk,p,brushVelocityRef.current||0.8,durMs,undefined,'pvdraw_'+st.trackId);}else if(window.SonicSF&&window.SonicSF.playNote){var pvCtx=getAudioContext();// playNote (FluidSynth — nhạc cụ THẬT). _playNoteFallback = oscillator
 // beep sai âm (percussion/soundfont).
-scheduleMidiNoteDispatch(pvTrk,p,brushVelocityRef.current||0.8,durMs,pvCtx.currentTime,pvCtxInst.program,null,pvCtxInst.ch,pvCtxInst.synthEngine);previewPitchRef.current=p;}// MIDI → Carla (track VSTi + ARM + Carla local): preview realtime
-if(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoute(pvTrk&&pvTrk.synth_engine,st.isArmed)){var pvVel2=Math.round((brushVelocityRef.current||0.8)*127);window.SonicCarlaMidi.playNote(pvTrk&&pvTrk.synth_engine?pvTrk.synth_engine.midi_channel||0:0,p,pvVel2,durMs);}}if(pitchChanged){const brushIds=draggedNote.brushIds||[];if(brushIds.length>0&&noteBeats.length>0){const prevNoteId=brushIds[brushIds.length-1];const prevNoteBeat=noteBeats[noteBeats.length-1];const prevDur=Math.max(0.125,beat-prevNoteBeat);setNotes(prev=>prev.map(n=>{if(n.id!==prevNoteId)return n;return{...n,duration_beats:prevDur};}));}const newNote={id:'note_'+Date.now()+Math.random().toString(36).substr(2,8)+'_'+(noteBeats.length+1),pitch:snappedPitch,start_beat:beat,duration_beats:defaultDur,velocity:brushVelocityRef.current,pan:0.0};setNotes(prev=>[...prev,newNote]);setSelectedNoteIds(prev=>[...prev,newNote.id]);draggedNote.brushIds=[...brushIds,newNote.id];draggedNote.lastDrawnPitch=snappedPitch;draggedNote.noteStartBeats=[...noteBeats,beat];playDrawPreview(snappedPitch,Math.max(100,Math.round(defaultDur*(60/bpm)*1000)));}else{const brushIds=draggedNote.brushIds||[];const lastBrushId=brushIds.length>0?brushIds[brushIds.length-1]:draggedNote.drawNoteId;const lastNoteBeat=noteBeats.length>0?noteBeats[noteBeats.length-1]:draggedNote.startOffsetBeat;if(lastBrushId){const extDur=Math.max(0.125,beat-lastNoteBeat);setNotes(prev=>prev.map(n=>{if(n.id!==lastBrushId)return n;return{...n,duration_beats:extDur};}));playDrawPreview(snappedPitch,Math.max(100,Math.round(extDur*(60/bpm)*1000)));}}const container=gridScrollRef.current;if(container){const cr=container.getBoundingClientRect();const visTop=container.scrollTop;const visBot=visTop+container.clientHeight;const pitchPixel=(127-snappedPitch)*NoteHeight;const safeMargin=NoteHeight*2;if(pitchPixel<visTop+safeMargin){const target=Math.max(0,pitchPixel-safeMargin);if(container.scrollTop!==target)container.scrollTop=target;if(!brushAutoScrollRef.current||brushAutoScrollRef.current.direction!=='up'){if(brushAutoScrollRef.current)clearInterval(brushAutoScrollRef.current.id);brushAutoScrollRef.current={direction:'up',id:setInterval(()=>{if(gridScrollRef.current)gridScrollRef.current.scrollTop=Math.max(0,gridScrollRef.current.scrollTop-Math.max(1,Math.floor(NoteHeight*0.5)));},16)};}}else if(pitchPixel+NoteHeight>visBot-safeMargin){const target=Math.min(container.scrollHeight-container.clientHeight,pitchPixel-container.clientHeight+safeMargin+NoteHeight);if(container.scrollTop!==target)container.scrollTop=target;if(!brushAutoScrollRef.current||brushAutoScrollRef.current.direction!=='down'){if(brushAutoScrollRef.current)clearInterval(brushAutoScrollRef.current.id);brushAutoScrollRef.current={direction:'down',id:setInterval(()=>{if(gridScrollRef.current)gridScrollRef.current.scrollTop=Math.min(gridScrollRef.current.scrollHeight-gridScrollRef.current.clientHeight,gridScrollRef.current.scrollTop+Math.max(1,Math.floor(NoteHeight*0.5)));},16)};}}else{if(brushAutoScrollRef.current){clearInterval(brushAutoScrollRef.current.id);brushAutoScrollRef.current=null;}}}return;}if(draggedNote.mode==='erase_sweep'){const erased=draggedNote.erasedIds||[];const target=notes.find(n=>n.pitch===pitch&&beat>=n.start_beat&&beat<n.start_beat+n.duration_beats);if(target&&!erased.includes(target.id)){draggedNote.erasedIds=[...erased,target.id];setNotes(prev=>prev.filter(n=>n.id!==target.id));setSelectedNoteIds(prev=>prev.filter(id=>id!==target.id));}return;}if(draggedNote.mode==='scale'){const newEnd=getSnapBeat(Math.max(draggedNote.firstStart+0.125,beat),snapValue);const range=draggedNote.originalEnd-draggedNote.firstStart;if(range<=0)return;const scaleFactor=Math.max(0.01,(newEnd-draggedNote.firstStart)/range);const ids=draggedNote.selectedNoteIds||[];const firstStart=draggedNote.firstStart;const notesBefore=notesBeforeDragRef.current;if(!notesBefore)return;setNotes(prev=>prev.map(n=>{if(!ids.includes(n.id))return n;const orig=notesBefore?notesBefore.find(o=>o.id===n.id):null;const origStart=orig?orig.start_beat:n.start_beat;const origDur=orig?orig.duration_beats:n.duration_beats;const relStart=origStart-firstStart;const relEnd=relStart+origDur;return{...n,start_beat:firstStart+relStart*scaleFactor,duration_beats:Math.max(0.125,relEnd*scaleFactor-relStart*scaleFactor)};}));return;}if(draggedNote.mode==='resize'){const newDuration=getSnapBeat(Math.max(0.125,beat-draggedNote.originalStart),snapValue);setNotes(prev=>prev.map((n,idx)=>{if(idx!==draggedNote.idx)return n;return{...n,duration_beats:newDuration};}));}else if(draggedNote.mode==='move'){const refOrigStart=draggedNote.clickedOriginalStartBeat;if(refOrigStart===undefined)return;const deltaBeat=getSnapBeat(beat-draggedNote.startOffsetBeat,snapValue)-refOrigStart;// Clamp so no note goes past beat 0
+scheduleMidiNoteDispatch(pvTrk,p,brushVelocityRef.current||0.8,durMs,pvCtx.currentTime,pvCtxInst.program,null,pvCtxInst.ch,pvCtxInst.synthEngine);previewPitchRef.current=p;}}if(pitchChanged){const brushIds=draggedNote.brushIds||[];if(brushIds.length>0&&noteBeats.length>0){const prevNoteId=brushIds[brushIds.length-1];const prevNoteBeat=noteBeats[noteBeats.length-1];const prevDur=Math.max(0.125,beat-prevNoteBeat);setNotes(prev=>prev.map(n=>{if(n.id!==prevNoteId)return n;return{...n,duration_beats:prevDur};}));}const newNote={id:'note_'+Date.now()+Math.random().toString(36).substr(2,8)+'_'+(noteBeats.length+1),pitch:snappedPitch,start_beat:beat,duration_beats:defaultDur,velocity:brushVelocityRef.current,pan:0.0};setNotes(prev=>[...prev,newNote]);setSelectedNoteIds(prev=>[...prev,newNote.id]);draggedNote.brushIds=[...brushIds,newNote.id];draggedNote.lastDrawnPitch=snappedPitch;draggedNote.noteStartBeats=[...noteBeats,beat];playDrawPreview(snappedPitch,Math.max(100,Math.round(defaultDur*(60/bpm)*1000)));}else{const brushIds=draggedNote.brushIds||[];const lastBrushId=brushIds.length>0?brushIds[brushIds.length-1]:draggedNote.drawNoteId;const lastNoteBeat=noteBeats.length>0?noteBeats[noteBeats.length-1]:draggedNote.startOffsetBeat;if(lastBrushId){const extDur=Math.max(0.125,beat-lastNoteBeat);setNotes(prev=>prev.map(n=>{if(n.id!==lastBrushId)return n;return{...n,duration_beats:extDur};}));playDrawPreview(snappedPitch,Math.max(100,Math.round(extDur*(60/bpm)*1000)));}}const container=gridScrollRef.current;if(container){const cr=container.getBoundingClientRect();const visTop=container.scrollTop;const visBot=visTop+container.clientHeight;const pitchPixel=(127-snappedPitch)*NoteHeight;const safeMargin=NoteHeight*2;if(pitchPixel<visTop+safeMargin){const target=Math.max(0,pitchPixel-safeMargin);if(container.scrollTop!==target)container.scrollTop=target;if(!brushAutoScrollRef.current||brushAutoScrollRef.current.direction!=='up'){if(brushAutoScrollRef.current)clearInterval(brushAutoScrollRef.current.id);brushAutoScrollRef.current={direction:'up',id:setInterval(()=>{if(gridScrollRef.current)gridScrollRef.current.scrollTop=Math.max(0,gridScrollRef.current.scrollTop-Math.max(1,Math.floor(NoteHeight*0.5)));},16)};}}else if(pitchPixel+NoteHeight>visBot-safeMargin){const target=Math.min(container.scrollHeight-container.clientHeight,pitchPixel-container.clientHeight+safeMargin+NoteHeight);if(container.scrollTop!==target)container.scrollTop=target;if(!brushAutoScrollRef.current||brushAutoScrollRef.current.direction!=='down'){if(brushAutoScrollRef.current)clearInterval(brushAutoScrollRef.current.id);brushAutoScrollRef.current={direction:'down',id:setInterval(()=>{if(gridScrollRef.current)gridScrollRef.current.scrollTop=Math.min(gridScrollRef.current.scrollHeight-gridScrollRef.current.clientHeight,gridScrollRef.current.scrollTop+Math.max(1,Math.floor(NoteHeight*0.5)));},16)};}}else{if(brushAutoScrollRef.current){clearInterval(brushAutoScrollRef.current.id);brushAutoScrollRef.current=null;}}}return;}if(draggedNote.mode==='erase_sweep'){const erased=draggedNote.erasedIds||[];const target=notes.find(n=>n.pitch===pitch&&beat>=n.start_beat&&beat<n.start_beat+n.duration_beats);if(target&&!erased.includes(target.id)){draggedNote.erasedIds=[...erased,target.id];setNotes(prev=>prev.filter(n=>n.id!==target.id));setSelectedNoteIds(prev=>prev.filter(id=>id!==target.id));}return;}if(draggedNote.mode==='scale'){const newEnd=getSnapBeat(Math.max(draggedNote.firstStart+0.125,beat),snapValue);const range=draggedNote.originalEnd-draggedNote.firstStart;if(range<=0)return;const scaleFactor=Math.max(0.01,(newEnd-draggedNote.firstStart)/range);const ids=draggedNote.selectedNoteIds||[];const firstStart=draggedNote.firstStart;const notesBefore=notesBeforeDragRef.current;if(!notesBefore)return;setNotes(prev=>prev.map(n=>{if(!ids.includes(n.id))return n;const orig=notesBefore?notesBefore.find(o=>o.id===n.id):null;const origStart=orig?orig.start_beat:n.start_beat;const origDur=orig?orig.duration_beats:n.duration_beats;const relStart=origStart-firstStart;const relEnd=relStart+origDur;return{...n,start_beat:firstStart+relStart*scaleFactor,duration_beats:Math.max(0.125,relEnd*scaleFactor-relStart*scaleFactor)};}));return;}if(draggedNote.mode==='resize'){const newDuration=getSnapBeat(Math.max(0.125,beat-draggedNote.originalStart),snapValue);setNotes(prev=>prev.map((n,idx)=>{if(idx!==draggedNote.idx)return n;return{...n,duration_beats:newDuration};}));}else if(draggedNote.mode==='move'){const refOrigStart=draggedNote.clickedOriginalStartBeat;if(refOrigStart===undefined)return;const deltaBeat=getSnapBeat(beat-draggedNote.startOffsetBeat,snapValue)-refOrigStart;// Clamp so no note goes past beat 0
 const minOrigStart=Math.min(...draggedNote.selectedNotesOffset.map(o=>o.originalStartBeat));const clampedDeltaBeat=minOrigStart+deltaBeat<0?-minOrigStart:deltaBeat;const deltaPitch=Math.round(pitch-draggedNote.startOffsetPitch);setNotes(prev=>prev.map(n=>{const offset=draggedNote.selectedNotesOffset.find(o=>o.id===n.id);if(!offset)return n;return{...n,start_beat:getSnapBeat(Math.max(0,offset.originalStartBeat+clampedDeltaBeat),snapValue),pitch:Math.max(0,Math.min(127,offset.originalPitch+deltaPitch))};}));}};const handleGridMouseUp=()=>{if(draggedNote&&draggedNote.mode==='draw'){const dn=draggedNote;const brushIds=dn.brushIds||[];const lastBrushId=brushIds.length>0?brushIds[brushIds.length-1]:dn.drawNoteId;if(lastBrushId){const lastNote=notes.find(n=>n.id===lastBrushId);if(lastNote)lastNoteDurationRef.current=lastNote.duration_beats;}}setDraggedNote(null);// Marquee (Ctrl+drag): CHỌN notes nằm trong vùng (user 09:15 — trước đây
 // chỉ vẽ highlight, không set selectedNoteIds → Ctrl+X báo "chọn notes")
 if(selectionMarquee){const minBeat=Math.min(selectionMarquee.startBeat,selectionMarquee.currentBeat);const maxBeat=Math.max(selectionMarquee.startBeat,selectionMarquee.currentBeat);const minPitch=Math.min(selectionMarquee.startPitch,selectionMarquee.currentPitch);const maxPitch=Math.max(selectionMarquee.startPitch,selectionMarquee.currentPitch);const inMarquee=notes.filter(n=>{const center=n.start_beat+n.duration_beats/2;return center>=minBeat&&center<=maxBeat&&n.pitch>=minPitch&&n.pitch<=maxPitch;});setSelectedNoteIds(inMarquee.map(n=>n.id));}setSelectionMarquee(null);rightClickDragRef.current={active:false,startX:0,startY:0};if(brushAutoScrollRef.current){clearInterval(brushAutoScrollRef.current.id);brushAutoScrollRef.current=null;}stopPreviewNote();previewPitchRef.current=null;};const handleContextMenu=e=>{e.preventDefault();if(swallowContextMenuRef.current){swallowContextMenuRef.current=false;return;}const pos={x:e.clientX,y:e.clientY,parentKey:null};scaleMenuOriginRef.current={x:pos.x,y:pos.y};setScaleMenuPos(pos);};const ccDragRef=React.useRef(null);const brushAutoScrollRef=React.useRef(null);const rightClickDragRef=React.useRef({active:false,startX:0,startY:0});const swallowContextMenuRef=React.useRef(false);// Status hint động (user 09:40): theo dõi Shift/Ctrl + mouse trong piano roll
@@ -729,14 +704,13 @@ const idxs=findCCNoteIndicesAtBeat(beat);ccDragRef.current={active:true,lastBeat
 const candidateIdxs=findCCNoteIndicesAtBeat(beat);const unpainted=candidateIdxs.filter(ci=>!painted.includes(ci));if(unpainted.length>0){const updatedNotes=notes.map((n,i)=>{if(!unpainted.includes(i))return n;if(ccMode==='pan')return{...n,pan:(val-0.5)*2.0};return{...n,velocity:val};});setNotes(updatedNotes);if(isPlaying&&onRescheduleMidi)onRescheduleMidi(updatedNotes);drag.lastPainted=[...painted,...unpainted];}};const renderKeybed=()=>{var kbTrk=activeTracks.find(function(t){return t.id===st.trackId;});var kbCtx=resolveTrackInstrumentCtx(kbTrk,activeTracks);ensureSonicInstrument(kbCtx);const keys=[];for(let pitch=127;pitch>=PITCH_START;pitch--){const isBlack=[1,3,6,8,10].includes(pitch%12);const notesArray=['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];const octave=Math.floor(pitch/12)-1;const label=`${notesArray[pitch%12]}${octave}`;const showLabel=pitch%12===0;keys.push(/*#__PURE__*/React.createElement("div",{key:pitch,style:{height:`${NoteHeight}px`},className:`w-[60px] shrink-0 border-b border-zinc-800 text-[9px] font-bold flex items-center justify-end pr-2 transition cursor-pointer ${activeMidiPitches&&activeMidiPitches.has(pitch)?'bg-emerald-500 text-white border-emerald-400':isBlack?'bg-zinc-950 text-slate-500 border-zinc-900 hover:bg-zinc-800':'bg-white text-zinc-800 border-r border-zinc-400 hover:bg-amber-100'}`,onMouseDown:e=>{e.stopPropagation();keybedMouseDownRef.current=true;try{// Đồng bộ mastering + routing SF NGAY trước khi preview — âm
 // keybed PHẢI qua mastering FX của main out khi chain đang bật
 // (trước đây phải bật/tắt power mới có tác dụng).
-try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(er){}if(window.triggerMidiVuActivity){window.triggerMidiVuActivity((st.parent_tab_id&&st.parent_tab_id.startsWith('session_')?'_sess_':'')+st.trackId,100);}const kbNative=isStandaloneSf()&&isSfTrackEngine(kbCtx.synthEngine)&&!shouldRouteCarla(kbCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const kbNativeVst=isStandaloneSf()&&isVstTrackEngine(kbCtx.synthEngine)&&!shouldRouteCarla(kbCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if(kbNative){playNativeSfNote(kbTrk,pitch,100/127,5000,undefined,'kb_'+st.trackId+'_'+pitch);}else if(kbNativeVst){playNativeVstNote(kbTrk,pitch,100/127,5000,undefined,'kb_'+st.trackId+'_'+pitch);}if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){try{if(window.__ensureBridgeProgram)window.__ensureBridgeProgram(kbTrk?kbTrk.id:0,kbCtx.program,kbCtx.synthEngine);}catch(er){}window.SonicMidiRouter.pushEvent({cmd:'NOTE_ON',channel:kbTrk?kbTrk.id:0,pitch:pitch,velocity:100/127,percussion:!!(kbCtx&&kbCtx.synthEngine&&kbCtx.synthEngine.soundfont_bank===128),live:true});}else if(window.SonicSF&&!kbNative&&!kbNativeVst){// ⚠️ FIX: giữ note theo thời gian bấm phím — durationMs lớn (5s)
+try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(er){}if(window.triggerMidiVuActivity){window.triggerMidiVuActivity((st.parent_tab_id&&st.parent_tab_id.startsWith('session_')?'_sess_':'')+st.trackId,100);}const kbNative=isStandaloneSf()&&isSfTrackEngine(kbCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const kbNativeVst=isStandaloneSf()&&isVstTrackEngine(kbCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if(kbNative){playNativeSfNote(kbTrk,pitch,100/127,5000,undefined,'kb_'+st.trackId+'_'+pitch);}else if(kbNativeVst){playNativeVstNote(kbTrk,pitch,100/127,5000,undefined,'kb_'+st.trackId+'_'+pitch);}if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){try{if(window.__ensureBridgeProgram)window.__ensureBridgeProgram(kbTrk?kbTrk.id:0,kbCtx.program,kbCtx.synthEngine);}catch(er){}window.SonicMidiRouter.pushEvent({cmd:'NOTE_ON',channel:kbTrk?kbTrk.id:0,pitch:pitch,velocity:100/127,percussion:!!(kbCtx&&kbCtx.synthEngine&&kbCtx.synthEngine.soundfont_bank===128),live:true});}else if(window.SonicSF&&!kbNative&&!kbNativeVst){// ⚠️ FIX: giữ note theo thời gian bấm phím — durationMs lớn (5s)
 // chỉ là auto-off phòng hờ; mouseup/mouseleave gọi stopNote dừng
 // NGAY (trước đây 500ms → note tự tắt giữa chừng khi giữ phím).
-window.SonicSF.playNote(pitch,100,5000,undefined,kbCtx.program,null,kbCtx.ch,kbCtx.synthEngine);}// MIDI → Carla (track VSTi + ARM + Carla local): preview realtime
-if(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoute(kbCtx.synthEngine,st.isArmed)){window.SonicCarlaMidi.noteOn(kbCtx.ch,pitch,100);if(window.__carlaKeybedTimer)clearTimeout(window.__carlaKeybedTimer);window.__carlaKeybedTimer=setTimeout(function(){window.SonicCarlaMidi.noteOff(kbCtx.ch,pitch);},650);}}catch(err){console.error('playNote error:',err);}},onMouseEnter:e=>{if(keybedMouseDownRef.current){try{if(window.triggerMidiVuActivity){window.triggerMidiVuActivity((st.parent_tab_id&&st.parent_tab_id.startsWith('session_')?'_sess_':'')+st.trackId,100);}if(isStandaloneSf()&&isSfTrackEngine(kbCtx.synthEngine)&&!shouldRouteCarla(kbCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(kbTrk,pitch,100/127,5000,undefined,'kb_'+st.trackId+'_'+pitch);}else if(isStandaloneSf()&&isVstTrackEngine(kbCtx.synthEngine)&&!shouldRouteCarla(kbCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(kbTrk,pitch,100/127,5000,undefined,'kb_'+st.trackId+'_'+pitch);}if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){try{if(window.__ensureBridgeProgram)window.__ensureBridgeProgram(kbTrk?kbTrk.id:0,kbCtx.program,kbCtx.synthEngine);}catch(er){}window.SonicMidiRouter.pushEvent({cmd:'NOTE_ON',channel:kbTrk?kbTrk.id:0,pitch:pitch,velocity:100/127,percussion:!!(kbCtx&&kbCtx.synthEngine&&kbCtx.synthEngine.soundfont_bank===128),live:true});}else if(window.SonicSF&&!(isStandaloneSf()&&(isSfTrackEngine(kbCtx.synthEngine)||isVstTrackEngine(kbCtx.synthEngine))&&!shouldRouteCarla(kbCtx.synthEngine))){// giữ note khi kéo qua phím (mouse enter) — dừng bằng mouseup/leave
-window.SonicSF.playNote(pitch,100,5000,undefined,kbCtx.program,null,kbCtx.ch,kbCtx.synthEngine);}if(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoute(kbCtx.synthEngine,st.isArmed)){window.SonicCarlaMidi.noteOn(kbCtx.ch,pitch,100);if(window.__carlaKeybedTimer)clearTimeout(window.__carlaKeybedTimer);window.__carlaKeybedTimer=setTimeout(function(){window.SonicCarlaMidi.noteOff(kbCtx.ch,pitch);},650);}}catch(err){console.error('playNote error:',err);}}},onMouseUp:()=>{keybedMouseDownRef.current=false;// Dừng note khi thả phím — tránh kẹt âm (loop liên tục) với soundfont
-try{if(isStandaloneSf()){stopNativeSfNote('kb_'+st.trackId+'_'+pitch);stopNativeVstNote('kb_'+st.trackId+'_'+pitch);}if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){window.SonicMidiRouter.pushEvent({cmd:'NOTE_OFF',channel:kbTrk?kbTrk.id:0,pitch:pitch,velocity:0,percussion:!!(kbCtx&&kbCtx.synthEngine&&kbCtx.synthEngine.soundfont_bank===128),live:true});}else if(window.SonicSF&&window.SonicSF.stopNote)window.SonicSF.stopNote(kbCtx.ch,pitch);}catch(e){}if(window.__carlaKeybedTimer){clearTimeout(window.__carlaKeybedTimer);window.__carlaKeybedTimer=null;}if(window.SonicCarlaMidi){try{window.SonicCarlaMidi.noteOff(kbCtx.ch,pitch);}catch(e){}}},onMouseLeave:()=>{if(!keybedMouseDownRef.current)return;// Kéo chuột ra khỏi phím → dừng note của phím đó
-try{if(isStandaloneSf()){stopNativeSfNote('kb_'+st.trackId+'_'+pitch);stopNativeVstNote('kb_'+st.trackId+'_'+pitch);}if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){window.SonicMidiRouter.pushEvent({cmd:'NOTE_OFF',channel:kbTrk?kbTrk.id:0,pitch:pitch,velocity:0,percussion:!!(kbCtx&&kbCtx.synthEngine&&kbCtx.synthEngine.soundfont_bank===128),live:true});}else if(window.SonicSF&&window.SonicSF.stopNote)window.SonicSF.stopNote(kbCtx.ch,pitch);}catch(e){}if(window.SonicCarlaMidi){try{window.SonicCarlaMidi.noteOff(kbCtx.ch,pitch);}catch(e){}}}},showLabel&&label));}return keys;};const handleScroll=e=>{if(keybedRef.current){keybedRef.current.scrollTop=e.currentTarget.scrollTop;}if(rulerScrollRef.current){rulerScrollRef.current.scrollLeft=e.currentTarget.scrollLeft;}if(ccWrapperRef.current){ccWrapperRef.current.scrollLeft=e.currentTarget.scrollLeft;}const el=e.currentTarget;const THRESHOLD=200;if(el.scrollLeft+el.clientWidth>=el.scrollWidth-THRESHOLD){const newBeats=rollBeatsRef.current+16;setRollBeats(newBeats);}};const handleKeybedScroll=e=>{if(gridScrollRef.current){gridScrollRef.current.scrollTop=e.currentTarget.scrollTop;}};const SCALES={"None":null,"Diatonic":{"Major":[0,2,4,5,7,9,11],"Minor":[0,2,3,5,7,8,10],"Dorian":[0,2,3,5,7,9,10],"Phrygian":[0,1,3,5,7,8,10],"Lydian":[0,2,4,6,7,9,11],"Mixolydian":[0,2,4,5,7,9,10],"Locrian":[0,1,3,5,6,8,10]},"Pentatonic":{"Major":[0,2,4,7,9],"Minor":[0,3,5,7,10],"Blues":[0,3,5,6,7,10],"Chinese":[0,2,4,7,9],"Vietnam":[0,2,6,7,10],"India":[0,2,5,7,9],"Japan":[0,2,5,7,9],"Africa":[0,3,5,7,10]},"Church":{"Dorian":[0,2,3,5,7,9,10],"Phrygian":[0,1,3,5,7,8,10],"Lydian":[0,2,4,6,7,9,11],"Mixolydian":[0,2,4,5,7,9,10]},"Jazz":{"Blues":[0,3,5,6,7,10],"Bebop":[0,2,4,5,7,9,10,11],"Diminished":[0,2,3,5,6,8,9,11]},"Asian Traditional":{"Chinese":[0,2,4,7,9],"Vietnam":[0,2,6,7,10],"Japan":[0,2,5,7,9],"India":[0,2,5,7,9],"Gamelan":[0,2,4,7,9],"Korea":[0,2,4,5,7,9]},"Middle Eastern":{"Hijaz":[0,1,4,5,7,8,11],"Nikriz":[0,1,4,5,7,8,10],"Rast":[0,2,4,5,7,8,10],"Saba":[0,1,3,4,7,8,10],"Bayati":[0,2,3,4,7,8,10]}};const[selectedScale,setSelectedScale]=React.useState(null);const selectedScaleRef=React.useRef(null);selectedScaleRef.current=selectedScale;// Root note (0-11 — C..B) — transpose scale highlight + snap (spec 20:12)
+window.SonicSF.playNote(pitch,100,5000,undefined,kbCtx.program,null,kbCtx.ch,kbCtx.synthEngine);}}catch(err){console.error('playNote error:',err);}},onMouseEnter:e=>{if(keybedMouseDownRef.current){try{if(window.triggerMidiVuActivity){window.triggerMidiVuActivity((st.parent_tab_id&&st.parent_tab_id.startsWith('session_')?'_sess_':'')+st.trackId,100);}if(isStandaloneSf()&&isSfTrackEngine(kbCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeSfNote(kbTrk,pitch,100/127,5000,undefined,'kb_'+st.trackId+'_'+pitch);}else if(isStandaloneSf()&&isVstTrackEngine(kbCtx.synthEngine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){playNativeVstNote(kbTrk,pitch,100/127,5000,undefined,'kb_'+st.trackId+'_'+pitch);}if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){try{if(window.__ensureBridgeProgram)window.__ensureBridgeProgram(kbTrk?kbTrk.id:0,kbCtx.program,kbCtx.synthEngine);}catch(er){}window.SonicMidiRouter.pushEvent({cmd:'NOTE_ON',channel:kbTrk?kbTrk.id:0,pitch:pitch,velocity:100/127,percussion:!!(kbCtx&&kbCtx.synthEngine&&kbCtx.synthEngine.soundfont_bank===128),live:true});}else if(window.SonicSF&&!(isStandaloneSf()&&(isSfTrackEngine(kbCtx.synthEngine)||isVstTrackEngine(kbCtx.synthEngine)))){// giữ note khi kéo qua phím (mouse enter) — dừng bằng mouseup/leave
+window.SonicSF.playNote(pitch,100,5000,undefined,kbCtx.program,null,kbCtx.ch,kbCtx.synthEngine);}}catch(err){console.error('playNote error:',err);}}},onMouseUp:()=>{keybedMouseDownRef.current=false;// Dừng note khi thả phím — tránh kẹt âm (loop liên tục) với soundfont
+try{if(isStandaloneSf()){stopNativeSfNote('kb_'+st.trackId+'_'+pitch);stopNativeVstNote('kb_'+st.trackId+'_'+pitch);}if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){window.SonicMidiRouter.pushEvent({cmd:'NOTE_OFF',channel:kbTrk?kbTrk.id:0,pitch:pitch,velocity:0,percussion:!!(kbCtx&&kbCtx.synthEngine&&kbCtx.synthEngine.soundfont_bank===128),live:true});}else if(window.SonicSF&&window.SonicSF.stopNote)window.SonicSF.stopNote(kbCtx.ch,pitch);}catch(e){}},onMouseLeave:()=>{if(!keybedMouseDownRef.current)return;// Kéo chuột ra khỏi phím → dừng note của phím đó
+try{if(isStandaloneSf()){stopNativeSfNote('kb_'+st.trackId+'_'+pitch);stopNativeVstNote('kb_'+st.trackId+'_'+pitch);}if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){window.SonicMidiRouter.pushEvent({cmd:'NOTE_OFF',channel:kbTrk?kbTrk.id:0,pitch:pitch,velocity:0,percussion:!!(kbCtx&&kbCtx.synthEngine&&kbCtx.synthEngine.soundfont_bank===128),live:true});}else if(window.SonicSF&&window.SonicSF.stopNote)window.SonicSF.stopNote(kbCtx.ch,pitch);}catch(e){}}},showLabel&&label));}return keys;};const handleScroll=e=>{if(keybedRef.current){keybedRef.current.scrollTop=e.currentTarget.scrollTop;}if(rulerScrollRef.current){rulerScrollRef.current.scrollLeft=e.currentTarget.scrollLeft;}if(ccWrapperRef.current){ccWrapperRef.current.scrollLeft=e.currentTarget.scrollLeft;}const el=e.currentTarget;const THRESHOLD=200;if(el.scrollLeft+el.clientWidth>=el.scrollWidth-THRESHOLD){const newBeats=rollBeatsRef.current+16;setRollBeats(newBeats);}};const handleKeybedScroll=e=>{if(gridScrollRef.current){gridScrollRef.current.scrollTop=e.currentTarget.scrollTop;}};const SCALES={"None":null,"Diatonic":{"Major":[0,2,4,5,7,9,11],"Minor":[0,2,3,5,7,8,10],"Dorian":[0,2,3,5,7,9,10],"Phrygian":[0,1,3,5,7,8,10],"Lydian":[0,2,4,6,7,9,11],"Mixolydian":[0,2,4,5,7,9,10],"Locrian":[0,1,3,5,6,8,10]},"Pentatonic":{"Major":[0,2,4,7,9],"Minor":[0,3,5,7,10],"Blues":[0,3,5,6,7,10],"Chinese":[0,2,4,7,9],"Vietnam":[0,2,6,7,10],"India":[0,2,5,7,9],"Japan":[0,2,5,7,9],"Africa":[0,3,5,7,10]},"Church":{"Dorian":[0,2,3,5,7,9,10],"Phrygian":[0,1,3,5,7,8,10],"Lydian":[0,2,4,6,7,9,11],"Mixolydian":[0,2,4,5,7,9,10]},"Jazz":{"Blues":[0,3,5,6,7,10],"Bebop":[0,2,4,5,7,9,10,11],"Diminished":[0,2,3,5,6,8,9,11]},"Asian Traditional":{"Chinese":[0,2,4,7,9],"Vietnam":[0,2,6,7,10],"Japan":[0,2,5,7,9],"India":[0,2,5,7,9],"Gamelan":[0,2,4,7,9],"Korea":[0,2,4,5,7,9]},"Middle Eastern":{"Hijaz":[0,1,4,5,7,8,11],"Nikriz":[0,1,4,5,7,8,10],"Rast":[0,2,4,5,7,8,10],"Saba":[0,1,3,4,7,8,10],"Bayati":[0,2,3,4,7,8,10]}};const[selectedScale,setSelectedScale]=React.useState(null);const selectedScaleRef=React.useRef(null);selectedScaleRef.current=selectedScale;// Root note (0-11 — C..B) — transpose scale highlight + snap (spec 20:12)
 const[scaleRoot,setScaleRoot]=React.useState(0);const scaleRootRef=React.useRef(0);scaleRootRef.current=scaleRoot;// Modal states: Arpeggiator / Strummer / Humanize (spec 20:12)
 const[arpModal,setArpModal]=React.useState(null);// { pattern, rate, octaves, gate }
 const[strumModal,setStrumModal]=React.useState(null);// { ms, direction }
@@ -748,10 +722,8 @@ const snapToScaleRef=React.useRef(true);snapToScaleRef.current=st.snapToScale!==
 const scaleWithRoot=()=>{const sc=selectedScaleRef.current;if(!sc)return null;return sc.map(s=>(s+scaleRootRef.current)%12);};const commitNotes=updated=>{setNotes(updated);if(isPlaying&&onRescheduleMidi)onRescheduleMidi(updated);};const applyArpeggiate=p=>{const sc=scaleWithRoot();const beatSec=60.0/(parseInt(bpm)||120);const rateDiv=p.rate==='1/4'?1:p.rate==='1/8'?0.5:p.rate==='1/16'?0.25:p.rate==='1/32'?0.125:1;const rateBeats=rateDiv*(p.triplet?2/3:p.dotted?1.5:1);const base=notes.filter(n=>selectedNoteIds.includes(n.id));const targets=base.length>0?base:notes;if(!targets.length)return;const chords=[];targets.forEach(n=>{const k=n.start_beat.toFixed(2);const g=chords.find(c=>c.k===k);if(g)g.notes.push(n);else chords.push({k,notes:[n]});});const result=[];const rangeNotes=[];// arpeggiated sequence (pitch per step)
 chords.forEach(ch=>{const sorted=ch.notes.slice().sort((a,b)=>a.pitch-b.pitch);const notesOut=[];for(let o=0;o<p.octaves;o++){sorted.forEach(n=>{const octPitch=n.pitch+o*12;if(!rangeNotes.includes(octPitch))rangeNotes.push(octPitch);});}const seq=[];rangeNotes.splice(0,rangeNotes.length);chords.forEach(()=>{});const sortedAsc=ch.notes.slice().sort((a,b)=>a.pitch-b.pitch);const sortedDesc=sortedAsc.slice().reverse();const pool=p.pattern==='DOWN'?sortedDesc:p.pattern==='UP-DOWN'?[...sortedAsc,...sortedDesc.slice(1,-1)]:p.pattern==='RANDOM'?sortedAsc.slice().sort(()=>Math.random()-0.5):sortedAsc;// UP / CHORD
 const steps=p.pattern==='CHORD'?1:pool.length*p.octaves;const seqPitches=[];for(let i=0;i<steps;i++){if(p.pattern==='CHORD'){pool.forEach(n=>seqPitches.push(n.pitch));break;}seqPitches.push(pool[i%pool.length].pitch+Math.floor(i/pool.length)*12);}const stepDur=p.pattern==='CHORD'?rateBeats*pool.length:rateBeats;const total=seqPitches.length*stepDur;seqPitches.forEach((pitch,i)=>{const dur=stepDur*(p.gate/100);const vel=ch.notes[0]?ch.notes[0].velocity:0.8;notesOut.push({id:'note_'+Math.random().toString(36).substr(2,9),pitch,start_beat:ch.notes[0].start_beat+i*stepDur,duration_beats:Math.max(0.05,dur),velocity:vel});});result.push(...notesOut);});const others=notes.filter(n=>!targets.includes(n));commitNotes([...others,...result].sort((a,b)=>a.start_beat-b.start_beat));setArpModal(null);showToast('Đã arpeggiate '+targets.length+' nốt.','success');};const applyStrum=p=>{const secPerBeat=60.0/(parseInt(bpm)||120);const strumBeats=p.ms/1000.0/secPerBeat;const base=notes.filter(n=>selectedNoteIds.includes(n.id));const targets=base.length>0?base:notes;if(!targets.length)return;const groups=[];targets.forEach(n=>{const k=n.start_beat.toFixed(2);const g=groups.find(g2=>g2.k===k);if(g)g.notes.push(n);else groups.push({k,notes:[n]});});let alternateFlip=false;const result=targets.map(n=>({...n}));groups.forEach(g=>{const sorted=g.notes.slice().sort((a,b)=>a.pitch-b.pitch);const asc=p.direction==='UP'?sorted.slice().reverse():p.direction==='ALTERNATE'?alternateFlip?sorted.slice().reverse():sorted.slice():sorted;alternateFlip=!alternateFlip;const firstStart=sorted[0].start_beat;asc.forEach((note,index)=>{result.forEach(r=>{if(r.id===note.id){r.start_beat=parseFloat((firstStart+index*strumBeats).toFixed(3));r.velocity=Math.max(0.1,Math.min(1.0,parseFloat((r.velocity-index*0.03).toFixed(2))));}});});});commitNotes(result);setStrumModal(null);showToast('Đã strum '+targets.length+' nốt.','success');};const applyHumanizeModal=p=>{const spb=60.0/(parseInt(bpm)||120);const maxJitter=p.timingMs/1000.0/spb;const base=notes.filter(n=>selectedNoteIds.includes(n.id));const targets=base.length>0?base:notes;if(!targets.length)return;const result=targets.map(n=>{const tj=(Math.random()-0.5)*2*maxJitter;const vj=(Math.random()-0.5)*2*(p.velRange/127);const dj=p.durRange?(Math.random()-0.5)*2*(p.durRange/100):0;return{...n,start_beat:Math.max(0,parseFloat((n.start_beat+tj).toFixed(3))),velocity:Math.max(0.05,Math.min(1.0,parseFloat((n.velocity+vj).toFixed(2)))),duration_beats:Math.max(0.05,parseFloat((n.duration_beats*(1+dj)).toFixed(3)))};});const others=notes.filter(n=>!targets.includes(n));commitNotes([...others,...result]);setHumanizeModal(null);showToast('Đã humanize '+targets.length+' nốt.','success');};const applyForceToScale=()=>{const sc=scaleWithRoot();if(!sc){showToast('Chưa chọn scale (nhấp chuột phải chọn Scale).','warning');return;}const base=notes.filter(n=>selectedNoteIds.includes(n.id));const targets=base.length>0?base:notes;const result=targets.map(n=>({...n,pitch:snapPitchToScale(n.pitch,sc)}));const others=notes.filter(n=>!targets.includes(n));commitNotes([...others,...result]);showToast('Đã force '+targets.length+' nốt về scale.','success');};const CHORD_SHAPES={triad:[0,4,7],min7:[0,3,7,10],sus4:[0,5,7],add9:[0,4,7,14]};const applyChordStamp=(beat,pitch)=>{const shape=CHORD_SHAPES[chordType]||CHORD_SHAPES.triad;const beatSec=60.0/(parseInt(bpm)||120);const barBeats=4;const newNotes=shape.map(iv=>({id:'note_'+Math.random().toString(36).substr(2,9),pitch:pitch+iv,start_beat:beat,duration_beats:1,velocity:0.8}));commitNotes([...notes,...newNotes]);showToast('Đã stamp chord ('+shape.length+' nốt).','success');};const applyHarmonize=interval=>{const base=notes.filter(n=>selectedNoteIds.includes(n.id));const targets=base.length>0?base:notes;if(!targets.length)return;const dups=targets.map(n=>({...n,id:'note_'+Math.random().toString(36).substr(2,9),pitch:n.pitch+interval}));commitNotes([...notes,...dups]);showToast('Đã harmonize +'+interval+' ('+dups.length+' nốt).','success');};const applyVelocityCompress=()=>{const base=notes.filter(n=>selectedNoteIds.includes(n.id));const targets=base.length>0?base:notes;if(!targets.length)return;const mean=targets.reduce((s,n)=>s+(n.velocity!==undefined?n.velocity:0.8),0)/targets.length;const target=velocityTarget/127;const result=targets.map(n=>{const v=n.velocity!==undefined?n.velocity:0.8;return{...n,velocity:Math.max(0.05,Math.min(1.0,v+(target-mean)))};});const others=notes.filter(n=>!targets.includes(n));commitNotes([...others,...result]);showToast('Đã compress velocity về '+velocityTarget+' ('+targets.length+' nốt).','success');};const applyVelocityNormalize=()=>{const base=notes.filter(n=>selectedNoteIds.includes(n.id));const targets=base.length>0?base:notes;if(!targets.length)return;const maxV=Math.max(...targets.map(n=>n.velocity!==undefined?n.velocity:0.8));if(maxV<=0)return;const result=targets.map(n=>({...n,velocity:Math.max(0.05,Math.min(1.0,(n.velocity!==undefined?n.velocity:0.8)/maxV))}));const others=notes.filter(n=>!targets.includes(n));commitNotes([...others,...result]);showToast('Đã normalize velocity (max → 127).','success');};const renderScaleContextMenu=()=>{const closeMenu=()=>setScaleMenuPos(null);const origin=scaleMenuOriginRef.current||scaleMenuPos;const items=[];let subMenu=null;const isSameScale=(a,b)=>{if(!a||!b)return a===b;if(a.length!==b.length)return false;return a.every((v,i)=>v===b[i]);};const pushItem=(label,onClick,onHover)=>{const isActive=onClick._scale&&isSameScale(onClick._scale,selectedScale);items.push(React.createElement("div",{key:label,onClick:()=>{onClick();closeMenu();},onMouseEnter:onHover||undefined,className:"px-3 py-1.5 text-xs cursor-pointer hover:bg-amber-600 hover:text-white whitespace-nowrap "+(isActive?"bg-amber-800/40 text-amber-300":"text-zinc-300")},label));};Object.keys(SCALES).forEach(key=>{const val=SCALES[key];if(val===null){pushItem("None",()=>setSelectedScale(null));return;}if(Array.isArray(val)){pushItem(key,()=>setSelectedScale(val));}else{const parentKey=key;const isOpen=scaleMenuPos&&scaleMenuPos.parentKey===parentKey;pushItem(key+" ▸",()=>setSelectedScale(null),()=>{setScaleMenuPos({x:origin.x,y:origin.y,parentKey});});if(isOpen){const subs=[];Object.keys(val).forEach(subKey=>{subs.push(React.createElement("div",{key:subKey,onClick:()=>{setSelectedScale(val[subKey]);closeMenu();},className:"px-3 py-1.5 text-xs cursor-pointer hover:bg-amber-600 hover:text-white whitespace-nowrap "+(isSameScale(val[subKey],selectedScale)?"bg-amber-800/40 text-amber-300":"text-zinc-300")},subKey));});var subH=subs.length*30+16;var subTop=origin.y+subH+20>window.innerHeight?origin.y-subH:origin.y;subMenu=React.createElement("div",{style:{position:"fixed",left:origin.x+150,top:subTop,zIndex:10000},className:"bg-[#2a2a2a] border border-zinc-600 rounded shadow-xl py-1 min-w-[120px]"},...subs);}}});var menuH=items.length*30+16;var menuTop=origin.y+menuH+20>window.innerHeight?Math.max(10,origin.y-menuH):origin.y;return React.createElement(React.Fragment,null,React.createElement("div",{style:{position:"fixed",left:origin.x,top:menuTop,zIndex:9999},className:"bg-[#2a2a2a] border border-zinc-600 rounded shadow-xl py-1 min-w-[140px]"},...items),subMenu);};const renderBarLabels=()=>{const labels=[];const barsCount=Math.ceil(viewBeats/4);const barOffset=Math.floor(sessionStartBar);for(let bar=0;bar<barsCount;bar++){const x=bar*4*pixelsPerBeat;const displayBar=bar+barOffset;labels.push(/*#__PURE__*/React.createElement("div",{key:bar,style:{position:'absolute',left:`${x}px`,top:'4px'},className:"pl-1 border-l border-zinc-700 h-full select-none cursor-pointer hover:bg-zinc-800/30",onClick:e=>{e.stopPropagation();const barTime=bar*4*beatSec;setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:barTime}:s));}},`Bar ${displayBar}`));}return labels;};const beatSec=60.0/(parseInt(bpm)||120);const playHeadX=(st.currentTime||0)/beatSec*pixelsPerBeat;return React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 bg-[#1e1e1e] flex-col h-full"},/* 1. TOOLBAR HEADER — 2 hàng (wrap tự nhiên; spacer 100% ép hàng mới) */React.createElement("div",{className:"bg-[#282828] border-b border-zinc-900 flex flex-wrap items-center gap-x-2 gap-y-1 px-4 py-1.5 shrink-0 text-slate-200"},React.createElement("div",{className:"flex items-center gap-4"},React.createElement("select",{value:st.trackId||'',onChange:function(e){var trkId=e.target.value;var trkSel=(activeTracks||[]).find(function(t){return t.id===trkId;});if(trkSel&&trkSel.midiItems&&trkSel.midiItems.length)handleSwitchMidiItem(trkSel.midiItems[0].id);},className:"bg-zinc-800 border border-zinc-700 text-yellow-500 font-bold text-xs rounded px-1.5 py-0.5 outline-none focus:border-yellow-500 max-w-[180px] uppercase"},function(){var seenTrackOpts={};var trackOpts=[];(activeTracks||[]).forEach(function(t){if(!t.midiItems||!t.midiItems.length)return;if(seenTrackOpts[t.id])return;seenTrackOpts[t.id]=true;trackOpts.push(React.createElement("option",{key:t.id,value:t.id},t.name||t.id));});return trackOpts;}()),activeParentTrackName?React.createElement("span",{className:"text-[9px] text-zinc-500 ml-1"},"(Belongs to: ",React.createElement("span",{className:"text-zinc-400 font-semibold"},activeParentTrackName),")"):null,React.createElement("div",{className:"flex items-center gap-1 text-xs"},React.createElement("span",{className:"text-zinc-500 font-semibold"},"Snap:"),React.createElement("select",{value:snapValue,onChange:e=>{onSnapChange(e.target.value);setRenderTick(t=>t+1);},className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500"},['free','4','1','1/2','1/4','1/8','1/16','1/32'].map(v=>React.createElement("option",{key:v,value:v},v)))),React.createElement("button",{onClick:()=>setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,isArmed:!s.isArmed}:s)),className:`px-2 py-1 rounded text-xs font-bold ${st.isArmed?'bg-red-600 text-white':'bg-zinc-800 text-zinc-400'}`},"ARM"),React.createElement("select",{value:selectedMidiInputId||'',onChange:e=>onMidiInputSelect(e.target.value),className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-1 py-0.5 text-xs outline-none max-w-[100px]"},React.createElement("option",{value:""},"Input"),React.createElement("option",{value:"ALL"},"Omni"),(midiDevices||[]).map(d=>React.createElement("option",{key:d.id,value:d.id},d.name||d.id))),React.createElement("button",{onClick:()=>window.__toggleChordsPanel&&window.__toggleChordsPanel(),title:"Chords panel (Shift+K)",className:"px-1.5 py-0.5 rounded text-xs font-bold bg-zinc-800 hover:bg-zinc-700 text-amber-400"},"Chords"),React.createElement("div",{className:"flex items-center gap-0.5 shrink-0"},React.createElement("button",{onClick:()=>onInstrumentSelect&&onInstrumentSelect(st.trackId),title:st.instrumentName||"Synth",className:`px-1.5 py-0.5 text-[10px] rounded font-mono font-bold border transition flex items-center gap-0.5 max-w-[70px] ${st.instrumentName?'bg-violet-900 text-violet-300 border-violet-700':'bg-zinc-800 text-zinc-500 border-transparent hover:text-zinc-300'}`},React.createElement("i",{"data-lucide":"music",className:"w-3 h-3 shrink-0"}),React.createElement("span",{className:"truncate text-[9px]"},activeParentTrackName?'('+activeParentTrackName+') '+(st.instrumentName||'Synth'):st.instrumentName||'Synth')),st.instrumentId&&typeof st.instrumentId==='string'&&!st.instrumentId.startsWith('sf_')?React.createElement("button",{onClick:()=>{ensureAndOpenVstGui(st);},title:"Mở lại GUI VSTi",className:"px-1.5 py-0.5 text-[10px] rounded font-mono font-bold border transition flex items-center gap-0.5 shrink-0 bg-zinc-800 text-violet-300 border-violet-800 hover:bg-violet-900/40"},React.createElement("i",{"data-lucide":"sliders-horizontal",className:"w-3 h-3 shrink-0"}),React.createElement("span",{className:"truncate text-[10px]"},"GUI")):null),React.createElement("div",{className:"flex items-center gap-1 ml-1 text-xs"},React.createElement("span",{className:"text-zinc-500"},"AI:"),React.createElement("input",{type:"number",value:aiBarStart,onChange:e=>setAiBarStart(parseInt(e.target.value)||0),className:"w-8 bg-zinc-900 border border-zinc-700 text-zinc-200 rounded px-1 py-0.5 text-xs text-center"}),React.createElement("span",{className:"text-zinc-500"},"-"),React.createElement("input",{type:"number",value:aiBarEnd,onChange:e=>setAiBarEnd(parseInt(e.target.value)||1),className:"w-8 bg-zinc-900 border border-zinc-700 text-zinc-200 rounded px-1 py-0.5 text-xs text-center"}),React.createElement("span",{className:"text-zinc-500"},"bar")),React.createElement("select",{value:ccMode,onChange:e=>setCcMode(e.target.value),className:"bg-zinc-800 text-zinc-200 border border-zinc-700 rounded px-1.5 py-1 text-xs capitalize cursor-pointer"},React.createElement("option",{value:"velocity"},"Velocity"),React.createElement("option",{value:"sustain"},"Sustain"),React.createElement("option",{value:"modulation"},"Modulation"),React.createElement("option",{value:"pitch_bend"},"Pitch Bend"),React.createElement("option",{value:"pan"},"Pan"))),React.createElement("button",{onClick:()=>setShowCC(!showCC),className:`px-2 py-1 rounded text-xs ${showCC?'bg-purple-900/60 text-purple-300 border border-purple-700':'text-zinc-500 hover:text-zinc-300'}`},ccMode==='velocity'?'Vel':ccMode==='sustain'?'Sus':ccMode==='modulation'?'Mod':ccMode==='pitch_bend'?'Bend':ccMode==='pan'?'Pan':'CC'),React.createElement("button",{onClick:function(){setSessionSyncMode(function(p){return!p;});},className:function(){var base='px-2 py-1 rounded text-xs ';return sessionSyncMode?base+'bg-cyan-900/60 text-cyan-300 border border-cyan-700':base+'text-zinc-500 hover:text-zinc-300';}(),title:sessionSyncMode?"Session-synced mode (ghost visible)":"Isolated mode (bar 0, no ghost)"},sessionSyncMode?"\uD83C\uDF10 Session":"\uD83D\uDCCB Isolated"),React.createElement("button",{onClick:function(){setShowGhostNotes(function(p){return!p;});},disabled:!sessionSyncMode,className:function(){if(!sessionSyncMode)return'px-2 py-1 rounded text-xs opacity-30 cursor-not-allowed';var base='px-2 py-1 rounded text-xs ';return showGhostNotes?base+'bg-purple-900/60 text-purple-300 border border-purple-700':base+'text-zinc-500 hover:text-zinc-300';}(),title:"Toggle ghost notes visibility"},"👻 MIDI ghost notes"),React.createElement("div",{className:"flex items-center gap-1 ml-auto"},React.createElement("button",{onClick:()=>onSaveNotes(st.id,st.trackId,st.target_id,notes),className:"px-2.5 py-1 bg-emerald-600 hover:bg-emerald-500 text-white rounded text-xs flex items-center gap-1 transition font-semibold"},React.createElement("i",{"data-lucide":"save",className:"w-3 h-3"}),"L\u01B0u"),React.createElement("button",{onClick:async()=>{if(!notes||!notes.length){showToast('Chưa có nốt nhạc để xuất MIDI','warning');return;}const payload={bpm:parseFloat(bpm)||120,ppq:480,tracks:[{name:st.label||'Track',notes:(notes||[]).map(n=>({pitch:n.pitch||60,start_beat:n.start_beat||0,duration_beats:n.duration_beats||1,velocity:n.velocity!=null?n.velocity:0.8}))}]};try{await serverDownloadMidi(payload,(st.label||'midi')+'.mid');showToast('Đã xuất file MIDI!','success');}catch(err){showToast('Export MIDI thất bại: '+(err&&err.message?err.message:String(err)),'error');}},className:"px-2.5 py-1 bg-amber-700 hover:bg-amber-600 text-white rounded text-xs flex items-center gap-1 transition font-semibold"},React.createElement("i",{"data-lucide":"file-down",className:"w-3 h-3"}),"Export MIDI"),React.createElement("button",{onClick:async()=>{// Preview/export MIDI notes với âm VSTi: midi-render (pedalboard) →
-// play wav ngay; nếu pedalboard không render được plugin (VST2/state
-// GUI) fallback carla-play-notes (realtime qua Carla bridge, OSC).
-const se=st.synth_engine||{};const instrumentId=se.plugin_id||st.instrumentId||null;if(!instrumentId||String(se.type||'').indexOf('vst')===-1){showToast('Chọn VST instrument (nút Synth) trước khi Preview VSTi','warning');return;}if(!notes||!notes.length){showToast('Chưa có nốt nhạc','warning');return;}const payload={instrument_id:instrumentId,notes:(notes||[]).map(n=>({pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:n.velocity!=null?n.velocity:0.8})),bpm:parseFloat(bpm)||120,preset_id:se.preset_id||undefined,preset_path:se.preset_path||undefined,preset_data:se.preset_data||undefined};try{const res=await window.SonicAPI.midiRender(payload);if(vstiPreviewAudioRef.current){try{vstiPreviewAudioRef.current.pause();}catch(e){}}const audio=new Audio(res.url);vstiPreviewAudioRef.current=audio;audio.play().catch(()=>{});showToast(`Preview VSTi (${(res.duration_sec||0).toFixed(1)}s) — ${se.plugin_id||instrumentId}`,'success');}catch(err){// midi-render fail (404 plugin không load / 501 pedalboard) → Carla
-try{await window.SonicAPI.carlaPlayNotes({notes:payload.notes,bpm:payload.bpm,channel:se.midi_channel||0});showToast('Preview qua Carla (realtime) — nghe loa hệ thống','success');}catch(err2){showToast('Preview VSTi thất bại: '+(err&&err.message||'lỗi'),'error');}}},className:"px-2.5 py-1 bg-violet-700 hover:bg-violet-600 text-white rounded text-xs flex items-center gap-1 transition font-semibold",title:"Render MIDI notes bằng VSTi (pedalboard) và phát — fallback qua Carla realtime"},React.createElement("i",{"data-lucide":"play",className:"w-3 h-3"}),"Preview VSTi"),React.createElement("button",{onClick:()=>{const se=st.synth_engine||{};const instrumentId=se.plugin_id||st.instrumentId||null;if(!instrumentId||String(se.type||'').indexOf('vst')===-1){showToast('Chọn VST instrument (nút Synth) trước khi Export MIDI → Audio','warning');return;}if(!notes||!notes.length){showToast('Chưa có nốt nhạc','warning');return;}if(onExportMidiAudio)onExportMidiAudio(st,notes,bpm);else showToast('Không có handler export audio','error');},className:"px-2.5 py-1 bg-fuchsia-700 hover:bg-fuchsia-600 text-white rounded text-xs flex items-center gap-1 transition font-semibold",title:"Render MIDI notes bằng VSTi → WAV, chèn clip vào track và tải về"},React.createElement("i",{"data-lucide":"audio-lines",className:"w-3 h-3"}),"Export MIDI → Audio")),React.createElement("div",{style:{flexBasis:"100%",height:0}}),React.createElement("button",{onClick:()=>setArpModal({pattern:'UP',rate:'1/16',octaves:2,gate:80,triplet:false,dotted:false}),className:"px-2 py-1 rounded text-xs bg-cyan-900/40 text-cyan-300 border border-cyan-700/60 hover:bg-cyan-800/50 transition",title:"Arpeggiate (Alt+A)"},"ARP"),React.createElement("button",{onClick:()=>setStrumModal({ms:30,direction:'DOWN'}),className:"px-2 py-1 rounded text-xs bg-teal-900/40 text-teal-300 border border-teal-700/60 hover:bg-teal-800/50 transition",title:"Strum (Alt+S)"},"STRUM"),React.createElement("button",{onClick:()=>setHumanizeModal({timingMs:Math.round(humanizeStrength*100),velRange:Math.round(humanizeStrength*127),durRange:Math.round(humanizeStrength*50)}),className:"px-2 py-1 rounded text-xs bg-amber-900/40 text-amber-300 border border-amber-700/60 hover:bg-amber-800/50 transition",title:"Humanize (Alt+R)"},"HUMANIZE"),React.createElement("select",{key:"humstr",value:humanizeStrength,onChange:function(e){var v=parseFloat(e.target.value);setHumanizeStrength(v);setHumanizeModal({timingMs:Math.round(v*100),velRange:Math.round(v*127),durRange:Math.round(v*50)});},className:"px-1 py-1 rounded text-xs bg-zinc-900 border border-zinc-700 text-zinc-300 cursor-pointer",title:"Mức humanize (mở modal theo mức)"},React.createElement("option",{key:"l",value:0.05},"Nh\u1EB9"),React.createElement("option",{key:"m",value:0.10},"V\u1EEBa"),React.createElement("option",{key:"s",value:0.18},"M\u1EA1nh")),React.createElement("div",{key:"transpose",className:"flex items-center gap-1"},React.createElement("input",{key:"in",type:"number",step:1,min:-24,max:24,value:transposeSemis,onChange:function(e){setTransposeSemis(e.target.value);},className:"w-12 px-1 py-1 rounded text-xs bg-zinc-900 border border-zinc-700 text-center text-zinc-200",title:"Semitone offset (vd 2 = cao hơn 1 tone)"}),React.createElement("button",{key:"btn",onClick:function(){applyTranspose(transposeSemis);},className:"px-2 py-1 rounded text-xs bg-sky-900/40 text-sky-300 border border-sky-700/60 hover:bg-sky-800/50 transition",title:"Transpose all notes by the semitone offset"},"Transpose")),React.createElement("div",{key:"keyshift",className:"flex items-center gap-1"},React.createElement("select",{key:"root",value:keyTargetRoot,onChange:function(e){setKeyTargetRoot(e.target.value);},className:"px-1 py-1 rounded text-xs bg-zinc-900 border border-zinc-700 text-zinc-300 cursor-pointer",title:"Giọng đích (root)"},["C","C#","D","D#","E","F","F#","G","G#","A","A#","B"].map(function(r){return React.createElement("option",{key:r,value:r},r);})),React.createElement("select",{key:"scale",value:keyTargetScale,onChange:function(e){setKeyTargetScale(e.target.value);},className:"px-1 py-1 rounded text-xs bg-zinc-900 border border-zinc-700 text-zinc-300 cursor-pointer",title:"Thể scale đích"},React.createElement("option",{key:"maj",value:"major"},"major"),React.createElement("option",{key:"min",value:"minor"},"minor")),React.createElement("button",{key:"btn",onClick:applyTransposeToKey,className:"px-2 py-1 rounded text-xs bg-violet-900/40 text-violet-300 border border-violet-700/60 hover:bg-violet-800/50 transition",title:"Chuyển giọng: map degree hiện tại sang giọng đích (auto-detect key nguồn)"},"🎵 Chuyển giọng")),/* ── CÙNG HÀNG (sau Chuyển giọng — user 08:40: gộp 1 hàng, bỏ spacer) ── */React.createElement("div",{className:"flex items-center gap-1 text-xs"},React.createElement("span",{className:"text-zinc-500 font-semibold"},"Snap to Scale"),React.createElement("button",{onClick:()=>setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,snapToScale:!(s.snapToScale!==undefined?s.snapToScale:true)}:s)),className:`w-7 h-4 rounded-full transition-colors relative ${(st.snapToScale!==undefined?st.snapToScale:true)?'bg-yellow-600':'bg-zinc-700'}`,style:{padding:0}},React.createElement("div",{className:`w-3 h-3 rounded-full bg-white absolute top-0.5 transition-transform ${(st.snapToScale!==undefined?st.snapToScale:true)?'translate-x-3.5':'translate-x-0.5'}`}))),React.createElement("div",{className:"flex items-center gap-1 text-sm"},React.createElement("span",{className:"text-zinc-500 font-semibold"},"Scale:"),React.createElement("select",{value:JSON.stringify(selectedScale||null),onChange:e=>{const v=e.target.value;setSelectedScale(v==='null'?null:JSON.parse(v));setRenderTick(t=>t+1);},className:"bg-zinc-800 border border-zinc-700 text-sm text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500 max-w-[110px]"},React.createElement("option",{value:"null"},"None"),function(){const opts=[];const pushKey=(label,val)=>opts.push(React.createElement("option",{key:label,value:JSON.stringify(val)},label));Object.keys(SCALES||{}).forEach(k=>{const v=SCALES[k];if(v===null)return;if(Array.isArray(v))pushKey(k,v);else Object.keys(v).forEach(sk=>pushKey(sk,v[sk]));});return opts;}()),React.createElement("select",{value:scaleRoot,onChange:e=>{setScaleRoot(parseInt(e.target.value)||0);setRenderTick(t=>t+1);},className:"bg-zinc-800 border border-zinc-700 text-sm text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500"},['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'].map((r,i)=>React.createElement("option",{key:r,value:i},r))),React.createElement("button",{onClick:()=>applyForceToScale(),title:"Force selected notes to scale",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-amber-400 border border-zinc-700 hover:border-amber-600"},"Force")),React.createElement("div",{className:"flex items-center gap-1 text-sm"},React.createElement("span",{className:"text-zinc-500 font-semibold ml-1"},"Chord:"),React.createElement("select",{value:chordType,onChange:e=>setChordType(e.target.value),className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-1 py-0.5 text-sm outline-none"},React.createElement("option",{value:"triad"},"Triad"),React.createElement("option",{value:"min7"},"Min7"),React.createElement("option",{value:"sus4"},"Sus4"),React.createElement("option",{value:"add9"},"Add9")),React.createElement("button",{onClick:()=>setChordStampMode(m=>!m),title:"Chord stamp mode — click canvas to stamp chord (Shift+C)",className:`px-1.5 py-0.5 rounded text-sm border ${chordStampMode?'bg-amber-800/60 text-amber-300 border-amber-600':'bg-zinc-800 text-zinc-400 border-zinc-700 hover:border-amber-600'}`},"Stamp"),React.createElement("button",{onClick:()=>applyHarmonize(3),title:"Harmonize +3rd",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-emerald-600"},"+3"),React.createElement("button",{onClick:()=>applyHarmonize(5),title:"Harmonize +5th",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-emerald-600"},"+5"),React.createElement("button",{onClick:()=>applyHarmonize(7),title:"Harmonize +7th",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-emerald-600"},"+7")),React.createElement("div",{className:"flex items-center gap-1 text-sm"},React.createElement("span",{className:"text-zinc-500 font-semibold"},"Vel:"),React.createElement("button",{onClick:()=>applyVelocityCompress(),title:"Compress velocity toward target",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-purple-600"},"Comp"),React.createElement("input",{type:"number",value:velocityTarget,onChange:e=>setVelocityTarget(parseInt(e.target.value)||80),className:"w-14 bg-zinc-900 border border-zinc-700 text-zinc-200 rounded px-1 py-0.5 text-sm text-center"}),React.createElement("button",{onClick:()=>applyVelocityNormalize(),title:"Normalize (max → 127)",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-purple-600"},"Norm"))),/* 2. BAR RULER */React.createElement("div",{className:"h-6 bg-[#1a1a1f] border-b border-zinc-900 flex shrink-0"},React.createElement("div",{className:"w-[120px] bg-[#1e1e22] border-r border-zinc-800 shrink-0 flex items-end"},React.createElement("span",{className:"text-[8px] text-zinc-600 font-mono px-1.5 pb-0.5 uppercase tracking-wider"},"Tracks")),React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 shrink-0"}),React.createElement("div",{ref:rulerScrollRef,className:"flex-1 overflow-hidden",onMouseDown:e=>{const rect=e.currentTarget.getBoundingClientRect();const x=e.clientX-rect.left+e.currentTarget.scrollLeft;const clickBeat=x/pixelsPerBeat;const clickTime=clickBeat*beatSec;const clickInRange=loopStartBeat!==null&&loopEndBeat!==null&&clickBeat>=loopStartBeat&&clickBeat<=loopEndBeat;if(e.ctrlKey||e.metaKey){setLoopStartBeat(null);setLoopEndBeat(null);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionStart:null,selectionEnd:null}:s));return;}if(e.shiftKey){const beatSnap=getSnapBeat(clickBeat,snapValue);if(loopStartBeat===null){setLoopStartBeat(Math.max(0,beatSnap-4));setLoopEndBeat(Math.max(4,beatSnap));}else{setLoopEndBeat(Math.max(loopStartBeat+4,beatSnap));}return;}if(clickTime>=0){if(onSeekPlayhead){onSeekPlayhead(clickTime);}else{setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:clickTime}:s));}}const snappedStartBeat=getSnapBeat(clickBeat,snapValue);rulerDragRef.current={startX:e.clientX,startBeat:snappedStartBeat,scrollLeft:e.currentTarget.scrollLeft};const onMove=ev=>{const r=rulerScrollRef.current;if(!r||!rulerDragRef.current)return;const rRect=r.getBoundingClientRect();const bx=ev.clientX-rRect.left+rulerDragRef.current.scrollLeft;const rawBeat=Math.max(0,bx/pixelsPerBeat);const beat=getSnapBeat(rawBeat,snapValue);if(Math.abs(ev.clientX-rulerDragRef.current.startX)>5){if(clickInRange){const rangeWidth=loopEndBeat-loopStartBeat;const offset=rulerDragRef.current.startBeat-loopStartBeat;const centerBeat=beat-offset;const halfRange=rangeWidth/2;const newStart=Math.max(0,centerBeat-halfRange);setLoopStartBeat(newStart);setLoopEndBeat(newStart+rangeWidth);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionStart:newStart*beatSec,selectionEnd:(newStart+rangeWidth)*beatSec}:s));}else{const sBeat=Math.max(0,Math.min(rulerDragRef.current.startBeat,beat));const eBeat=Math.max(sBeat+1,Math.max(rulerDragRef.current.startBeat,beat));setLoopStartBeat(sBeat);setLoopEndBeat(eBeat);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionStart:sBeat*beatSec,selectionEnd:eBeat*beatSec}:s));}}};const onUp=()=>{rulerDragRef.current=null;document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);}},React.createElement("div",{style:{width:`${viewWidth}px`,height:'100%'},className:"relative h-full font-mono text-[9px] text-zinc-500 font-bold"},renderBarLabels(),loopStartBeat!==null&&loopEndBeat!==null&&loopEndBeat>loopStartBeat&&React.createElement("div",{style:{left:`${loopStartBeat*pixelsPerBeat}px`,width:`${(loopEndBeat-loopStartBeat)*pixelsPerBeat}px`,top:0,bottom:0},className:"absolute bg-emerald-500/15 border-l border-r border-emerald-400"},React.createElement("div",{style:{position:'absolute',left:0,top:0,bottom:0,width:'4px',cursor:'ew-resize'},onMouseDown:e=>{e.stopPropagation();const startBeat=loopStartBeat;const onMove=ev=>{const r=rulerScrollRef.current;if(!r)return;const rRect=r.getBoundingClientRect();const bx=ev.clientX-rRect.left+r.scrollLeft;const nBeat=Math.max(0,Math.min(loopEndBeat-1,getSnapBeat(bx/pixelsPerBeat,snapValue)));setLoopStartBeat(nBeat);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionStart:nBeat*beatSec}:s));};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);}}),React.createElement("div",{style:{position:'absolute',right:0,top:0,bottom:0,width:'4px',cursor:'ew-resize'},onMouseDown:e=>{e.stopPropagation();const onMove=ev=>{const r=rulerScrollRef.current;if(!r)return;const rRect=r.getBoundingClientRect();const bx=ev.clientX-rRect.left+r.scrollLeft;const nBeat=Math.max(loopStartBeat+1,getSnapBeat(bx/pixelsPerBeat,snapValue));setLoopEndBeat(nBeat);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionEnd:nBeat*beatSec}:s));};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);}}))))),/* 3. MAIN PIANO ROLL GRID (KEYBOARD + TRACK COL + CANVAS) */React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 relative",onMouseEnter:function(){prMouseInRef.current=true;// Status bar gợi ý động (user 09:40): trong piano roll → base hint;
+// play wav ngay.
+const se=st.synth_engine||{};const instrumentId=se.plugin_id||st.instrumentId||null;if(!instrumentId||String(se.type||'').indexOf('vst')===-1){showToast('Chọn VST instrument (nút Synth) trước khi Preview VSTi','warning');return;}if(!notes||!notes.length){showToast('Chưa có nốt nhạc','warning');return;}const payload={instrument_id:instrumentId,notes:(notes||[]).map(n=>({pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:n.velocity!=null?n.velocity:0.8})),bpm:parseFloat(bpm)||120,preset_id:se.preset_id||undefined,preset_path:se.preset_path||undefined,preset_data:se.preset_data||undefined};try{const res=await window.SonicAPI.midiRender(payload);if(vstiPreviewAudioRef.current){try{vstiPreviewAudioRef.current.pause();}catch(e){}}const audio=new Audio(res.url);vstiPreviewAudioRef.current=audio;audio.play().catch(()=>{});showToast(`Preview VSTi (${(res.duration_sec||0).toFixed(1)}s) — ${se.plugin_id||instrumentId}`,'success');}catch(err){showToast('Preview VSTi thất bại: '+(err&&err.message||'lỗi'),'error');}},className:"px-2.5 py-1 bg-violet-700 hover:bg-violet-600 text-white rounded text-xs flex items-center gap-1 transition font-semibold",title:"Render MIDI notes bằng VSTi (pedalboard) và phát"},React.createElement("i",{"data-lucide":"play",className:"w-3 h-3"}),"Preview VSTi"),React.createElement("button",{onClick:()=>{const se=st.synth_engine||{};const instrumentId=se.plugin_id||st.instrumentId||null;if(!instrumentId||String(se.type||'').indexOf('vst')===-1){showToast('Chọn VST instrument (nút Synth) trước khi Export MIDI → Audio','warning');return;}if(!notes||!notes.length){showToast('Chưa có nốt nhạc','warning');return;}if(onExportMidiAudio)onExportMidiAudio(st,notes,bpm);else showToast('Không có handler export audio','error');},className:"px-2.5 py-1 bg-fuchsia-700 hover:bg-fuchsia-600 text-white rounded text-xs flex items-center gap-1 transition font-semibold",title:"Render MIDI notes bằng VSTi → WAV, chèn clip vào track và tải về"},React.createElement("i",{"data-lucide":"audio-lines",className:"w-3 h-3"}),"Export MIDI → Audio")),React.createElement("div",{style:{flexBasis:"100%",height:0}}),React.createElement("button",{onClick:()=>setArpModal({pattern:'UP',rate:'1/16',octaves:2,gate:80,triplet:false,dotted:false}),className:"px-2 py-1 rounded text-xs bg-cyan-900/40 text-cyan-300 border border-cyan-700/60 hover:bg-cyan-800/50 transition",title:"Arpeggiate (Alt+A)"},"ARP"),React.createElement("button",{onClick:()=>setStrumModal({ms:30,direction:'DOWN'}),className:"px-2 py-1 rounded text-xs bg-teal-900/40 text-teal-300 border border-teal-700/60 hover:bg-teal-800/50 transition",title:"Strum (Alt+S)"},"STRUM"),React.createElement("button",{onClick:()=>setHumanizeModal({timingMs:Math.round(humanizeStrength*100),velRange:Math.round(humanizeStrength*127),durRange:Math.round(humanizeStrength*50)}),className:"px-2 py-1 rounded text-xs bg-amber-900/40 text-amber-300 border border-amber-700/60 hover:bg-amber-800/50 transition",title:"Humanize (Alt+R)"},"HUMANIZE"),React.createElement("select",{key:"humstr",value:humanizeStrength,onChange:function(e){var v=parseFloat(e.target.value);setHumanizeStrength(v);setHumanizeModal({timingMs:Math.round(v*100),velRange:Math.round(v*127),durRange:Math.round(v*50)});},className:"px-1 py-1 rounded text-xs bg-zinc-900 border border-zinc-700 text-zinc-300 cursor-pointer",title:"Mức humanize (mở modal theo mức)"},React.createElement("option",{key:"l",value:0.05},"Nh\u1EB9"),React.createElement("option",{key:"m",value:0.10},"V\u1EEBa"),React.createElement("option",{key:"s",value:0.18},"M\u1EA1nh")),React.createElement("div",{key:"transpose",className:"flex items-center gap-1"},React.createElement("input",{key:"in",type:"number",step:1,min:-24,max:24,value:transposeSemis,onChange:function(e){setTransposeSemis(e.target.value);},className:"w-12 px-1 py-1 rounded text-xs bg-zinc-900 border border-zinc-700 text-center text-zinc-200",title:"Semitone offset (vd 2 = cao hơn 1 tone)"}),React.createElement("button",{key:"btn",onClick:function(){applyTranspose(transposeSemis);},className:"px-2 py-1 rounded text-xs bg-sky-900/40 text-sky-300 border border-sky-700/60 hover:bg-sky-800/50 transition",title:"Transpose all notes by the semitone offset"},"Transpose")),React.createElement("div",{key:"keyshift",className:"flex items-center gap-1"},React.createElement("select",{key:"root",value:keyTargetRoot,onChange:function(e){setKeyTargetRoot(e.target.value);},className:"px-1 py-1 rounded text-xs bg-zinc-900 border border-zinc-700 text-zinc-300 cursor-pointer",title:"Giọng đích (root)"},["C","C#","D","D#","E","F","F#","G","G#","A","A#","B"].map(function(r){return React.createElement("option",{key:r,value:r},r);})),React.createElement("select",{key:"scale",value:keyTargetScale,onChange:function(e){setKeyTargetScale(e.target.value);},className:"px-1 py-1 rounded text-xs bg-zinc-900 border border-zinc-700 text-zinc-300 cursor-pointer",title:"Thể scale đích"},React.createElement("option",{key:"maj",value:"major"},"major"),React.createElement("option",{key:"min",value:"minor"},"minor")),React.createElement("button",{key:"btn",onClick:applyTransposeToKey,className:"px-2 py-1 rounded text-xs bg-violet-900/40 text-violet-300 border border-violet-700/60 hover:bg-violet-800/50 transition",title:"Chuyển giọng: map degree hiện tại sang giọng đích (auto-detect key nguồn)"},"🎵 Chuyển giọng")),/* ── CÙNG HÀNG (sau Chuyển giọng — user 08:40: gộp 1 hàng, bỏ spacer) ── */React.createElement("div",{className:"flex items-center gap-1 text-xs"},React.createElement("span",{className:"text-zinc-500 font-semibold"},"Snap to Scale"),React.createElement("button",{onClick:()=>setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,snapToScale:!(s.snapToScale!==undefined?s.snapToScale:true)}:s)),className:`w-7 h-4 rounded-full transition-colors relative ${(st.snapToScale!==undefined?st.snapToScale:true)?'bg-yellow-600':'bg-zinc-700'}`,style:{padding:0}},React.createElement("div",{className:`w-3 h-3 rounded-full bg-white absolute top-0.5 transition-transform ${(st.snapToScale!==undefined?st.snapToScale:true)?'translate-x-3.5':'translate-x-0.5'}`}))),React.createElement("div",{className:"flex items-center gap-1 text-sm"},React.createElement("span",{className:"text-zinc-500 font-semibold"},"Scale:"),React.createElement("select",{value:JSON.stringify(selectedScale||null),onChange:e=>{const v=e.target.value;setSelectedScale(v==='null'?null:JSON.parse(v));setRenderTick(t=>t+1);},className:"bg-zinc-800 border border-zinc-700 text-sm text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500 max-w-[110px]"},React.createElement("option",{value:"null"},"None"),function(){const opts=[];const pushKey=(label,val)=>opts.push(React.createElement("option",{key:label,value:JSON.stringify(val)},label));Object.keys(SCALES||{}).forEach(k=>{const v=SCALES[k];if(v===null)return;if(Array.isArray(v))pushKey(k,v);else Object.keys(v).forEach(sk=>pushKey(sk,v[sk]));});return opts;}()),React.createElement("select",{value:scaleRoot,onChange:e=>{setScaleRoot(parseInt(e.target.value)||0);setRenderTick(t=>t+1);},className:"bg-zinc-800 border border-zinc-700 text-sm text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500"},['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'].map((r,i)=>React.createElement("option",{key:r,value:i},r))),React.createElement("button",{onClick:()=>applyForceToScale(),title:"Force selected notes to scale",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-amber-400 border border-zinc-700 hover:border-amber-600"},"Force")),React.createElement("div",{className:"flex items-center gap-1 text-sm"},React.createElement("span",{className:"text-zinc-500 font-semibold ml-1"},"Chord:"),React.createElement("select",{value:chordType,onChange:e=>setChordType(e.target.value),className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-1 py-0.5 text-sm outline-none"},React.createElement("option",{value:"triad"},"Triad"),React.createElement("option",{value:"min7"},"Min7"),React.createElement("option",{value:"sus4"},"Sus4"),React.createElement("option",{value:"add9"},"Add9")),React.createElement("button",{onClick:()=>setChordStampMode(m=>!m),title:"Chord stamp mode — click canvas to stamp chord (Shift+C)",className:`px-1.5 py-0.5 rounded text-sm border ${chordStampMode?'bg-amber-800/60 text-amber-300 border-amber-600':'bg-zinc-800 text-zinc-400 border-zinc-700 hover:border-amber-600'}`},"Stamp"),React.createElement("button",{onClick:()=>applyHarmonize(3),title:"Harmonize +3rd",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-emerald-600"},"+3"),React.createElement("button",{onClick:()=>applyHarmonize(5),title:"Harmonize +5th",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-emerald-600"},"+5"),React.createElement("button",{onClick:()=>applyHarmonize(7),title:"Harmonize +7th",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-emerald-600"},"+7")),React.createElement("div",{className:"flex items-center gap-1 text-sm"},React.createElement("span",{className:"text-zinc-500 font-semibold"},"Vel:"),React.createElement("button",{onClick:()=>applyVelocityCompress(),title:"Compress velocity toward target",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-purple-600"},"Comp"),React.createElement("input",{type:"number",value:velocityTarget,onChange:e=>setVelocityTarget(parseInt(e.target.value)||80),className:"w-14 bg-zinc-900 border border-zinc-700 text-zinc-200 rounded px-1 py-0.5 text-sm text-center"}),React.createElement("button",{onClick:()=>applyVelocityNormalize(),title:"Normalize (max → 127)",className:"px-1.5 py-0.5 rounded text-sm bg-zinc-800 text-zinc-300 border border-zinc-700 hover:border-purple-600"},"Norm"))),/* 2. BAR RULER */React.createElement("div",{className:"h-6 bg-[#1a1a1f] border-b border-zinc-900 flex shrink-0"},React.createElement("div",{className:"w-[120px] bg-[#1e1e22] border-r border-zinc-800 shrink-0 flex items-end"},React.createElement("span",{className:"text-[8px] text-zinc-600 font-mono px-1.5 pb-0.5 uppercase tracking-wider"},"Tracks")),React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 shrink-0"}),React.createElement("div",{ref:rulerScrollRef,className:"flex-1 overflow-hidden",onMouseDown:e=>{const rect=e.currentTarget.getBoundingClientRect();const x=e.clientX-rect.left+e.currentTarget.scrollLeft;const clickBeat=x/pixelsPerBeat;const clickTime=clickBeat*beatSec;const clickInRange=loopStartBeat!==null&&loopEndBeat!==null&&clickBeat>=loopStartBeat&&clickBeat<=loopEndBeat;if(e.ctrlKey||e.metaKey){setLoopStartBeat(null);setLoopEndBeat(null);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionStart:null,selectionEnd:null}:s));return;}if(e.shiftKey){const beatSnap=getSnapBeat(clickBeat,snapValue);if(loopStartBeat===null){setLoopStartBeat(Math.max(0,beatSnap-4));setLoopEndBeat(Math.max(4,beatSnap));}else{setLoopEndBeat(Math.max(loopStartBeat+4,beatSnap));}return;}if(clickTime>=0){if(onSeekPlayhead){onSeekPlayhead(clickTime);}else{setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:clickTime}:s));}}const snappedStartBeat=getSnapBeat(clickBeat,snapValue);rulerDragRef.current={startX:e.clientX,startBeat:snappedStartBeat,scrollLeft:e.currentTarget.scrollLeft};const onMove=ev=>{const r=rulerScrollRef.current;if(!r||!rulerDragRef.current)return;const rRect=r.getBoundingClientRect();const bx=ev.clientX-rRect.left+rulerDragRef.current.scrollLeft;const rawBeat=Math.max(0,bx/pixelsPerBeat);const beat=getSnapBeat(rawBeat,snapValue);if(Math.abs(ev.clientX-rulerDragRef.current.startX)>5){if(clickInRange){const rangeWidth=loopEndBeat-loopStartBeat;const offset=rulerDragRef.current.startBeat-loopStartBeat;const centerBeat=beat-offset;const halfRange=rangeWidth/2;const newStart=Math.max(0,centerBeat-halfRange);setLoopStartBeat(newStart);setLoopEndBeat(newStart+rangeWidth);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionStart:newStart*beatSec,selectionEnd:(newStart+rangeWidth)*beatSec}:s));}else{const sBeat=Math.max(0,Math.min(rulerDragRef.current.startBeat,beat));const eBeat=Math.max(sBeat+1,Math.max(rulerDragRef.current.startBeat,beat));setLoopStartBeat(sBeat);setLoopEndBeat(eBeat);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionStart:sBeat*beatSec,selectionEnd:eBeat*beatSec}:s));}}};const onUp=()=>{rulerDragRef.current=null;document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);}},React.createElement("div",{style:{width:`${viewWidth}px`,height:'100%'},className:"relative h-full font-mono text-[9px] text-zinc-500 font-bold"},renderBarLabels(),loopStartBeat!==null&&loopEndBeat!==null&&loopEndBeat>loopStartBeat&&React.createElement("div",{style:{left:`${loopStartBeat*pixelsPerBeat}px`,width:`${(loopEndBeat-loopStartBeat)*pixelsPerBeat}px`,top:0,bottom:0},className:"absolute bg-emerald-500/15 border-l border-r border-emerald-400"},React.createElement("div",{style:{position:'absolute',left:0,top:0,bottom:0,width:'4px',cursor:'ew-resize'},onMouseDown:e=>{e.stopPropagation();const startBeat=loopStartBeat;const onMove=ev=>{const r=rulerScrollRef.current;if(!r)return;const rRect=r.getBoundingClientRect();const bx=ev.clientX-rRect.left+r.scrollLeft;const nBeat=Math.max(0,Math.min(loopEndBeat-1,getSnapBeat(bx/pixelsPerBeat,snapValue)));setLoopStartBeat(nBeat);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionStart:nBeat*beatSec}:s));};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);}}),React.createElement("div",{style:{position:'absolute',right:0,top:0,bottom:0,width:'4px',cursor:'ew-resize'},onMouseDown:e=>{e.stopPropagation();const onMove=ev=>{const r=rulerScrollRef.current;if(!r)return;const rRect=r.getBoundingClientRect();const bx=ev.clientX-rRect.left+r.scrollLeft;const nBeat=Math.max(loopStartBeat+1,getSnapBeat(bx/pixelsPerBeat,snapValue));setLoopEndBeat(nBeat);setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,selectionEnd:nBeat*beatSec}:s));};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);}}))))),/* 3. MAIN PIANO ROLL GRID (KEYBOARD + TRACK COL + CANVAS) */React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 relative",onMouseEnter:function(){prMouseInRef.current=true;// Status bar gợi ý động (user 09:40): trong piano roll → base hint;
 // giữ Shift → select/unselect; giữ Ctrl → fast copy
 if(window.__setPrHint){window.__setPrHint(prKeyStateRef.current.ctrl?"Ctrl+drag: fast copy notes | Ctrl+click empty: marquee chọn notes":prKeyStateRef.current.shift?"Shift+Click: select/unselect notes | Shift+Click note: thêm/bớt vào nhóm chọn":"Scroll: Up/Down | Drag: Draw notes");}},onMouseLeave:function(){prMouseInRef.current=false;if(window.__setPrHint)window.__setPrHint(null);}},/* Track column */React.createElement("div",{className:"w-[120px] bg-[#16161a] border-r border-zinc-800 shrink-0 flex flex-col z-10",style:{height:KeybedPixelHeight+'px'}},allMidiItems.length>0?function(){var seenTracks={};var els=[];allMidiItems.forEach(function(m){if(seenTracks[m._trackId])return;seenTracks[m._trackId]=true;var track=(activeTracks||[]).find(function(t){return t.id===m._trackId;});var isActive=m._trackId===st.trackId&&m.id===st.target_id;var isPlayOn=activePlayTrackIds&&activePlayTrackIds.indexOf(m._trackId)!==-1;els.push(React.createElement("div",{key:m._trackId,className:"flex items-center gap-0.5 mx-1 my-[2px]"},React.createElement("button",{onClick:function(){// Click nút tên track → ACTIVE ghost notes của track đó thành MAIN
 // notes để chỉnh sửa (user 09:40)
@@ -801,7 +773,7 @@ const specMods=(spectrumModules?spectrumModules():null)||(getModule?[getModule()
 const applyAll=applyTo||(fn=>{if(typeof window!=='undefined'&&window.__getTrackFxModule){const a=window.__getTrackFxModule(track.id,'eqpro');if(a)fn(a);}if(typeof window!=='undefined'&&window.__getTrackSfFxModule){const b=window.__getTrackSfFxModule(track.id,'eqpro');if(b)fn(b);}});const onDown=e=>{const cv=canvasRef.current,w=cv.clientWidth,h=cv.clientHeight;const{x,y}=toLocal(e);const s=st.current;let hit=false;for(let i=0;i<s.bands.length;i++){const b=s.bands[i];if(Math.hypot(x-eqproFreqToX(b.freq,w),y-eqproGainToY(eqproNodeDb(b),h))<=10){s.selected=i;s.dragId=i;s.mode='center';hit=true;break;}}if(!hit&&s.selected!==null){const b=s.bands[s.selected];const nx=eqproFreqToX(b.freq,w),ny=eqproGainToY(eqproNodeDb(b),h),wo=eqproQToWing(b.q);if(Math.hypot(x-(nx-wo),y-ny)<=8||Math.hypot(x-(nx+wo),y-ny)<=8){s.dragId=s.selected;s.mode='wing';hit=true;}}if(!hit)s.selected=null;try{cv.setPointerCapture(e.pointerId);}catch(err){}setTick(t=>t+1);};const onMove=e=>{const s=st.current;if(s.dragId===null)return;const cv=canvasRef.current,w=cv.clientWidth,h=cv.clientHeight;const{x,y}=toLocal(e);const mx=Math.max(0,Math.min(w,x)),my=Math.max(0,Math.min(h,y));const b=s.bands[s.dragId];if(s.mode==='center'){const f=eqproClamp(parseFloat(eqproXToFreq(mx,w).toFixed(1)),EQPRO_F_MIN,EQPRO_F_MAX);// Filters without a Gain control (highpass/lowpass/notch/bandpass) stay on
 // the 0 dB axis — only frequency is draggable for them.
 const g=eqproBandHasGain(b.type)?eqproClamp(parseFloat(eqproYToGain(my,h).toFixed(1)),-EQPRO_MAX_DB,EQPRO_MAX_DB):0;b.freq=f;b.gain=g;applyAll(mm=>mm.setBand(s.dragId,{freq:f,gain:g}));}else if(s.mode==='wing'){const q=eqproWingToQ(Math.abs(mx-eqproFreqToX(b.freq,w)));b.q=q;applyAll(mm=>mm.setBand(s.dragId,{q}));}setTick(t=>t+1);};const onUp=e=>{const s=st.current;if(s.dragId!==null)commit();s.dragId=null;s.mode=null;try{canvasRef.current.releasePointerCapture(e.pointerId);}catch(err){}};const onWheel=e=>{e.preventDefault();const s=st.current;if(s.selected===null)return;const b=s.bands[s.selected];b.q=eqproClamp(parseFloat((b.q+(e.deltaY<0?0.2:-0.2)).toFixed(1)),0.1,18);applyAll(mm=>mm.setBand(s.selected,{q:b.q}));setTick(t=>t+1);};const onDblClick=e=>{const cv=canvasRef.current,w=cv.clientWidth,h=cv.clientHeight;const{x,y}=toLocal(e);const s=st.current;const hitIdx=s.bands.findIndex(b=>Math.hypot(x-eqproFreqToX(b.freq,w),y-eqproGainToY(b.gain,h))<=10);if(hitIdx!==-1){s.bands.splice(hitIdx,1);if(s.selected===hitIdx)s.selected=null;else if(s.selected!==null&&s.selected>hitIdx)s.selected--;}else{if(s.bands.length>=EQPRO_MAX_BANDS)return;s.bands.push({type:'peaking',freq:eqproClamp(parseFloat(eqproXToFreq(x,w).toFixed(1)),EQPRO_F_MIN,EQPRO_F_MAX),gain:eqproClamp(parseFloat(eqproYToGain(y,h).toFixed(1)),-EQPRO_MAX_DB,EQPRO_MAX_DB),q:1.2,active:true});s.selected=s.bands.length-1;}applyAll(mm=>mm.syncBands(s.bands));commit();setTick(t=>t+1);};const sel=st.current.selected!==null?st.current.bands[st.current.selected]:null;const selIdx=st.current.selected;const cvW=canvasRef.current?canvasRef.current.clientWidth:460;const cvH=240;const hudColor=selIdx!==null?EQPRO_BAND_COLORS[selIdx%EQPRO_BAND_COLORS.length]:EQPRO_BAND_COLORS[0];const hudXY=(()=>{if(st.current.hudPos){// Clamp so the HUD always stays inside the canvas area (buttons clickable).
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Carla rồi Save preset','success');else window.showToast&&window.showToast('Không mở được Carla','error');}).catch(err=>window.showToast&&window.showToast('Lỗi mở Carla: '+(err.message||err),'error'));},className:"px-2 py-1 bg-teal-800 hover:bg-teal-700 text-teal-100 text-[10px] font-semibold rounded transition",title:"Mở native GUI trong Carla"},"Carla"),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();moveV(idx,-1);},disabled:idx===0,className:"w-6 h-6 bg-slate-800 hover:bg-slate-700 text-slate-300 rounded text-xs disabled:opacity-30",title:"Lên"},/*#__PURE__*/React.createElement("i",{"data-lucide":"chevron-up",className:"w-3 h-3"})),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();moveV(idx,1);},disabled:idx===chainLen-1,className:"w-6 h-6 bg-slate-800 hover:bg-slate-700 text-slate-300 rounded text-xs disabled:opacity-30",title:"Xuống"},/*#__PURE__*/React.createElement("i",{"data-lucide":"chevron-down",className:"w-3 h-3"})),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();removeV(idx);},className:"text-slate-600 hover:text-red-400 text-xs px-0.5",title:"Xóa slot"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"})));// ── VST FX Plugin Picker (spec vst_fx_panel_integration.md §II) ──────────
+},[url]);const pt=e=>{const box=boxRef.current,img=imgRef.current;if(!box||!img||!img.naturalWidth||!img.naturalHeight)return null;const r=box.getBoundingClientRect();if(r.width===0||r.height===0)return null;return{x:Math.round((e.clientX-r.left)/r.width*img.naturalWidth),y:Math.round((e.clientY-r.top)/r.height*img.naturalHeight)};};const handle=e=>{const p=pt(e);if(!p)return;post({type:e.type==='mousedown'?'mousedown':e.type==='mouseup'?'mouseup':'mousemove',x:p.x,y:p.y,button:e.button,buttons:e.buttons,rect:screenRectRef.current||undefined});};const close=()=>{try{fetch(url+'/close',{method:'POST'}).catch(()=>{});}catch(e){}onClose&&onClose();};return/*#__PURE__*/React.createElement("div",{className:"relative w-full h-full flex flex-col"},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between px-3 py-1.5 bg-slate-900/80 border border-slate-800 rounded-t-lg shrink-0"},/*#__PURE__*/React.createElement("span",{className:"text-[10px] text-violet-300 font-mono"},"VST GUI \u2014 nh\xFAng (frame-capture \xB7 ~10fps)"),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2"},dead&&/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-red-400 font-mono"},"bridge m\u1EA5t k\u1EBFt n\u1ED1i"),/*#__PURE__*/React.createElement("button",{onClick:close,className:"px-2 py-0.5 bg-red-900/60 hover:bg-red-800 text-red-100 text-[10px] font-semibold rounded transition",title:"\u0110\xF3ng GUI v\xE0 tr\u1EA3 v\u1EC1 graph"},"\u2715 \u0110\xF3ng GUI"))),/*#__PURE__*/React.createElement("div",{ref:boxRef,tabIndex:0,className:"flex-1 relative bg-slate-950 border border-slate-800 rounded-b-lg overflow-hidden outline-none",onMouseDown:handle,onMouseUp:handle,onMouseMove:handle,onMouseLeave:()=>post({type:'mouseup',x:-1,y:-1,button:0}),onWheel:e=>{const p=pt(e);if(p)post({type:'wheel',x:p.x,y:p.y,deltaY:e.deltaY,rect:screenRectRef.current||undefined});},onKeyDown:e=>{e.preventDefault();post({type:'keydown',keyCode:e.keyCode||e.which});},onKeyUp:e=>{e.preventDefault();post({type:'keyup',keyCode:e.keyCode||e.which});}},/*#__PURE__*/React.createElement("img",{ref:imgRef,alt:"VST GUI",className:"w-full h-full object-contain select-none pointer-events-none",draggable:false})));};const vstRow=(s,idx,toggleV,changeV,uploadV,moveV,removeV,fxl,chainLen,openGui,activeIdx=-1,onSelect=null)=>/*#__PURE__*/React.createElement("div",{key:idx,onClick:()=>onSelect&&onSelect(s,idx),className:`flex items-center gap-2 bg-slate-900/60 border rounded-lg px-2 py-1.5 flex-wrap cursor-pointer transition-all ${activeIdx===idx?'border-teal-400 bg-slate-800/80':'border-slate-800 hover:border-slate-600'}`},/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();toggleV(idx);},className:`w-4 h-4 rounded-full flex items-center justify-center text-[9px] font-bold shrink-0 ${!s.bypass?'bg-teal-500 text-slate-950':'bg-slate-700 text-slate-300'}`,title:s.bypass?'Bypass':'Active'},/*#__PURE__*/React.createElement("i",{"data-lucide":"power",className:"w-2.5 h-2.5"})),/*#__PURE__*/React.createElement("span",{className:"text-[10px] font-bold text-slate-300 font-mono w-6 shrink-0"},idx+1),/*#__PURE__*/React.createElement("select",{value:s.path||'',onClick:e=>e.stopPropagation(),onChange:e=>changeV(idx,e.target.value),className:"flex-1 min-w-[200px] bg-slate-950 border border-slate-700 text-teal-300 rounded px-2 py-1 text-[11px] outline-none focus:border-teal-500"},/*#__PURE__*/React.createElement("option",{value:""},"\u2014 Ch\u1ECDn VST FX \u2014"),(fxl||[]).map(f=>/*#__PURE__*/React.createElement("option",{key:f.path,value:f.path},f.name||f.id))),/*#__PURE__*/React.createElement("span",{className:`text-[9px] font-mono ${s.preset_b64?'text-emerald-400':'text-slate-600'}`},s.preset_b64?'✓ preset':'no 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disabled:opacity-30",title:"L\xEAn"},/*#__PURE__*/React.createElement("i",{"data-lucide":"chevron-up",className:"w-3 h-3"})),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();moveV(idx,1);},disabled:idx===chainLen-1,className:"w-6 h-6 bg-slate-800 hover:bg-slate-700 text-slate-300 rounded text-xs disabled:opacity-30",title:"Xu\u1ED1ng"},/*#__PURE__*/React.createElement("i",{"data-lucide":"chevron-down",className:"w-3 h-3"})),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();removeV(idx);},className:"text-slate-600 hover:text-red-400 text-xs px-0.5",title:"X\xF3a slot"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"})));// ── VST FX Plugin Picker (spec vst_fx_panel_integration.md §II) ──────────
 // Modal chọn VST FX theo category (heuristic từ backend list_fx.category).
 // Dùng chung FXRackModal + MasteringModal: [+] → picker → chèn VST card.
-const VST_FX_CATEGORIES=[{id:'all',label:'Tất cả'},{id:'equalizer',label:'Equalizers / Dynamic EQ'},{id:'reverb_delay',label:'Reverbs & Delays'},{id:'comp_limiter',label:'Compressors & Limiters'},{id:'distortion',label:'Distortion / Saturation'},{id:'utility',label:'Utility'}];const VstPluginPicker=({open,onClose,plugins,onPick,loading})=>{const[cat,setCat]=React.useState('all');React.useEffect(()=>{if(open)setCat('all');},[open]);if(!open)return null;const list=(plugins||[]).filter(p=>cat==='all'||(p.category||'utility')===cat);return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-[125] bg-black/80 backdrop-blur-sm flex items-center justify-center p-4",onClick:onClose},/*#__PURE__*/React.createElement("div",{className:"w-full max-w-2xl bg-slate-900 border border-slate-700 rounded-2xl p-5 space-y-4 shadow-2xl max-h-[80vh] flex flex-col",onClick:e=>e.stopPropagation()},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between border-b border-slate-800 pb-3"},/*#__PURE__*/React.createElement("h3",{className:"text-xs font-bold text-white uppercase tracking-wider font-mono"},"CHỌN VST FX — PLUGIN PICKER"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"text-slate-400 hover:text-white"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("div",{className:"flex flex-wrap gap-1.5 shrink-0"},VST_FX_CATEGORIES.map(c=>/*#__PURE__*/React.createElement("button",{key:c.id,onClick:()=>setCat(c.id),className:`px-2.5 py-1 rounded text-[10px] font-semibold transition ${cat===c.id?'bg-teal-700 text-white':'bg-slate-800 hover:bg-slate-700 text-slate-300'}`},c.label))),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-y-auto oz-scrollbar grid grid-cols-2 gap-2"},loading&&/*#__PURE__*/React.createElement("div",{className:"col-span-2 text-[11px] text-amber-300 font-mono py-10 text-center animate-pulse"},"Đang quét VST FX..."),!loading&&list.length===0&&/*#__PURE__*/React.createElement("div",{className:"col-span-2 text-[11px] text-slate-500 font-mono py-10 text-center"},"Không có VST FX trong mục này."),!loading&&list.map(f=>/*#__PURE__*/React.createElement("button",{key:f.path,onClick:()=>{onPick(f);onClose();},className:"p-2 bg-slate-950 hover:bg-slate-800 border border-slate-800 rounded-lg text-left space-y-0.5 transition-colors"},/*#__PURE__*/React.createElement("div",{className:"text-[11px] font-bold text-teal-300 flex items-center gap-1.5"},/*#__PURE__*/React.createElement("i",{"data-lucide":"plug",className:"w-3 h-3"})," ",f.name||f.id),/*#__PURE__*/React.createElement("div",{className:"text-[9px] text-slate-500 font-mono truncate"},f.path))))));};// GUI embed state survives FXRackModal unmount so the native window
+const VST_FX_CATEGORIES=[{id:'all',label:'Tất cả'},{id:'equalizer',label:'Equalizers / Dynamic EQ'},{id:'reverb_delay',label:'Reverbs & Delays'},{id:'comp_limiter',label:'Compressors & Limiters'},{id:'distortion',label:'Distortion / Saturation'},{id:'utility',label:'Utility'}];const VstPluginPicker=({open,onClose,plugins,onPick,loading})=>{const[cat,setCat]=React.useState('all');React.useEffect(()=>{if(open)setCat('all');},[open]);if(!open)return null;const list=(plugins||[]).filter(p=>cat==='all'||(p.category||'utility')===cat);return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-[125] bg-black/80 backdrop-blur-sm flex items-center justify-center p-4",onClick:onClose},/*#__PURE__*/React.createElement("div",{className:"w-full max-w-2xl bg-slate-900 border border-slate-700 rounded-2xl p-5 space-y-4 shadow-2xl max-h-[80vh] flex flex-col",onClick:e=>e.stopPropagation()},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between border-b border-slate-800 pb-3"},/*#__PURE__*/React.createElement("h3",{className:"text-xs font-bold text-white uppercase tracking-wider font-mono"},"CH\u1ECCN VST FX \u2014 PLUGIN PICKER"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"text-slate-400 hover:text-white"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("div",{className:"flex flex-wrap gap-1.5 shrink-0"},VST_FX_CATEGORIES.map(c=>/*#__PURE__*/React.createElement("button",{key:c.id,onClick:()=>setCat(c.id),className:`px-2.5 py-1 rounded text-[10px] font-semibold transition ${cat===c.id?'bg-teal-700 text-white':'bg-slate-800 hover:bg-slate-700 text-slate-300'}`},c.label))),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-y-auto oz-scrollbar grid grid-cols-2 gap-2"},loading&&/*#__PURE__*/React.createElement("div",{className:"col-span-2 text-[11px] text-amber-300 font-mono py-10 text-center animate-pulse"},"\u0110ang qu\xE9t VST FX..."),!loading&&list.length===0&&/*#__PURE__*/React.createElement("div",{className:"col-span-2 text-[11px] text-slate-500 font-mono py-10 text-center"},"Kh\xF4ng c\xF3 VST FX trong m\u1EE5c n\xE0y."),!loading&&list.map(f=>/*#__PURE__*/React.createElement("button",{key:f.path,onClick:()=>{onPick(f);onClose();},className:"p-2 bg-slate-950 hover:bg-slate-800 border border-slate-800 rounded-lg text-left space-y-0.5 transition-colors"},/*#__PURE__*/React.createElement("div",{className:"text-[11px] font-bold text-teal-300 flex items-center gap-1.5"},/*#__PURE__*/React.createElement("i",{"data-lucide":"plug",className:"w-3 h-3"})," ",f.name||f.id),/*#__PURE__*/React.createElement("div",{className:"text-[9px] text-slate-500 font-mono truncate"},f.path))))));};// GUI embed state survives FXRackModal unmount so the native window
 // re-shows automatically when the rack is reopened (close/reopen bug).
 let _persistFxGuiOpen=null;// Track id whose rack owns the currently-open embedded GUI (for save).
 let _persistFxGuiTrackId=null;// Latest preset_b64 captured from each plugin's embedded GUI (poll /preset)
@@ -850,7 +822,7 @@ ctx.strokeStyle='rgba(51, 65, 85, 0.35)';for(let i=1;i<5;i++){const y=i/5*h;ctx.
 const bands=[{type:'lowshelf',f0:100,gain:ap.g1||0,q:0.7},{type:'peaking',f0:800,gain:ap.g2||0,q:0.7},{type:'peaking',f0:3200,gain:ap.g3||0,q:1.2},{type:'highshelf',f0:10000,gain:ap.g4||0,q:0.7}];const pts=[];const N=120;for(let i=0;i<=N;i++){const f=20*Math.pow(20000/20,i/N);let db=0;bands.forEach(b=>{const lf=Math.log(f/b.f0);if(b.type==='peaking'){db+=b.gain/(1+Math.pow(lf*b.q,2));}else if(b.type==='highshelf'){db+=b.gain/2*(1+2/Math.PI*Math.atan(lf/(1/b.q)));}else{db+=b.gain/2*(1-2/Math.PI*Math.atan(lf/(1/b.q)));}});const x=i/N*w;const y=midY-db/12*(h/2);pts.push([x,y]);}// fill
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cursor-pointer",style:{accentColor:'#38bdf8'}})),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1.5"},/*#__PURE__*/React.createElement("span",{className:"text-slate-500 text-[10px]"},"V.Zoom:"),/*#__PURE__*/React.createElement("span",{className:"text-cyan-400 font-bold text-[11px] w-12"},scopeZoom>0?'+':'',scopeZoom.toFixed(1)," dB"),/*#__PURE__*/React.createElement("input",{type:"range",min:"-12",max:"20",step:"0.5",value:scopeZoom,onChange:e=>setScopeZoom(parseFloat(e.target.value)),className:"w-16 h-1 cursor-pointer",style:{accentColor:'#38bdf8'}})),/*#__PURE__*/React.createElement("button",{onClick:()=>setScopePaused(p=>!p),className:`px-3 py-1 font-semibold rounded text-[11px] border transition-colors ${scopePaused?'bg-amber-600 border-amber-400 text-white':'bg-slate-800 hover:bg-slate-700 text-slate-300 border-slate-700'}`},scopePaused?'Resume':'Pause'))))),addModuleOpen&&/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-[120] bg-black/80 backdrop-blur-sm flex items-center justify-center p-4",onClick:()=>setAddModuleOpen(false)},/*#__PURE__*/React.createElement("div",{className:"w-full max-w-lg bg-slate-900 border border-slate-700 rounded-2xl p-5 space-y-4 shadow-2xl max-h-[80vh] overflow-y-auto",onClick:e=>e.stopPropagation()},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between border-b border-slate-800 pb-3"},/*#__PURE__*/React.createElement("h3",{className:"text-xs font-bold text-white uppercase tracking-wider font-mono"},"TH\xCAM MODULE V\xC0O FX CHAIN"),/*#__PURE__*/React.createElement("button",{onClick:()=>setAddModuleOpen(false),className:"text-slate-400 hover:text-white"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-2 gap-3 text-xs"},Object.keys(TRACK_FX_META).map(t=>{const meta=TRACK_FX_META[t];return/*#__PURE__*/React.createElement("button",{key:t,onClick:()=>addMod(t),className:"p-3 bg-slate-950 hover:bg-slate-800 border border-slate-800 rounded-xl text-left space-y-1 transition-colors"},/*#__PURE__*/React.createElement("div",{className:"font-bold flex items-center gap-1.5",style:{color:meta.color}},/*#__PURE__*/React.createElement("i",{"data-lucide":meta.icon,className:"w-3.5 h-3.5"})," ",meta.name),/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-slate-400"},meta.sub));})))),/*#__PURE__*/React.createElement(VstPluginPicker,{open:vstPickerOpen,onClose:()=>setVstPickerOpen(false),plugins:fxList,loading:fxLoading,onPick:f=>addVst(f.path)}));};// ──────────────────────────────────────────────
 // MASTERING MODAL COMPONENT (from md/45_MASTERING_MODULE.md)
 // ──────────────────────────────────────────────
 // GUI embed state survives MasteringModal unmount so the native window
@@ -901,13 +873,11 @@ if(woLeftMeterRef.current&&woRightMeterRef.current){const lPct=Math.min(100,left
 if(woChannelRef.current==='stereo'||woChannelRef.current==='left'){woCtx.strokeStyle='#22d3ee';woCtx.lineWidth=1.2;woCtx.beginPath();for(let i=0;i<lHistory.length;i++){const x=i/(lHistory.length-1)*w;const val=lHistory[i]*zoomGain;const y=centerY-val*centerY;if(i===0)woCtx.moveTo(x,y);else woCtx.lineTo(x,y);}woCtx.stroke();if(woModeRef.current==='envelope'){woCtx.beginPath();for(let i=0;i<lHistory.length;i++){const x=i/(lHistory.length-1)*w;const val=lHistory[i]*zoomGain;const y=centerY+val*centerY;if(i===0)woCtx.moveTo(x,y);else woCtx.lineTo(x,y);}woCtx.stroke();}}// Right channel line (teal)
 if(woChannelRef.current==='stereo'||woChannelRef.current==='right'){woCtx.strokeStyle='#0d9488';woCtx.lineWidth=1.2;woCtx.beginPath();for(let i=0;i<rHistory.length;i++){const x=i/(rHistory.length-1)*w;const val=rHistory[i]*zoomGain;const y=centerY-val*centerY;if(i===0)woCtx.moveTo(x,y);else woCtx.lineTo(x,y);}woCtx.stroke();if(woModeRef.current==='envelope'){woCtx.beginPath();for(let i=0;i<rHistory.length;i++){const x=i/(rHistory.length-1)*w;const val=rHistory[i]*zoomGain;const y=centerY+val*centerY;if(i===0)woCtx.moveTo(x,y);else woCtx.lineTo(x,y);}woCtx.stroke();}}}}renderFrame();return()=>{window.removeEventListener('resize',resizeAll);if(animFrameRef.current)cancelAnimationFrame(animFrameRef.current);};},[isOpen]);React.useEffect(()=>{if(!isOpen){stopAudioDemo();knobsInitializedRef.current=false;}else{setTimeout(()=>{try{window.lucide.createIcons();}catch(e){}},100);}},[isOpen]);// Hooks MUST be declared before the early return below — React requires a
 // stable hook count across renders (error #310 otherwise).
-const dragChainIndexRef=React.useRef(null);const[addModuleOpen,setAddModuleOpen]=React.useState(false);// Carla Bridge (VST FX) — danh sách VST để load vào Carla (master chain)
-const[masterCarlaVsts,setMasterCarlaVsts]=React.useState(null);// null = chưa load
-React.useEffect(()=>{if(isOpen&&window.SonicAPI&&window.SonicAPI.listPlugins){window.SonicAPI.listPlugins().then(d=>setMasterCarlaVsts(d&&d.vst_instruments||[])).catch(()=>setMasterCarlaVsts([]));}},[isOpen]);if(!isOpen)return null;const switchModule=name=>setOzState(prev=>({...prev,activeModule:name}));// ── Mastering expand: dynamic module chain (mastering_expand.md §II.3) ──
-const MODULE_META={eq:{name:'Dynamic EQ',sub:'4-Band Peak',icon:'activity',color:'#22d3ee'},eqpro:{name:'Parametric / Graphic EQ PRO',sub:'Pro-Q style · 8 bands · interactive',icon:'chart-area',color:'#2dd4bf'},imager:{name:'Imager',sub:'4-Band Width',icon:'radio',color:'#a855f7'},maximizer:{name:'Maximizer',sub:'IRC IV True Peak',icon:'gauge',color:'#34d399'},compressor:{name:'Bus Compressor',sub:'Glue & Punch',icon:'compress',color:'#fbbf24'},limiter:{name:'Brickwall Limiter',sub:'True-Peak 20:1',icon:'shield-half',color:'#f43f5e'},exciter:{name:'Harmonic Exciter',sub:'Saturation & Air',icon:'wand-2',color:'#c084fc'},rebalance:{name:'Master Rebalance',sub:'M/S Balance',icon:'sliders-horizontal',color:'#38bdf8'},carla:{name:'Carla Bridge (VST FX)',sub:'Native VST audio processing',icon:'sliders',color:'#14b8a6'},vst3:{name:'VST FX',sub:'VST3 plugin',icon:'plug',color:'#2dd4bf'}};const chainFlag=type=>type==='eq'?'eqActive':type==='eqpro'?'eqproActive':type==='imager'?'imagerActive':type==='maximizer'?'maximizerActive':type==='compressor'?'compActive':type==='limiter'?'limActive':type==='exciter'?'excActive':type==='carla'?'carlaBridgeActive':type==='vst3'?'vstFxActive':'rebalActive';const chainActive=type=>!!ozState[chainFlag(type)];const toggleChainModule=modId=>{setOzState(prev=>{const chain=prev.chain.map(m=>{if(m.id!==modId)return m;const next=!m.active;return{...m,active:next};});const flags={};chain.forEach(m=>{flags[chainFlag(m.type)]=!!m.active;});const target=chain.find(m=>m.id===modId);let vstFxChain=prev.vstFxChain||[];if(target&&target.type==='vst3'){const vi=vstFxChain.findIndex(s=>s.path===target.path);if(vi>=0)vstFxChain=vstFxChain.map((s,si)=>si===vi?{...s,bypass:!target.active}:s);}return{...prev,chain,...flags,vstFxChain};});};const removeChainModule=modId=>{const removedMod=(ozState.chain||[]).find(m=>m.id===modId);if(removedMod&&removedMod.type==='vst3'&&masterGuiOpen&&masterGuiOpen.path===removedMod.path)closeMasterGui();setOzState(prev=>{const removed=prev.chain.find(m=>m.id===modId);const chain=prev.chain.filter(m=>m.id!==modId);const flags={};chain.forEach(m=>{flags[chainFlag(m.type)]=!!m.active;});const activeModule=prev.activeModule;let vstFxChain=prev.vstFxChain||[];if(removed&&removed.type==='vst3'){const vi=vstFxChain.findIndex(s=>s.path===removed.path);if(vi>=0)vstFxChain=[...vstFxChain.slice(0,vi),...vstFxChain.slice(vi+1)];}return{...prev,chain,...flags,vstFxChain,activeModule:chain.length?chain.some(m=>m.type===activeModule)?activeModule:chain[chain.length-1].type:null};});};const reorderChain=(fromIdx,toIdx)=>{if(fromIdx===toIdx)return;setOzState(prev=>{const chain=[...prev.chain];const moved=chain.splice(fromIdx,1)[0];chain.splice(toIdx,0,moved);return{...prev,chain};});};const addModuleToChain=type=>{const meta=MODULE_META[type];const id='mod_'+type+'_'+Date.now();const entry={id,type,name:meta.name,active:true};if(type==='eqpro')entry.params={amount:100,bands:JSON.parse(JSON.stringify(EQPRO_DEFAULT_BANDS))};if(type==='carla')entry.params={plugin:'',plugin_path:''};setOzState(prev=>({...prev,chain:[...(prev.chain||[]),entry],[chainFlag(type)]:true,activeModule:type}));setAddModuleOpen(false);};const addVstToChain=path=>{const fx=(masterFxList||[]).find(f=>f.path===path);if(!fx)return;const id='mod_vst_'+Date.now();const entry={id,type:'vst3',path:fx.path,name:fx.name||fx.id,preset_b64:'',bypass:false,active:true};setOzState(prev=>({...prev,chain:[...(prev.chain||[]),entry],vstFxChain:[...(prev.vstFxChain||[]),{type:'vst3',path:fx.path,name:fx.name||fx.id,preset_b64:'',bypass:false}]}));setAddModuleOpen(false);};const updateChainEntryParams=(modId,patch)=>{setOzState(prev=>({...prev,chain:(prev.chain||[]).map(m=>m.id===modId?{...m,params:{...(m.params||{}),...patch}}:m)}));};// ── EQ Preset Library (mastering_expand.md §II.1) ──
+const dragChainIndexRef=React.useRef(null);const[addModuleOpen,setAddModuleOpen]=React.useState(false);if(!isOpen)return null;const switchModule=name=>setOzState(prev=>({...prev,activeModule:name}));// ── Mastering expand: dynamic module chain (mastering_expand.md §II.3) ──
+const MODULE_META={eq:{name:'Dynamic EQ',sub:'4-Band Peak',icon:'activity',color:'#22d3ee'},eqpro:{name:'Parametric / Graphic EQ PRO',sub:'Pro-Q style · 8 bands · interactive',icon:'chart-area',color:'#2dd4bf'},imager:{name:'Imager',sub:'4-Band Width',icon:'radio',color:'#a855f7'},maximizer:{name:'Maximizer',sub:'IRC IV True Peak',icon:'gauge',color:'#34d399'},compressor:{name:'Bus Compressor',sub:'Glue & Punch',icon:'compress',color:'#fbbf24'},limiter:{name:'Brickwall Limiter',sub:'True-Peak 20:1',icon:'shield-half',color:'#f43f5e'},exciter:{name:'Harmonic Exciter',sub:'Saturation & Air',icon:'wand-2',color:'#c084fc'},rebalance:{name:'Master Rebalance',sub:'M/S Balance',icon:'sliders-horizontal',color:'#38bdf8'},vst3:{name:'VST FX',sub:'VST3 plugin',icon:'plug',color:'#2dd4bf'}};const chainFlag=type=>type==='eq'?'eqActive':type==='eqpro'?'eqproActive':type==='imager'?'imagerActive':type==='maximizer'?'maximizerActive':type==='compressor'?'compActive':type==='limiter'?'limActive':type==='exciter'?'excActive':type==='vst3'?'vstFxActive':'rebalActive';const chainActive=type=>!!ozState[chainFlag(type)];const toggleChainModule=modId=>{setOzState(prev=>{const chain=prev.chain.map(m=>{if(m.id!==modId)return m;const next=!m.active;return{...m,active:next};});const flags={};chain.forEach(m=>{flags[chainFlag(m.type)]=!!m.active;});const target=chain.find(m=>m.id===modId);let vstFxChain=prev.vstFxChain||[];if(target&&target.type==='vst3'){const vi=vstFxChain.findIndex(s=>s.path===target.path);if(vi>=0)vstFxChain=vstFxChain.map((s,si)=>si===vi?{...s,bypass:!target.active}:s);}return{...prev,chain,...flags,vstFxChain};});};const removeChainModule=modId=>{const removedMod=(ozState.chain||[]).find(m=>m.id===modId);if(removedMod&&removedMod.type==='vst3'&&masterGuiOpen&&masterGuiOpen.path===removedMod.path)closeMasterGui();setOzState(prev=>{const removed=prev.chain.find(m=>m.id===modId);const chain=prev.chain.filter(m=>m.id!==modId);const flags={};chain.forEach(m=>{flags[chainFlag(m.type)]=!!m.active;});const activeModule=prev.activeModule;let vstFxChain=prev.vstFxChain||[];if(removed&&removed.type==='vst3'){const vi=vstFxChain.findIndex(s=>s.path===removed.path);if(vi>=0)vstFxChain=[...vstFxChain.slice(0,vi),...vstFxChain.slice(vi+1)];}return{...prev,chain,...flags,vstFxChain,activeModule:chain.length?chain.some(m=>m.type===activeModule)?activeModule:chain[chain.length-1].type:null};});};const reorderChain=(fromIdx,toIdx)=>{if(fromIdx===toIdx)return;setOzState(prev=>{const chain=[...prev.chain];const moved=chain.splice(fromIdx,1)[0];chain.splice(toIdx,0,moved);return{...prev,chain};});};const addModuleToChain=type=>{const meta=MODULE_META[type];const id='mod_'+type+'_'+Date.now();const entry={id,type,name:meta.name,active:true};if(type==='eqpro')entry.params={amount:100,bands:JSON.parse(JSON.stringify(EQPRO_DEFAULT_BANDS))};setOzState(prev=>({...prev,chain:[...(prev.chain||[]),entry],[chainFlag(type)]:true,activeModule:type}));setAddModuleOpen(false);};const addVstToChain=path=>{const fx=(masterFxList||[]).find(f=>f.path===path);if(!fx)return;const id='mod_vst_'+Date.now();const entry={id,type:'vst3',path:fx.path,name:fx.name||fx.id,preset_b64:'',bypass:false,active:true};setOzState(prev=>({...prev,chain:[...(prev.chain||[]),entry],vstFxChain:[...(prev.vstFxChain||[]),{type:'vst3',path:fx.path,name:fx.name||fx.id,preset_b64:'',bypass:false}]}));setAddModuleOpen(false);};const updateChainEntryParams=(modId,patch)=>{setOzState(prev=>({...prev,chain:(prev.chain||[]).map(m=>m.id===modId?{...m,params:{...(m.params||{}),...patch}}:m)}));};// ── EQ Preset Library (mastering_expand.md §II.1) ──
 const EQ_PRESET_LIBRARY={flat:{name:'Flat / Reset',bands:[{id:1,type:'lowshelf',freq:100,gain:0.0,q:0.7},{id:2,type:'peaking',freq:800,gain:0.0,q:0.7},{id:3,type:'peaking',freq:3200,gain:0.0,q:1.2},{id:4,type:'highshelf',freq:10000,gain:0.0,q:0.7}]},vocal_clarity:{name:'Vocal Unmask & Clarity',bands:[{id:1,type:'lowshelf',freq:90,gain:-2.5,q:0.7},{id:2,type:'peaking',freq:500,gain:-1.8,q:1.0},{id:3,type:'peaking',freq:2800,gain:3.2,q:1.2},{id:4,type:'highshelf',freq:12000,gain:2.0,q:0.7}]},bass_punch:{name:'EDM Low-End Punch',bands:[{id:1,type:'lowshelf',freq:80,gain:4.0,q:0.8},{id:2,type:'peaking',freq:300,gain:-3.0,q:1.4},{id:3,type:'peaking',freq:4000,gain:1.5,q:1.0},{id:4,type:'highshelf',freq:10000,gain:1.0,q:0.7}]},warm_tape:{name:'Warm Vintage Analog',bands:[{id:1,type:'lowshelf',freq:120,gain:2.0,q:0.6},{id:2,type:'peaking',freq:1500,gain:1.0,q:0.5},{id:3,type:'peaking',freq:5000,gain:-2.0,q:1.0},{id:4,type:'highshelf',freq:8000,gain:-3.0,q:0.7}]}};const applyEQPreset=presetKey=>{const preset=EQ_PRESET_LIBRARY[presetKey];if(!preset)return;const bus=masterBus;if(bus&&bus.eqLowFilter){const now=audioCtx?audioCtx.currentTime:0;const filters=[bus.eqLowFilter,bus.eqMid1Filter,bus.eqMid2Filter,bus.eqHighFilter];preset.bands.forEach((bd,i)=>{const f=filters[i];if(!f)return;try{// setValueAtTime (không automation) — tránh "BiquadFilterNode: state is bad"
 f.frequency.setValueAtTime(bd.freq,now);f.gain.setValueAtTime(bd.gain,now);f.Q.setValueAtTime(bd.q,now);}catch(e){}});}// Sync UI knobs + canvas: [eqLowGain, eqMid1Gain, eqMid2Gain, eqHighGain]
-setOzState(prev=>({...prev,eqLowGain:preset.bands[0]?preset.bands[0].gain:prev.eqLowGain,eqMid1Gain:preset.bands[1]?preset.bands[1].gain:prev.eqMid1Gain,eqMid2Gain:preset.bands[2]?preset.bands[2].gain:prev.eqMid2Gain,eqHighGain:preset.bands[3]?preset.bands[3].gain:prev.eqHighGain,eqPreset:presetKey}));};const bandKnob=(param,min,max,val,unit,label,freq,color,filterType)=>/*#__PURE__*/React.createElement("div",{className:"bg-slate-900/80 border border-slate-800 p-2 flex flex-col justify-between items-center rounded-lg"},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between text-[10px] font-bold w-full",style:{color}},/*#__PURE__*/React.createElement("span",null,label),/*#__PURE__*/React.createElement("span",{className:"text-[9px] font-mono text-slate-400"},freq)),/*#__PURE__*/React.createElement("div",{className:"my-1"},/*#__PURE__*/React.createElement(MasteringKnob,{param:param,min:min,max:max,value:ozState[param]!==undefined?ozState[param]:val,unit:unit,color:color,onChange:(p,v)=>setOzState(prev=>({...prev,[p]:v}))})),/*#__PURE__*/React.createElement("div",{className:"text-[9px] text-slate-500 font-mono text-center mt-1"},filterType));return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-[100] flex items-center justify-center bg-black/70 backdrop-blur-sm",onClick:onClose},/*#__PURE__*/React.createElement("div",{id:"masteringModalBody",className:"flex flex-col bg-slate-950 text-slate-200 w-[95vw] h-[92vh] max-w-[1400px] rounded-2xl border border-slate-800/80 shadow-2xl overflow-hidden",onClick:e=>e.stopPropagation(),style:{fontFamily:"'Inter', sans-serif"}},/*#__PURE__*/React.createElement("header",{className:"h-12 bg-slate-900/90 border-b border-slate-800/80 flex items-center justify-between px-4 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 const MEDIA_LIBRARY_SAMPLES=[{name:"MIDI_Loop_01.mid",events:95,lengthQn:16,time:"0:08.000",tpqn:480,bpm:130,kind:"midi"},{name:"MIDI_Loop_02_Bass.mid",events:48,lengthQn:16,time:"0:08.000",tpqn:480,bpm:130,kind:"midi"},{name:"MIDI_Loop_03_Lead.mid",events:110,lengthQn:16,time:"0:08.000",tpqn:480,bpm:130,kind:"midi"},{name:"MIDI_Loop_04.mid",events:76,lengthQn:16,time:"0:08.000",tpqn:480,bpm:130,kind:"midi"},{name:"MIDI_Loop_05_Bass.mid",events:52,lengthQn:16,time:"0:08.000",tpqn:480,bpm:130,kind:"midi"},{name:"MIDI_Loop_06.mid",events:88,lengthQn:16,time:"0:08.000",tpqn:480,bpm:130,kind:"midi"}];const MediaExplorerPanel=({height,clipboardRef,active})=>{const[userFiles,setUserFiles]=React.useState([]);const[folder,setFolder]=React.useState('library');const[selected,setSelected]=React.useState(null);const[filterText,setFilterText]=React.useState('');const[viewMode,setViewMode]=React.useState('details');const[isPlaying,setIsPlaying]=React.useState(false);const[isPaused,setIsPaused]=React.useState(false);const[isLooping,setIsLooping]=React.useState(false);const[autoPlay,setAutoPlay]=React.useState(true);const[pitch,setPitch]=React.useState(0.0);const[rate,setRate]=React.useState(1.0);const[volumeDb,setVolumeDb]=React.useState(0.0);const[currentTime,setCurrentTime]=React.useState(0);const[peaks,setPeaks]=React.useState(null);const[audioBuffer,setAudioBuffer]=React.useState(null);const[audioDuration,setAudioDuration]=React.useState(0);const[midiNotes,setMidiNotes]=React.useState(null);const[midiTotal,setMidiTotal]=React.useState(4);const[midiBars,setMidiBars]=React.useState(1);const[midiTotalBeats,setMidiTotalBeats]=React.useState(16);const[midiFileBpm,setMidiFileBpm]=React.useState(120);const[tempo,setTempo]=React.useState(function(){var saved=localStorage.getItem('studio_media_explorer_tempo');return saved?parseInt(saved):120;});const[tempoText,setTempoText]=React.useState(String(function(){var saved=localStorage.getItem('studio_media_explorer_tempo');return saved?parseInt(saved):120;}()));const[zoom,setZoom]=React.useState(1.0);// Đồng bộ zoom ra window ref — serializeProjectToSchema lưu vào metadata.zoom
 // (module-level không truy cập state) → restore/open khôi phục đúng zoom.
 React.useEffect(()=>{window.__currentZoom=zoom;},[zoom]);const[scrollOffset,setScrollOffset]=React.useState(0);const scrollOffsetRef=React.useRef(0);scrollOffsetRef.current=scrollOffset;const[selStart,setSelStart]=React.useState(null);const[selEnd,setSelEnd]=React.useState(null);const[isDragging,setIsDragging]=React.useState(false);const[previewCtxMenu,setPreviewCtxMenu]=React.useState(null);// { x, y }
@@ -997,17 +967,17 @@ isLoopingRef.current=next;const cur=selectedRef.current;const st=playStateRef.cu
 // the loop points to the current selection so it loops continuously
 // over the selected region until Stop is pressed.
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border-[#3a3a3a] p-1.5 font-mono text-[10px] text-slate-300 leading-tight overflow-y-auto shrink-0"},selected?selIsMidi&&!selected.path?/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",null,selected.events," MIDI events"),/*#__PURE__*/React.createElement("div",null,"Length: ",selected.lengthQn," quarter notes"),/*#__PURE__*/React.createElement("div",null,"Length: ",selected.time," (est)"),/*#__PURE__*/React.createElement("div",null,"Ticks per quarter note: ",selected.tpqn)):/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",null,"Size: ",selected.size_mb!=null?selected.size_mb.toFixed(2)+' MB':'-'),selIsMidi?/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",null,"Bars: ",midiBars||1),/*#__PURE__*/React.createElement("div",null,"Beats: ",Math.round(midiTotalBeats||16)),/*#__PURE__*/React.createElement("div",null,"BPM: 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+const btnRect=btnSynthRef.current?btnSynthRef.current.getBoundingClientRect():null;return ReactDOM.createPortal(/*#__PURE__*/React.createElement("div",{className:"fixed z-40 w-64 bg-white border border-[#808080] shadow-xl rounded-sm text-xs text-slate-800 font-sans max-h-72 overflow-y-auto",style:{left:btnRect?btnRect.left:0,bottom:btnRect?window.innerHeight-btnRect.top+8:0}},/*#__PURE__*/React.createElement("div",{className:"sticky top-0 bg-[#e0e0e0] px-2 py-1 font-bold border-b border-[#a0a0a0] flex items-center justify-between z-20"},/*#__PURE__*/React.createElement("span",null,"Select Instrument"),/*#__PURE__*/React.createElement("button",{onClick:()=>setSynthOpen(false),className:"text-slate-500 hover:text-slate-900"},/*#__PURE__*/React.createElement("i",{className:"fa-solid fa-xmark"}))),/*#__PURE__*/React.createElement("div",{className:"sticky top-[23px] bg-white p-1 border-b border-[#c0c0c0] z-20 flex items-center gap-1"},/*#__PURE__*/React.createElement("i",{className:"fa-solid fa-magnifying-glass text-slate-400 pl-1 text-[10px]"}),/*#__PURE__*/React.createElement("input",{type:"text",placeholder:"T\xECm nh\u1EA1c c\u1EE5...",value:synthFilter,onChange:e=>setSynthFilter(e.target.value),onClick:e=>e.stopPropagation(),className:"w-full px-1 py-0.5 border border-[#c0c0c0] rounded-sm text-xs font-sans focus:outline-none focus:border-blue-500"}),synthFilter&&/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();setSynthFilter('');},className:"text-slate-400 hover:text-slate-700 px-1"},/*#__PURE__*/React.createElement("i",{className:"fa-solid fa-xmark text-[10px]"}))),synthLoading&&/*#__PURE__*/React.createElement("div",{className:"px-2 py-2 text-slate-400 italic"},"Loading..."),!synthLoading&&(!synthList||synthList.length===0)&&/*#__PURE__*/React.createElement("div",{className:"px-2 py-2 text-slate-400 italic"},"Kh\xF4ng c\xF3 SoundFont 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${synthInst&&synthInst.program===p.program&&synthInst.sfId===(group.sf.id||group.sf.name)?'bg-slate-200':''}`,onClick:()=>selectSynthInst({sfId:group.sf.id,sfName:group.sf.display||group.sf.name||group.sf.id,bank:p.bank||0,program:p.program,name:p.name||'Program '+p.program})},p.bank===128?/*#__PURE__*/React.createElement("i",{className:"fa-solid fa-drum text-slate-400"}):/*#__PURE__*/React.createElement("i",{className:"fa-solid fa-music text-slate-400"})," ",p.name||'Program '+p.program);}))),!synthLoading&&filteredSynthList&&filteredSynthList.length===0&&synthFilter&&/*#__PURE__*/React.createElement("div",{className:"px-2 py-2 text-slate-400 italic"},"Kh\xF4ng t\xECm th\u1EA5y nh\u1EA1c c\u1EE5 tr\xF9ng kh\u1EDBp")),document.body);})()),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1",title:"Tempo preview MIDI"},/*#__PURE__*/React.createElement("span",{className:"font-mono text-[10px] text-slate-700"},"Tempo:"),/*#__PURE__*/React.createElement("button",{className:"px-1 bg-[#e0e0e0] hover:bg-white border border-[#707070] rounded-sm text-[10px]",onClick:()=>commitTempo((tempo||120)-1)},"-"),/*#__PURE__*/React.createElement("div",{className:"bg-white border border-[#808080] px-1 h-5 flex items-center w-14"},/*#__PURE__*/React.createElement("input",{type:"number",min:"40",max:"300",value:tempoText,onChange:e=>{const raw=e.target.value;setTempoText(raw);const n=parseInt(raw);if(n>=40&&n<=300)commitTempo(n);},onBlur:()=>{const n=parseInt(tempoText);commitTempo(n);},onKeyDown:e=>{if(e.key==='Enter'){e.currentTarget.blur();}},className:"w-full text-xs text-right outline-none bg-transparent"})),/*#__PURE__*/React.createElement("button",{className:"px-1 bg-[#e0e0e0] hover:bg-white border border-[#707070] rounded-sm text-[10px]",onClick:()=>commitTempo((tempo||120)+1)},"+"),/*#__PURE__*/React.createElement("span",{className:"text-slate-600 text-[10px]"},"BPM"))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-3 font-mono text-[11px]"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("span",null,"Pitch:"),/*#__PURE__*/React.createElement("button",{className:"px-1 bg-[#e0e0e0] hover:bg-white border border-[#707070] rounded-sm text-[10px]",onClick:()=>togglePitch(-0.5)},"-"),/*#__PURE__*/React.createElement("div",{className:"bg-white border border-[#808080] px-1 h-5 flex items-center w-14"},/*#__PURE__*/React.createElement("input",{type:"number",value:pitch.toFixed(1),step:"0.5",onChange:e=>setPitch(parseFloat(e.target.value)||0),className:"w-full text-xs text-right outline-none bg-transparent"})),/*#__PURE__*/React.createElement("button",{className:"px-1 bg-[#e0e0e0] hover:bg-white border border-[#707070] rounded-sm text-[10px]",onClick:()=>togglePitch(0.5)},"+")),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("span",null,"Rate:"),/*#__PURE__*/React.createElement("div",{className:"bg-white border border-[#808080] px-1 h-5 flex items-center w-12"},/*#__PURE__*/React.createElement("input",{type:"number",value:rate.toFixed(2),step:"0.1",onChange:e=>setRate(Math.max(0.25,Math.min(4,parseFloat(e.target.value)||1))),className:"w-full text-xs text-right outline-none bg-transparent"})),/*#__PURE__*/React.createElement("button",{className:"w-5 h-5 bg-[#e0e0e0] hover:bg-white border border-[#707070] rounded-sm text-[9px]",onClick:()=>toggleRate(-1)},"-"),/*#__PURE__*/React.createElement("button",{className:"w-5 h-5 bg-[#e0e0e0] hover:bg-white border border-[#707070] rounded-sm text-[9px]",onClick:()=>toggleRate(1)},"+"))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2"},/*#__PURE__*/React.createElement("span",{className:"font-sans text-slate-700"},"Volume:"),/*#__PURE__*/React.createElement("input",{type:"range",min:"-60",max:"12",step:"0.5",value:volumeDb,onChange:e=>setVolumeDb(parseFloat(e.target.value)),className:"me-fader-slider w-24"}),/*#__PURE__*/React.createElement("div",{className:"bg-white border border-[#808080] px-1 h-5 flex items-center justify-center w-14 font-mono text-[11px]"},volumeDb<=-50?'-inf':volumeDb.toFixed(1)," dB")),/*#__PURE__*/React.createElement("div",{className:`px-2 py-0.5 border font-mono font-bold text-[10px] rounded-sm ${selIsMidi?'bg-purple-950 text-purple-300 border-purple-800':'bg-emerald-950 text-emerald-300 border-emerald-800'}`},selIsMidi?'MIDI':'Audio')),/*#__PURE__*/React.createElement("div",{className:"flex items-stretch gap-2 my-1 flex-1 min-h-0"},/*#__PURE__*/React.createElement("div",{className:"flex-1 bg-[#181818] border border-[#3a3a3a] relative overflow-hidden p-0.5"},/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,className:"w-full h-full block cursor-pointer",onMouseDown:handleCanvasMouseDown,onMouseMove:handleCanvasMouseMove,onMouseUp:handleCanvasMouseUp,onContextMenu:handleCanvasContextMenu}),/*#__PURE__*/React.createElement("div",{className:"absolute top-1.5 right-1.5 flex gap-1 z-10"},/*#__PURE__*/React.createElement("button",{className:"w-5 h-5 bg-[#2a2a2a] hover:bg-slate-700 border border-[#444] rounded flex items-center justify-center text-white text-xs font-bold select-none cursor-pointer",title:"Zoom In",onClick:()=>setZoom(prev=>Math.min(10.0,prev*1.25))},"+"),/*#__PURE__*/React.createElement("button",{className:"w-5 h-5 bg-[#2a2a2a] hover:bg-slate-700 border border-[#444] rounded flex items-center justify-center text-white text-xs font-bold select-none cursor-pointer",title:"Zoom Out",onClick:()=>setZoom(prev=>Math.max(0.2,prev/1.25))},"-"),/*#__PURE__*/React.createElement("button",{className:"w-5 h-5 bg-[#2a2a2a] hover:bg-slate-700 border border-[#444] rounded flex items-center justify-center text-white text-[9px] select-none cursor-pointer",title:"Reset Zoom",onClick:()=>setZoom(1.0)},"1x")),previewCtxMenu&&/*#__PURE__*/React.createElement("div",{className:"fixed bg-[#1e1e24] border border-[#3e3e4a] rounded shadow-md z-[9999] py-1 font-sans text-xs text-slate-300 w-32 cursor-pointer select-none",style:{top:previewCtxMenu.y,left:previewCtxMenu.x},onClick:e=>e.stopPropagation()},/*#__PURE__*/React.createElement("div",{className:"px-3 py-1.5 hover:bg-slate-700 hover:text-white flex items-center gap-2",onClick:()=>{handleCopySelection();setPreviewCtxMenu(null);}},/*#__PURE__*/React.createElement("i",{className:"fa-solid fa-copy"})," Copy"),/*#__PURE__*/React.createElement("div",{className:"px-3 py-1.5 hover:bg-slate-700 hover:text-white border-t border-[#3e3e4a] flex items-center gap-2",onClick:()=>setPreviewCtxMenu(null)},/*#__PURE__*/React.createElement("i",{className:"fa-solid fa-xmark"})," Cancel"))),/*#__PURE__*/React.createElement("div",{className:"w-48 bg-[#181818] border border-[#3a3a3a] p-1.5 font-mono text-[10px] text-slate-300 leading-tight overflow-y-auto shrink-0"},selected?selIsMidi&&!selected.path?/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",null,selected.events," MIDI events"),/*#__PURE__*/React.createElement("div",null,"Length: ",selected.lengthQn," quarter notes"),/*#__PURE__*/React.createElement("div",null,"Length: ",selected.time," (est)"),/*#__PURE__*/React.createElement("div",null,"Ticks per quarter note: ",selected.tpqn)):/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",null,"Size: ",selected.size_mb!=null?selected.size_mb.toFixed(2)+' MB':'-'),selIsMidi?/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",null,"Bars: ",midiBars||1),/*#__PURE__*/React.createElement("div",null,"Beats: ",Math.round(midiTotalBeats||16)),/*#__PURE__*/React.createElement("div",null,"BPM: ",midiFileBpm||120),/*#__PURE__*/React.createElement("div",null,"Duration: ",selDur.toFixed(2),"s")):/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",null,"Duration: ",selDur.toFixed(2),"s"),/*#__PURE__*/React.createElement("div",null,"Sample Rate: 44100 Hz"),/*#__PURE__*/React.createElement("div",null,"Type: ",selected.path?selected.kind==='other'?'Local File':'Local Audio':selected.type||'Audio'))):/*#__PURE__*/React.createElement("div",null,"No file selected"))),/*#__PURE__*/React.createElement("div",{className:"h-5 bg-[#c0c0c0] border-t border-white flex items-center justify-between text-[11px] font-mono px-1 shrink-0"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-3"},selIsMidi&&midiNotes&&midiNotes.length?/*#__PURE__*/React.createElement("div",{className:"bg-white border border-[#808080] px-1.5 text-slate-900 font-bold"},"Bar ",Math.max(1,Math.floor(currentTime/(4*60/(tempo||120)))+1)," / ",midiBars||1,/*#__PURE__*/React.createElement("span",{className:"text-slate-500 ml-1"},"| ",formatTime(currentTime)," / ",formatTime(selDur))):/*#__PURE__*/React.createElement("div",{className:"bg-white border border-[#808080] px-1.5 text-slate-900 font-bold"},formatTime(currentTime)," / ",formatTime(selDur))),/*#__PURE__*/React.createElement("div",{className:"text-slate-800 font-bold truncate max-w-[40%]"},selected?selected.name||selected.original_name:'No file selected'),/*#__PURE__*/React.createElement("div",{className:"text-slate-700"},selBpm," bpm x",rate.toFixed(2)))));};// ── Virtual MIDI Keyboard component (Phase 5) ──────────────────────────────
 // Floating draggable QWERTY keyboard — F2 / menu Tools. Không nuốt Space/R
 // (handler toàn cục chỉ bắt phím trong VKB_MAP). Persist localStorage.
 const VKB_WHITE_OFFSETS=[0,2,4,5,7,9,11,12,14,16,17,19,21,23,24];const VKB_BLACK_OFFSETS=[1,3,6,8,10,13,15,18,20,22];const VKB_KEY_LABELS=['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];const VKB_SCALES={'None':null,'Major':[0,2,4,5,7,9,11],'Minor':[0,2,3,5,7,8,10],'Pentatonic Major':[0,2,4,7,9],'Pentatonic Minor':[0,3,5,7,10],'Dorian':[0,2,3,5,7,9,10],'Mixolydian':[0,2,4,5,7,9,10]};const VirtualMidiKeyboard=({settings,onChange,tracks,activePitches,onNoteOn,onNoteOff,onClose})=>{const KEY_W=24;const KEY_H=84;const BLACK_W=14;const BLACK_H=54;const octave=Math.max(0,Math.min(7,parseInt(settings.octave)||4));const basePitch=(octave+1)*12;const scale=VKB_SCALES[settings.scale]||null;const inScale=pitch=>{if(!scale)return false;const pc=(pitch%12+12)%12;return scale.indexOf(pc)!==-1;};const velNum=Math.max(1,Math.min(127,parseInt(settings.velocity)||100));// Channel hiển thị: user đã chọn (1..16) hoặc mặc định = channel track arm/select đầu tiên
 let displayChannel=parseInt(settings.channel)||null;if(displayChannel===null){try{const trks=tracks||[];if(trks.length){const t=trks.find(x=>x.isArmed)||trks[0];displayChannel=assignTrackMidiChannel(t,trks)+1;}}catch(e){}if(displayChannel===null)displayChannel=1;}const startDrag=e=>{e.preventDefault();const sx=e.clientX,sy=e.clientY;const ox=settings.x,oy=settings.y;const onMove=ev=>{onChange({x:Math.max(-280,Math.min(window.innerWidth-80,ox+(ev.clientX-sx))),y:Math.max(0,Math.min(window.innerHeight-36,oy+(ev.clientY-sy)))});};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};const fireOn=(e,pitch)=>{e.preventDefault();e.stopPropagation();onNoteOn(pitch,velNum/127);};const whiteKeys=VKB_WHITE_OFFSETS.map(function(off,wi){const pitch=Math.min(127,basePitch+off);const active=activePitches&&activePitches.has(pitch);const sc=inScale(pitch);return/*#__PURE__*/React.createElement("div",{key:'vkbw'+off,onMouseDown:e=>fireOn(e,pitch),onMouseUp:()=>onNoteOff(pitch),onMouseLeave:()=>onNoteOff(pitch),style:{position:'absolute',left:wi*KEY_W,top:0,width:KEY_W,height:KEY_H,boxSizing:'border-box'},className:"flex items-end justify-center pb-1 text-[9px] font-bold cursor-pointer rounded-b transition "+(active?'bg-emerald-500 text-white':'bg-zinc-100 text-zinc-600 hover:bg-amber-100')+(sc?' ring-1 ring-inset ring-amber-400':'')},off%12===0?VKB_KEY_LABELS[0]+(Math.floor(pitch/12)-1):'');});const blackKeys=VKB_BLACK_OFFSETS.map(function(off){const pitch=Math.min(127,basePitch+off);const active=activePitches&&activePitches.has(pitch);const sc=inScale(pitch);const wi=VKB_WHITE_OFFSETS.indexOf(off-1);return/*#__PURE__*/React.createElement("div",{key:'vkbb'+off,onMouseDown:e=>fireOn(e,pitch),onMouseUp:()=>onNoteOff(pitch),onMouseLeave:()=>onNoteOff(pitch),style:{position:'absolute',left:(wi+1)*KEY_W-BLACK_W/2,top:0,width:BLACK_W,height:BLACK_H,boxSizing:'border-box',zIndex:5},className:"cursor-pointer rounded-b transition "+(active?'bg-emerald-600':'bg-zinc-950 hover:bg-zinc-800')+(sc?' ring-1 ring-inset ring-amber-400':'')});});return/*#__PURE__*/React.createElement("div",{style:{position:'fixed',left:settings.x,top:settings.y,zIndex:9990,width:15*KEY_W+12},className:"bg-[#1c1c1e] border border-zinc-700 rounded-xl shadow-2xl select-none"},/*#__PURE__*/React.createElement("div",{onMouseDown:startDrag,className:"flex items-center justify-between px-3 py-1.5 cursor-move bg-zinc-800 rounded-t-xl border-b border-zinc-700"},/*#__PURE__*/React.createElement("span",{className:"text-[10px] font-bold text-zinc-300 tracking-wide"},"VIRTUAL MIDI KEYBOARD"),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-zinc-500"},"F2"),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();onClose();},className:"text-zinc-500 hover:text-red-400 text-xs px-1"},"\u2715"))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2 px-2 py-1.5 border-b border-zinc-800 text-[10px] text-zinc-400 flex-wrap"},/*#__PURE__*/React.createElement("button",{onClick:()=>onChange({octave:Math.max(0,octave-1)}),className:"px-1.5 py-0.5 bg-zinc-800 hover:bg-zinc-700 rounded"},"Oct -"),/*#__PURE__*/React.createElement("span",{className:"font-mono text-amber-400"},"Octave: "+octave),/*#__PURE__*/React.createElement("button",{onClick:()=>onChange({octave:Math.min(7,octave+1)}),className:"px-1.5 py-0.5 bg-zinc-800 hover:bg-zinc-700 rounded"},"Oct +"),/*#__PURE__*/React.createElement("label",{className:"flex items-center gap-1"},"Vel",/*#__PURE__*/React.createElement("input",{type:"range",min:1,max:127,value:velNum,onChange:e=>onChange({velocity:parseInt(e.target.value)||100}),className:"w-16"}),/*#__PURE__*/React.createElement("span",{className:"font-mono w-7 text-right"},velNum)),/*#__PURE__*/React.createElement("label",{className:"flex items-center gap-1"},"Ch",/*#__PURE__*/React.createElement("select",{value:displayChannel,onChange:e=>onChange({channel:parseInt(e.target.value)}),className:"bg-zinc-800 text-zinc-300 rounded px-1 py-0.5"},Array.from({length:16},function(_,i){return/*#__PURE__*/React.createElement("option",{key:i+1,value:i+1},i+1);}))),/*#__PURE__*/React.createElement("label",{className:"flex items-center gap-1"},"Tr",/*#__PURE__*/React.createElement("input",{type:"number",min:-24,max:24,value:settings.transpose,onChange:e=>onChange({transpose:parseInt(e.target.value)||0}),className:"bg-zinc-800 text-zinc-300 rounded px-1 py-0.5 w-10 font-mono"})),/*#__PURE__*/React.createElement("label",{className:"flex items-center gap-1"},"Scale",/*#__PURE__*/React.createElement("select",{value:settings.scale,onChange:e=>onChange({scale:e.target.value}),className:"bg-zinc-800 text-zinc-300 rounded px-1 py-0.5"},Object.keys(VKB_SCALES).map(function(s){return/*#__PURE__*/React.createElement("option",{key:s,value:s},s);})))),/*#__PURE__*/React.createElement("div",{className:"relative mx-1 my-2",style:{width:15*KEY_W,height:KEY_H}},whiteKeys,blackKeys),/*#__PURE__*/React.createElement("div",{className:"px-2 pb-1.5 text-[9px] text-zinc-600"},"QWERTY: Z S X D C V G B H N J M / Q 2 W 3 E R 5 T 6 Y 7 U I"));};// ── Chords Panel (Phase 6) ─────────────────────────────────────────────
 // Floating chord progression panel — Insert menu / Shift+K / piano-roll
 // toolbar. Presets theo virtual_keyboard_and_chords_panel_spec.md §III.2.
-const CHORD_PRESETS=[{id:'pop',label:'Pop',genre:'Pop',tokens:'I-V-vi-IV',key:'C',voicing:'root',rhythm:'whole',hint:'C → G → Am → F'},{id:'jazz',label:'Jazz Neo-Soul',genre:'Jazz Neo-Soul',tokens:'ii7-V7-Imaj7-VI7',key:'C',voicing:'drop2',rhythm:'whole',hint:'Dm7 → G7 → Cmaj7 → A7'},{id:'cinematic',label:'Cinematic',genre:'Cinematic',tokens:'i-VI-III-VII',key:'C',voicing:'root',rhythm:'whole',hint:'Cm → Ab → Eb → Bb'},{id:'edm',label:'EDM',genre:'EDM',tokens:'vi-IV-I-V',key:'C',voicing:'first',rhythm:'quarter',hint:'Am → F → C → G'},{id:'lofi',label:'Lo-Fi',genre:'Lo-Fi',tokens:'i7-iv7-v7-i7',key:'C',voicing:'root',rhythm:'whole',hint:'Cm7 → Fm7 → Gm7 → Cm7'},{id:'rnb',label:'R&B',genre:'R&B',tokens:'Imaj7-iii7-IVmaj7-V13',key:'C',voicing:'root',rhythm:'whole',hint:'Cmaj7 → Em7 → Fmaj7 → G13'}];const CHORD_RHYTHM_BEATS={whole:4,quarter:1,arpeggio:1,strum:1};const CHORD_RHYTHM_LABELS={whole:'Whole (4 beats)',quarter:'Quarter (1 beat)',arpeggio:'Arpeggio',strum:'Strum'};const CHORD_KEYS=['C','C#','D','Eb','E','F','F#','G','Ab','A','Bb','B'];const CHORD_VOICING_LABELS={root:'Root',first:'1st Inv',drop2:'Drop 2'};const ChordsPanel=({onClose,onInsert,onNoteOn,onNoteOff,bpm})=>{const[tab,setTab]=useState('preset');const[search,setSearch]=useState('');const[key,setKey]=useState('C');const[favorites,setFavorites]=useState(function(){try{return JSON.parse(localStorage.getItem('daw_chord_favorites')||'[]');}catch(e){return[];}});const[customList,setCustomList]=useState(function(){try{return JSON.parse(localStorage.getItem('daw_user_custom_chords')||'[]');}catch(e){return[];}});const[cName,setCName]=useState('');const[cGenre,setCGenre]=useState('');const[cTokens,setCTokens]=useState('I-vi-IV-V');const[cRhythm,setCRhythm]=useState('whole');const[cVoicing,setCVoicing]=useState('root');const[customKey,setCustomKey]=useState('C');const previewTimerRef=useRef(null);useEffect(function(){const onSaved=function(){try{setCustomList(JSON.parse(localStorage.getItem('daw_user_custom_chords')||'[]'));}catch(e){}};window.addEventListener('CUSTOM_CHORD_SAVED',onSaved);return function(){window.removeEventListener('CUSTOM_CHORD_SAVED',onSaved);};},[]);useEffect(function(){try{localStorage.setItem('daw_chord_favorites',JSON.stringify(favorites));}catch(e){}},[favorites]);useEffect(function(){return function(){if(previewTimerRef.current)clearTimeout(previewTimerRef.current);};},[]);const resolveProgression=function(tokens,progKey,progVoicing){try{return(window.ChordTheory||ChordTheory).progressionToChords(tokens,progKey||key,progVoicing||'root');}catch(e){return[];}};const previewChord=function(chord){if(!chord||!chord.pitches||!chord.pitches.length)return;const vel=0.8;chord.pitches.forEach(function(p){try{onNoteOn(p,vel);}catch(e){}});if(previewTimerRef.current)clearTimeout(previewTimerRef.current);previewTimerRef.current=setTimeout(function(){chord.pitches.forEach(function(p){try{onNoteOff(p);}catch(e){}});},900);};const toggleFavorite=function(id){setFavorites(function(prev){return prev.indexOf(id)!==-1?prev.filter(function(x){return x!==id;}):prev.concat([id]);});};const insertProg=function(label,chords,rhythm){const dur=CHORD_RHYTHM_BEATS[rhythm]!=null?CHORD_RHYTHM_BEATS[rhythm]:4;const payload=(chords||[]).filter(function(c){return c.pitches&&c.pitches.length;}).map(function(c){return{name:c.name||c.token,pitches:c.pitches,duration_beats:dur};});if(!payload.length){if(window.showToast)window.showToast('Không có chord để chèn','warning');return;}onInsert({label:label,chords:payload});};const saveCustom=function(){const tokens=(cTokens||'').trim();if(!tokens){if(window.showToast)window.showToast('Nhập progression tokens','warning');return;}let chords=[];try{chords=(window.ChordTheory||ChordTheory).progressionToChords(tokens,customKey,cVoicing);}catch(e){}if(!chords.length||chords.some(function(c){return!c.pitches||!c.pitches.length;})){if(window.showToast)window.showToast('Progression không parse được','warning');return;}const entry={id:'custom_'+Date.now(),name:(cName||'').trim()||'My Chord',genre:(cGenre||'').trim()||'Custom',tokens:tokens,key:customKey,rhythm:cRhythm,voicing:cVoicing,chords:chords};try{const list=JSON.parse(localStorage.getItem('daw_user_custom_chords')||'[]');list.push(entry);localStorage.setItem('daw_user_custom_chords',JSON.stringify(list));setCustomList(list);window.dispatchEvent(new CustomEvent('CUSTOM_CHORD_SAVED'));if(window.showToast)window.showToast('Đã lưu chord custom: '+entry.name,'success');}catch(e){if(window.showToast)window.showToast('Lưu thất bại','error');}};const deleteCustom=function(id){try{const list=JSON.parse(localStorage.getItem('daw_user_custom_chords')||'[]').filter(function(x){return x.id!==id;});localStorage.setItem('daw_user_custom_chords',JSON.stringify(list));setCustomList(list);window.dispatchEvent(new CustomEvent('CUSTOM_CHORD_SAVED'));}catch(e){}};const q=(search||'').trim().toLowerCase();const filteredPresets=CHORD_PRESETS.filter(function(p){if(!q)return true;const chords=resolveProgression(p.tokens,key,p.voicing);const hay=(p.label+' '+p.genre+' '+p.hint+' '+chords.map(function(c){return c.name;}).join(' ')).toLowerCase();return hay.indexOf(q)!==-1;});return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-[9995] flex items-center justify-center bg-black/60 backdrop-blur-sm",onClick:onClose},/*#__PURE__*/React.createElement("div",{className:"bg-[#262626] border border-[#383838] rounded-xl shadow-2xl w-full max-w-3xl p-5 text-slate-200 max-h-[85vh] overflow-y-auto",onClick:function(e){e.stopPropagation();}},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between pb-3 border-b border-[#383838] mb-3"},/*#__PURE__*/React.createElement("h3",{className:"text-sm font-bold text-amber-400"},"Chords Panel"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"text-zinc-500 hover:text-red-400 text-xs px-1",title:"Close"},"✕")),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2 mb-3 flex-wrap"},/*#__PURE__*/React.createElement("div",{className:"flex gap-1"},[['preset','Presets'],['custom','Custom'],['ai','AI']].map(function(t){return/*#__PURE__*/React.createElement("button",{key:t[0],onClick:function(){setTab(t[0]);},className:"px-3 py-1 rounded text-[11px] font-bold "+(tab===t[0]?'bg-amber-700 text-white':'bg-zinc-800 text-zinc-400 hover:bg-zinc-700')},t[1]);})),tab!=='ai'&&/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("select",{value:key,onChange:function(e){setKey(e.target.value);},className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-2 py-1 text-[11px] outline-none",title:"Key (transpose)"},CHORD_KEYS.map(function(k){return/*#__PURE__*/React.createElement("option",{key:k,value:k},k);})),tab==='preset'&&/*#__PURE__*/React.createElement("input",{value:search,onChange:function(e){setSearch(e.target.value);},placeholder:"Search preset...",className:"bg-zinc-800 border border-zinc-700 text-zinc-200 rounded px-2 py-1 text-[11px] outline-none focus:border-amber-500 flex-1 min-w-[120px]"}))),tab==='preset'&&/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-1 sm:grid-cols-2 gap-3"},filteredPresets.map(function(p){const chords=resolveProgression(p.tokens,key,p.voicing);const display=chords.map(function(c){return c.name;}).join(' → ');const fav=favorites.indexOf(p.id)!==-1;return/*#__PURE__*/React.createElement("div",{key:p.id,className:"border border-[#383838] rounded-lg p-3 bg-[#2a2a2a]"},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between mb-1"},/*#__PURE__*/React.createElement("span",{className:"text-xs font-bold text-amber-400"},p.label),/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-zinc-500"},p.genre," · ",CHORD_VOICING_LABELS[p.voicing])),/*#__PURE__*/React.createElement("div",{className:"text-[11px] font-mono text-zinc-300 mb-2"},display||p.hint),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1 flex-wrap"},/*#__PURE__*/React.createElement("button",{onClick:function(){previewChord(chords[0]);},disabled:!chords.length,className:"px-2 py-1 rounded text-[10px] font-semibold bg-emerald-800 hover:bg-emerald-700 text-emerald-100 disabled:opacity-40"},"Preview Sound"),/*#__PURE__*/React.createElement("button",{onClick:function(){insertProg(p.label,chords,p.rhythm);},disabled:!chords.length,className:"px-2 py-1 rounded text-[10px] font-semibold bg-blue-800 hover:bg-blue-700 text-blue-100 disabled:opacity-40"},"Insert to Timeline"),/*#__PURE__*/React.createElement("button",{onClick:function(){toggleFavorite(p.id);},className:"px-2 py-1 rounded text-[10px] font-semibold "+(fav?'bg-yellow-700 text-yellow-100':'bg-zinc-700 text-zinc-300 hover:bg-zinc-600')},fav?'★ Favorite':'☆ Favorite')));}),!filteredPresets.length&&/*#__PURE__*/React.createElement("div",{className:"col-span-full text-[11px] text-zinc-500"},"Không tìm thấy preset.")),tab==='custom'&&/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-1 lg:grid-cols-2 gap-4"},/*#__PURE__*/React.createElement("div",{className:"border border-[#383838] rounded-lg p-3 bg-[#2a2a2a]"},/*#__PURE__*/React.createElement("div",{className:"text-xs font-bold text-amber-400 mb-2"},"Build Custom Progression"),/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-2"},/*#__PURE__*/React.createElement("input",{value:cName,onChange:function(e){setCName(e.target.value);},placeholder:"Tên (vd: Ballad)",className:"bg-zinc-800 border border-zinc-700 text-zinc-200 rounded px-2 py-1 text-xs outline-none focus:border-amber-500"}),/*#__PURE__*/React.createElement("input",{value:cGenre,onChange:function(e){setCGenre(e.target.value);},placeholder:"Genre (vd: Ballad)",className:"bg-zinc-800 border border-zinc-700 text-zinc-200 rounded px-2 py-1 text-xs outline-none focus:border-amber-500"}),/*#__PURE__*/React.createElement("input",{value:cTokens,onChange:function(e){setCTokens(e.target.value);},placeholder:"Tokens (vd: I-vi-IV-V)",className:"bg-zinc-800 border border-zinc-700 text-zinc-200 rounded px-2 py-1 text-xs outline-none focus:border-amber-500"}),/*#__PURE__*/React.createElement("div",{className:"flex gap-2 flex-wrap"},/*#__PURE__*/React.createElement("select",{value:customKey,onChange:function(e){setCustomKey(e.target.value);},className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-2 py-1 text-[11px] outline-none"},CHORD_KEYS.map(function(k){return/*#__PURE__*/React.createElement("option",{key:k,value:k},k);})),/*#__PURE__*/React.createElement("select",{value:cRhythm,onChange:function(e){setCRhythm(e.target.value);},className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-2 py-1 text-[11px] outline-none"},Object.keys(CHORD_RHYTHM_BEATS).map(function(r){return/*#__PURE__*/React.createElement("option",{key:r,value:r},CHORD_RHYTHM_LABELS[r]);})),/*#__PURE__*/React.createElement("select",{value:cVoicing,onChange:function(e){setCVoicing(e.target.value);},className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-2 py-1 text-[11px] outline-none"},Object.keys(CHORD_VOICING_LABELS).map(function(v){return/*#__PURE__*/React.createElement("option",{key:v,value:v},CHORD_VOICING_LABELS[v]);}))),/*#__PURE__*/React.createElement("button",{onClick:saveCustom,className:"px-3 py-1.5 rounded text-xs font-bold bg-amber-700 hover:bg-amber-600 text-white"},"Save Custom"))),/*#__PURE__*/React.createElement("div",{className:"border border-[#383838] rounded-lg p-3 bg-[#2a2a2a]"},/*#__PURE__*/React.createElement("div",{className:"text-xs font-bold text-amber-400 mb-2"},"My Customs (",customList.length,")"),customList.length===0?/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500"},"Chưa có custom nào — tạo bên trái rồi Save."):/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-2 max-h-48 overflow-y-auto"},customList.map(function(c){return/*#__PURE__*/React.createElement("div",{key:c.id,className:"border border-zinc-700 rounded p-2 flex items-center justify-between gap-2"},/*#__PURE__*/React.createElement("div",{className:"min-w-0"},/*#__PURE__*/React.createElement("div",{className:"text-[11px] font-bold text-zinc-200"},c.name," ",/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-zinc-500"},"(",c.genre,")")),/*#__PURE__*/React.createElement("div",{className:"text-[10px] font-mono text-zinc-400 truncate"},c.chords.map(function(x){return x.name;}).join(' → '))),/*#__PURE__*/React.createElement("div",{className:"flex gap-1 shrink-0"},/*#__PURE__*/React.createElement("button",{onClick:function(){previewChord(c.chords[0]);},className:"px-2 py-1 rounded text-[10px] font-semibold bg-emerald-800 hover:bg-emerald-700 text-emerald-100"},"Preview"),/*#__PURE__*/React.createElement("button",{onClick:function(){insertProg(c.name,c.chords,c.rhythm);},className:"px-2 py-1 rounded text-[10px] font-semibold bg-blue-800 hover:bg-blue-700 text-blue-100"},"Insert"),/*#__PURE__*/React.createElement("button",{onClick:function(){deleteCustom(c.id);},className:"px-2 py-1 rounded text-[10px] font-semibold bg-red-900 hover:bg-red-800 text-red-100"},"Del")));})))),tab==='ai'&&/*#__PURE__*/React.createElement("div",{className:"flex flex-col items-center justify-center py-12 text-center"},/*#__PURE__*/React.createElement("div",{className:"text-3xl mb-2"},"♪"),/*#__PURE__*/React.createElement("div",{className:"text-sm text-zinc-300 font-semibold mb-1"},"AI Chord Suggestions"),/*#__PURE__*/React.createElement("div",{className:"text-[11px] text-zinc-500 max-w-sm"},"AI chưa cấu hình. Bật AI Gateway trong Settings để nhận gợi ý chord theo genre / cảm xúc."))));};const App=()=>{// ── State Definitions ──
+const CHORD_PRESETS=[{id:'pop',label:'Pop',genre:'Pop',tokens:'I-V-vi-IV',key:'C',voicing:'root',rhythm:'whole',hint:'C → G → Am → F'},{id:'jazz',label:'Jazz Neo-Soul',genre:'Jazz Neo-Soul',tokens:'ii7-V7-Imaj7-VI7',key:'C',voicing:'drop2',rhythm:'whole',hint:'Dm7 → G7 → Cmaj7 → A7'},{id:'cinematic',label:'Cinematic',genre:'Cinematic',tokens:'i-VI-III-VII',key:'C',voicing:'root',rhythm:'whole',hint:'Cm → Ab → Eb → Bb'},{id:'edm',label:'EDM',genre:'EDM',tokens:'vi-IV-I-V',key:'C',voicing:'first',rhythm:'quarter',hint:'Am → F → C → G'},{id:'lofi',label:'Lo-Fi',genre:'Lo-Fi',tokens:'i7-iv7-v7-i7',key:'C',voicing:'root',rhythm:'whole',hint:'Cm7 → Fm7 → Gm7 → Cm7'},{id:'rnb',label:'R&B',genre:'R&B',tokens:'Imaj7-iii7-IVmaj7-V13',key:'C',voicing:'root',rhythm:'whole',hint:'Cmaj7 → Em7 → Fmaj7 → G13'}];const CHORD_RHYTHM_BEATS={whole:4,quarter:1,arpeggio:1,strum:1};const CHORD_RHYTHM_LABELS={whole:'Whole (4 beats)',quarter:'Quarter (1 beat)',arpeggio:'Arpeggio',strum:'Strum'};const CHORD_KEYS=['C','C#','D','Eb','E','F','F#','G','Ab','A','Bb','B'];const CHORD_VOICING_LABELS={root:'Root',first:'1st Inv',drop2:'Drop 2'};const ChordsPanel=({onClose,onInsert,onNoteOn,onNoteOff,bpm})=>{const[tab,setTab]=useState('preset');const[search,setSearch]=useState('');const[key,setKey]=useState('C');const[favorites,setFavorites]=useState(function(){try{return JSON.parse(localStorage.getItem('daw_chord_favorites')||'[]');}catch(e){return[];}});const[customList,setCustomList]=useState(function(){try{return JSON.parse(localStorage.getItem('daw_user_custom_chords')||'[]');}catch(e){return[];}});const[cName,setCName]=useState('');const[cGenre,setCGenre]=useState('');const[cTokens,setCTokens]=useState('I-vi-IV-V');const[cRhythm,setCRhythm]=useState('whole');const[cVoicing,setCVoicing]=useState('root');const[customKey,setCustomKey]=useState('C');const previewTimerRef=useRef(null);useEffect(function(){const onSaved=function(){try{setCustomList(JSON.parse(localStorage.getItem('daw_user_custom_chords')||'[]'));}catch(e){}};window.addEventListener('CUSTOM_CHORD_SAVED',onSaved);return function(){window.removeEventListener('CUSTOM_CHORD_SAVED',onSaved);};},[]);useEffect(function(){try{localStorage.setItem('daw_chord_favorites',JSON.stringify(favorites));}catch(e){}},[favorites]);useEffect(function(){return function(){if(previewTimerRef.current)clearTimeout(previewTimerRef.current);};},[]);const resolveProgression=function(tokens,progKey,progVoicing){try{return(window.ChordTheory||ChordTheory).progressionToChords(tokens,progKey||key,progVoicing||'root');}catch(e){return[];}};const previewChord=function(chord){if(!chord||!chord.pitches||!chord.pitches.length)return;const vel=0.8;chord.pitches.forEach(function(p){try{onNoteOn(p,vel);}catch(e){}});if(previewTimerRef.current)clearTimeout(previewTimerRef.current);previewTimerRef.current=setTimeout(function(){chord.pitches.forEach(function(p){try{onNoteOff(p);}catch(e){}});},900);};const toggleFavorite=function(id){setFavorites(function(prev){return prev.indexOf(id)!==-1?prev.filter(function(x){return x!==id;}):prev.concat([id]);});};const insertProg=function(label,chords,rhythm){const dur=CHORD_RHYTHM_BEATS[rhythm]!=null?CHORD_RHYTHM_BEATS[rhythm]:4;const payload=(chords||[]).filter(function(c){return c.pitches&&c.pitches.length;}).map(function(c){return{name:c.name||c.token,pitches:c.pitches,duration_beats:dur};});if(!payload.length){if(window.showToast)window.showToast('Không có chord để chèn','warning');return;}onInsert({label:label,chords:payload});};const saveCustom=function(){const tokens=(cTokens||'').trim();if(!tokens){if(window.showToast)window.showToast('Nhập progression tokens','warning');return;}let chords=[];try{chords=(window.ChordTheory||ChordTheory).progressionToChords(tokens,customKey,cVoicing);}catch(e){}if(!chords.length||chords.some(function(c){return!c.pitches||!c.pitches.length;})){if(window.showToast)window.showToast('Progression không parse được','warning');return;}const entry={id:'custom_'+Date.now(),name:(cName||'').trim()||'My Chord',genre:(cGenre||'').trim()||'Custom',tokens:tokens,key:customKey,rhythm:cRhythm,voicing:cVoicing,chords:chords};try{const list=JSON.parse(localStorage.getItem('daw_user_custom_chords')||'[]');list.push(entry);localStorage.setItem('daw_user_custom_chords',JSON.stringify(list));setCustomList(list);window.dispatchEvent(new CustomEvent('CUSTOM_CHORD_SAVED'));if(window.showToast)window.showToast('Đã lưu chord custom: '+entry.name,'success');}catch(e){if(window.showToast)window.showToast('Lưu thất bại','error');}};const deleteCustom=function(id){try{const list=JSON.parse(localStorage.getItem('daw_user_custom_chords')||'[]').filter(function(x){return x.id!==id;});localStorage.setItem('daw_user_custom_chords',JSON.stringify(list));setCustomList(list);window.dispatchEvent(new CustomEvent('CUSTOM_CHORD_SAVED'));}catch(e){}};const q=(search||'').trim().toLowerCase();const filteredPresets=CHORD_PRESETS.filter(function(p){if(!q)return true;const chords=resolveProgression(p.tokens,key,p.voicing);const hay=(p.label+' '+p.genre+' '+p.hint+' '+chords.map(function(c){return c.name;}).join(' ')).toLowerCase();return hay.indexOf(q)!==-1;});return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-[9995] flex items-center justify-center bg-black/60 backdrop-blur-sm",onClick:onClose},/*#__PURE__*/React.createElement("div",{className:"bg-[#262626] border border-[#383838] rounded-xl shadow-2xl w-full max-w-3xl p-5 text-slate-200 max-h-[85vh] overflow-y-auto",onClick:function(e){e.stopPropagation();}},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between pb-3 border-b border-[#383838] mb-3"},/*#__PURE__*/React.createElement("h3",{className:"text-sm font-bold text-amber-400"},"Chords Panel"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"text-zinc-500 hover:text-red-400 text-xs px-1",title:"Close"},"\u2715")),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2 mb-3 flex-wrap"},/*#__PURE__*/React.createElement("div",{className:"flex gap-1"},[['preset','Presets'],['custom','Custom'],['ai','AI']].map(function(t){return/*#__PURE__*/React.createElement("button",{key:t[0],onClick:function(){setTab(t[0]);},className:"px-3 py-1 rounded text-[11px] font-bold "+(tab===t[0]?'bg-amber-700 text-white':'bg-zinc-800 text-zinc-400 hover:bg-zinc-700')},t[1]);})),tab!=='ai'&&/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("select",{value:key,onChange:function(e){setKey(e.target.value);},className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-2 py-1 text-[11px] outline-none",title:"Key (transpose)"},CHORD_KEYS.map(function(k){return/*#__PURE__*/React.createElement("option",{key:k,value:k},k);})),tab==='preset'&&/*#__PURE__*/React.createElement("input",{value:search,onChange:function(e){setSearch(e.target.value);},placeholder:"Search preset...",className:"bg-zinc-800 border border-zinc-700 text-zinc-200 rounded px-2 py-1 text-[11px] outline-none focus:border-amber-500 flex-1 min-w-[120px]"}))),tab==='preset'&&/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-1 sm:grid-cols-2 gap-3"},filteredPresets.map(function(p){const chords=resolveProgression(p.tokens,key,p.voicing);const display=chords.map(function(c){return c.name;}).join(' → ');const fav=favorites.indexOf(p.id)!==-1;return/*#__PURE__*/React.createElement("div",{key:p.id,className:"border border-[#383838] rounded-lg p-3 bg-[#2a2a2a]"},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between mb-1"},/*#__PURE__*/React.createElement("span",{className:"text-xs font-bold text-amber-400"},p.label),/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-zinc-500"},p.genre," \xB7 ",CHORD_VOICING_LABELS[p.voicing])),/*#__PURE__*/React.createElement("div",{className:"text-[11px] font-mono text-zinc-300 mb-2"},display||p.hint),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1 flex-wrap"},/*#__PURE__*/React.createElement("button",{onClick:function(){previewChord(chords[0]);},disabled:!chords.length,className:"px-2 py-1 rounded text-[10px] font-semibold bg-emerald-800 hover:bg-emerald-700 text-emerald-100 disabled:opacity-40"},"Preview Sound"),/*#__PURE__*/React.createElement("button",{onClick:function(){insertProg(p.label,chords,p.rhythm);},disabled:!chords.length,className:"px-2 py-1 rounded text-[10px] font-semibold bg-blue-800 hover:bg-blue-700 text-blue-100 disabled:opacity-40"},"Insert to Timeline"),/*#__PURE__*/React.createElement("button",{onClick:function(){toggleFavorite(p.id);},className:"px-2 py-1 rounded text-[10px] font-semibold "+(fav?'bg-yellow-700 text-yellow-100':'bg-zinc-700 text-zinc-300 hover:bg-zinc-600')},fav?'★ Favorite':'☆ Favorite')));}),!filteredPresets.length&&/*#__PURE__*/React.createElement("div",{className:"col-span-full text-[11px] text-zinc-500"},"Kh\xF4ng t\xECm th\u1EA5y preset.")),tab==='custom'&&/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-1 lg:grid-cols-2 gap-4"},/*#__PURE__*/React.createElement("div",{className:"border border-[#383838] rounded-lg p-3 bg-[#2a2a2a]"},/*#__PURE__*/React.createElement("div",{className:"text-xs font-bold text-amber-400 mb-2"},"Build Custom Progression"),/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-2"},/*#__PURE__*/React.createElement("input",{value:cName,onChange:function(e){setCName(e.target.value);},placeholder:"T\xEAn (vd: Ballad)",className:"bg-zinc-800 border border-zinc-700 text-zinc-200 rounded px-2 py-1 text-xs outline-none focus:border-amber-500"}),/*#__PURE__*/React.createElement("input",{value:cGenre,onChange:function(e){setCGenre(e.target.value);},placeholder:"Genre (vd: Ballad)",className:"bg-zinc-800 border border-zinc-700 text-zinc-200 rounded px-2 py-1 text-xs outline-none focus:border-amber-500"}),/*#__PURE__*/React.createElement("input",{value:cTokens,onChange:function(e){setCTokens(e.target.value);},placeholder:"Tokens (vd: I-vi-IV-V)",className:"bg-zinc-800 border border-zinc-700 text-zinc-200 rounded px-2 py-1 text-xs outline-none focus:border-amber-500"}),/*#__PURE__*/React.createElement("div",{className:"flex gap-2 flex-wrap"},/*#__PURE__*/React.createElement("select",{value:customKey,onChange:function(e){setCustomKey(e.target.value);},className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-2 py-1 text-[11px] outline-none"},CHORD_KEYS.map(function(k){return/*#__PURE__*/React.createElement("option",{key:k,value:k},k);})),/*#__PURE__*/React.createElement("select",{value:cRhythm,onChange:function(e){setCRhythm(e.target.value);},className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-2 py-1 text-[11px] outline-none"},Object.keys(CHORD_RHYTHM_BEATS).map(function(r){return/*#__PURE__*/React.createElement("option",{key:r,value:r},CHORD_RHYTHM_LABELS[r]);})),/*#__PURE__*/React.createElement("select",{value:cVoicing,onChange:function(e){setCVoicing(e.target.value);},className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-2 py-1 text-[11px] outline-none"},Object.keys(CHORD_VOICING_LABELS).map(function(v){return/*#__PURE__*/React.createElement("option",{key:v,value:v},CHORD_VOICING_LABELS[v]);}))),/*#__PURE__*/React.createElement("button",{onClick:saveCustom,className:"px-3 py-1.5 rounded text-xs font-bold bg-amber-700 hover:bg-amber-600 text-white"},"Save Custom"))),/*#__PURE__*/React.createElement("div",{className:"border border-[#383838] rounded-lg p-3 bg-[#2a2a2a]"},/*#__PURE__*/React.createElement("div",{className:"text-xs font-bold text-amber-400 mb-2"},"My Customs (",customList.length,")"),customList.length===0?/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500"},"Ch\u01B0a c\xF3 custom n\xE0o \u2014 t\u1EA1o b\xEAn tr\xE1i r\u1ED3i Save."):/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-2 max-h-48 overflow-y-auto"},customList.map(function(c){return/*#__PURE__*/React.createElement("div",{key:c.id,className:"border border-zinc-700 rounded p-2 flex items-center justify-between gap-2"},/*#__PURE__*/React.createElement("div",{className:"min-w-0"},/*#__PURE__*/React.createElement("div",{className:"text-[11px] font-bold text-zinc-200"},c.name," ",/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-zinc-500"},"(",c.genre,")")),/*#__PURE__*/React.createElement("div",{className:"text-[10px] font-mono text-zinc-400 truncate"},c.chords.map(function(x){return x.name;}).join(' → '))),/*#__PURE__*/React.createElement("div",{className:"flex gap-1 shrink-0"},/*#__PURE__*/React.createElement("button",{onClick:function(){previewChord(c.chords[0]);},className:"px-2 py-1 rounded text-[10px] font-semibold bg-emerald-800 hover:bg-emerald-700 text-emerald-100"},"Preview"),/*#__PURE__*/React.createElement("button",{onClick:function(){insertProg(c.name,c.chords,c.rhythm);},className:"px-2 py-1 rounded text-[10px] font-semibold bg-blue-800 hover:bg-blue-700 text-blue-100"},"Insert"),/*#__PURE__*/React.createElement("button",{onClick:function(){deleteCustom(c.id);},className:"px-2 py-1 rounded text-[10px] font-semibold bg-red-900 hover:bg-red-800 text-red-100"},"Del")));})))),tab==='ai'&&/*#__PURE__*/React.createElement("div",{className:"flex flex-col items-center justify-center py-12 text-center"},/*#__PURE__*/React.createElement("div",{className:"text-3xl mb-2"},"\u266A"),/*#__PURE__*/React.createElement("div",{className:"text-sm text-zinc-300 font-semibold mb-1"},"AI Chord Suggestions"),/*#__PURE__*/React.createElement("div",{className:"text-[11px] text-zinc-500 max-w-sm"},"AI ch\u01B0a c\u1EA5u h\xECnh. B\u1EADt AI Gateway trong Settings \u0111\u1EC3 nh\u1EADn g\u1EE3i \xFD chord theo genre / c\u1EA3m x\xFAc."))));};const App=()=>{// ── State Definitions ──
 const[tracks,setTracks]=useState([{id:'1',name:'Track 01',buffer:null,startTime:0,volumeDb:0,pan:0,muted:false,solo:false,color:'#0f766e',markers:[],serverFileId:null,clips:[],sections:[],midiItems:[],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}},{id:'2',name:'Track 02',buffer:null,startTime:0,volumeDb:0,pan:0,muted:false,solo:false,color:'#1d4ed8',markers:[],serverFileId:null,clips:[],sections:[],midiItems:[],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}}]);const[appWarningModal,setAppWarningModal]=useState(null);const[bpm,setBpm]=useState(localStorage.getItem('studio_bpm')||'120');const prevBpmRef=useRef(bpm);const[draggedClip,setDraggedClip]=useState(null);const[hoveredTrackId,setHoveredTrackId]=useState(null);// Recalculate item/section/selection durations when BPM changes
 useEffect(()=>{const oldSpb=prevBpmRef.current?60.0/parseFloat(prevBpmRef.current)*4:null;const bpmVal=parseFloat(bpm)||120;const secondsPerBar=60.0/bpmVal*4;// Recalculate range loop selection to maintain bar count (tempo mode only)
 if(oldSpb&&selectionFollowsTempo&&selectionStart!==null&&selectionEnd!==null&&selectionEnd>selectionStart){const startBar=selectionStart/oldSpb;const endBar=selectionEnd/oldSpb;if(endBar-startBar>0.01){setSelectionStart(startBar*secondsPerBar);setSelectionEnd(endBar*secondsPerBar);}}prevBpmRef.current=bpm;// Force canvas redraw
@@ -1038,10 +1008,9 @@ if(ok&&window.__bridgeLastProgram){const _pfx=trackId+':';Object.keys(window.__b
 // transport STOP; setReloading trước job (G0.1b) + 1 UiThread (G1.2)
 // chặn race 2 thread 1 DLL. Mute ngắn ~0.1-0.3s lần đầu, note đang
 // ngân không mất. Reopen sau khi đóng vẫn mute 1-3s (reload) — level 2.
-if(ok&&(btype==='VST3'||btype==='VST2')&&window.NativeBridgeService.openNativeGUI){try{await openVstGuiRetry(instrumentId,bch,20);}catch(e){}}}})();};const setTrackInstrumentWithProgram=(trackId,instrumentId,programNumber,displayName,bankNumber)=>{const isSfInstrument=instrumentId&&typeof instrumentId==='string'&&instrumentId.startsWith('sf_');const sfBank=bankNumber!==undefined?bankNumber:isSfInstrument?0:undefined;const sfProg=programNumber!==undefined?programNumber:undefined;var mt=activeTracksRef.current||tracks;var curTrk=null;for(var ci=0;ci<mt.length;ci++){if(mt[ci].id===trackId){curTrk=mt[ci];break;}}// ── Unload Carla bridge khi chuyển từ VSTi sang instrument KHÔNG phải VST ──
-// (soundfont/GM/default). Nếu không, Carla vẫn chạy với VSTi cũ → MIDI vẫn
-// play qua Carla bridge (âm sai instrument + âm kẹt không dừng được).
-try{const _hasInst=!!instrumentId;const _wasVst=curTrk&&curTrk.synth_engine&&String(curTrk.synth_engine.type||'').indexOf('vst')!==-1;const _nowVst=_hasInst&&!isSfInstrument;if(_wasVst&&!_nowVst&&window.SonicCarlaMidi&&window.SonicCarlaMidi.stopBridge){window.SonicCarlaMidi.stopBridge();try{if(window.SonicMidiRouter)window.SonicMidiRouter.panic();else if(window.SonicSF&&window.SonicSF.stopAll)window.SonicSF.stopAll();}catch(e){}stopAllNativeSfNotes();stopAllNativeVstNotes();console.log('[Instrument] Carla bridge unloaded — track',trackId,'switched from VSTi to non-VST');}}catch(e){console.warn('[Instrument] carla-stop on instrument switch error:',e);}var mch=curTrk?assignTrackMidiChannel(curTrk,mt):sfBank===128?9:0;updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;const hasInstrument=!!instrumentId;const instrType=isSfInstrument?'soundfont':hasInstrument?'vst3':'default';const synthEngine=hasInstrument?{type:instrType,plugin_id:instrumentId,soundfont_bank:sfBank!==undefined?sfBank:0,soundfont_program:sfProg!==undefined?sfProg:0,soundfont_id:isSfInstrument?instrumentId.replace('sf_',''):''}:undefined;return{...t,midiChannel:mch,instrumentId,instrumentProgram:sfProg,instrumentName:displayName,soundfont_bank:sfBank,soundfont_program:sfProg,synth_engine:synthEngine,type:hasInstrument?'MIDI':t.type==='MIDI'?'audio':t.type};}));setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setSynthCategory(null);// Trigger FluidSynth load + program change when soundfont instrument selected
+if(ok&&(btype==='VST3'||btype==='VST2')&&window.NativeBridgeService.openNativeGUI){try{await openVstGuiRetry(instrumentId,bch,20);}catch(e){}}}})();};const setTrackInstrumentWithProgram=(trackId,instrumentId,programNumber,displayName,bankNumber)=>{const isSfInstrument=instrumentId&&typeof instrumentId==='string'&&instrumentId.startsWith('sf_');const sfBank=bankNumber!==undefined?bankNumber:isSfInstrument?0:undefined;const sfProg=programNumber!==undefined?programNumber:undefined;var mt=activeTracksRef.current||tracks;var curTrk=null;for(var ci=0;ci<mt.length;ci++){if(mt[ci].id===trackId){curTrk=mt[ci];break;}}// ── Panic khi chuyển từ VSTi sang instrument KHÔNG phải VST ──
+// (soundfont/GM/default) — dừng mọi note đang vang từ VSTi cũ.
+try{const _hasInst=!!instrumentId;const _wasVst=curTrk&&curTrk.synth_engine&&String(curTrk.synth_engine.type||'').indexOf('vst')!==-1;const _nowVst=_hasInst&&!isSfInstrument;if(_wasVst&&!_nowVst){try{if(window.SonicMidiRouter)window.SonicMidiRouter.panic();else if(window.SonicSF&&window.SonicSF.stopAll)window.SonicSF.stopAll();}catch(e){}stopAllNativeSfNotes();stopAllNativeVstNotes();}}catch(e){}var mch=curTrk?assignTrackMidiChannel(curTrk,mt):sfBank===128?9:0;updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;const hasInstrument=!!instrumentId;const instrType=isSfInstrument?'soundfont':hasInstrument?'vst3':'default';const synthEngine=hasInstrument?{type:instrType,plugin_id:instrumentId,soundfont_bank:sfBank!==undefined?sfBank:0,soundfont_program:sfProg!==undefined?sfProg:0,soundfont_id:isSfInstrument?instrumentId.replace('sf_',''):''}:undefined;return{...t,midiChannel:mch,instrumentId,instrumentProgram:sfProg,instrumentName:displayName,soundfont_bank:sfBank,soundfont_program:sfProg,synth_engine:synthEngine,type:hasInstrument?'MIDI':t.type==='MIDI'?'audio':t.type};}));setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setSynthCategory(null);// Trigger FluidSynth load + program change when soundfont instrument selected
 if(window.SonicSF&&window.SonicSF.selectInstrument&&instrumentId&&isSfInstrument){const sfId=instrumentId.replace('sf_','');window.SonicSF.selectInstrument(mch,sfBank||0,sfProg||0,sfId);}// D7: bridge active → load instrument vào bridge tại channel router sẽ dùng
 loadTrackInstrumentToBridge(trackId,instrumentId,sfBank);setSubTabs(prev=>prev.map(s=>{if(s.trackId!==trackId)return s;return{...s,instrumentProgram:programNumber!==undefined?programNumber:undefined,instrumentName:displayName,instrumentId};}));const playingSub=subTabs.find(s=>s.trackId===trackId&&s.type==='PIANO_ROLL'&&s.isPlaying);if(playingSub){const pid=playingSub.id;const ctx=getAudioContext();const tNode=activeTrackNodesRef.current[trackId];if(tNode&&tNode.gainNode){tNode.gainNode.gain.setValueAtTime(tNode.gainNode.gain.value||1,ctx.currentTime);tNode.gainNode.gain.linearRampToValueAtTime(0.001,ctx.currentTime+0.04);}setTimeout(()=>{stopAllPlayback();if(tNode&&tNode.gainNode){const trackData=activeTracksRef.current?activeTracksRef.current.find(t=>t.id===trackId):null;const volDb=trackData?trackData.volumeDb??0:0;const volLinear=volDb<=-50?0:Math.pow(10,volDb/20);tNode.gainNode.gain.setValueAtTime(0.001,ctx.currentTime);tNode.gainNode.gain.linearRampToValueAtTime(volLinear||0.8,ctx.currentTime+0.015);}const context=getAudioContext();const offset=playingSub.currentTime||0;startOffsetTimeRef.current=offset;startAudioTimeRef.current=context.currentTime;startBufferOffsetRef.current=offset*(playingSub.speed||1.0);schedulePianoRollMidi(playingSub,offset);startSubTabPlayback(playingSub,offset);setSubTabs(prev=>prev.map(s=>s.id===pid?{...s,isPlaying:true}:s));if(subTabsRef.current){subTabsRef.current=subTabsRef.current.map(s=>s.id===pid?{...s,isPlaying:true}:s);}animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);},60);}setTimeout(()=>lucide.createIcons(),50);};const setTrackInstrument=(trackId,instrumentId,displayName)=>{setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);if(instrumentId&&instrumentId.startsWith('sf_')){// Set instrument on track immediately so Synth button shows the name
 var mt2=activeTracksRef.current||tracks;var qTrk=null;for(var qi=0;qi<mt2.length;qi++){if(mt2[qi].id===trackId){qTrk=mt2[qi];break;}}var qch=qTrk?assignTrackMidiChannel(qTrk,mt2):0;updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;const sfClean=instrumentId.replace('sf_','');const synthEngine={type:'soundfont',plugin_id:instrumentId,soundfont_bank:0,soundfont_program:0,soundfont_id:sfClean};return{...t,midiChannel:qch,instrumentId,instrumentProgram:undefined,instrumentName:displayName,synth_engine:synthEngine};}));setSelectedSoundFontId(instrumentId);setSynthCategory('soundfont');setInstrumentSelectorTrackId(trackId);setSfPresets(null);setSfPresetSearchQuery('');const sfIdParam=instrumentId.replace('sf_','');// Use cached presets from instrumentSelectorData
@@ -1075,27 +1044,19 @@ const scaledVel=Math.min(127,Math.max(1,Math.round(rawVel)));if(cmd===0x9&&rawVe
 try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(er){}// Route MIDI input to ALL armed tracks on their dedicated channels
 // Do NOT use raw MIDI hardware channel (msg.data[0] & 0x0F)
 if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){// D1: bridge active -> 1 cổng router (per-track channel alloc) →
-// Rust SHM → C++ bridge; giữ SonicSF/Carla fallback ở nhánh else.
+// Rust SHM → C++ bridge; giữ SonicSF fallback ở nhánh else.
 var bTracks=activeTracksRef.current||[];bTracks.forEach(function(bt){if(!bt.isArmed)return;if(window.triggerMidiVuActivity){window.triggerMidiVuActivity(bt.id,scaledVel);}try{heldMidiNotesRef.current[bt.id]=(heldMidiNotesRef.current[bt.id]||0)+1;}catch(err){}try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_ON',channel:bt.id,pitch:pitch,velocity:scaledVel/127,percussion:!!(bt.synth_engine&&bt.synth_engine.soundfont_bank===128),live:true});}catch(e){}});}else if(window.SonicSF){var allTracks=activeTracksRef.current||[];var arSubs=subTabsRef&&subTabsRef.current?subTabsRef.current.filter(function(s){return s.type==='PIANO_ROLL'&&s.isArmed;}):[];var armedTracks=allTracks.filter(function(t){return t.isArmed;});// Piano Roll arming has priority: route to each armed sub-tab's parent track
 if(arSubs.length>0){arSubs.forEach(function(as){var asTrk=allTracks.find(function(t){return t.id===as.trackId;});var asCh=asTrk?assignTrackMidiChannel(asTrk,allTracks):0;var asProg=as.instrumentProgram;var asSe=as.synth_engine;if(window.triggerMidiVuActivity){window.triggerMidiVuActivity(as.trackId,scaledVel);}// Giữ VU theo trường độ: tăng counter note đang giữ
 // (tick giữ peak cho tới khi note-off)
-try{heldMidiNotesRef.current[as.trackId]=(heldMidiNotesRef.current[as.trackId]||0)+1;}catch(err){}if(isStandaloneSf()&&isSfTrackEngine(asSe)&&!shouldRouteCarla(asSe)){playNativeSfNote(asTrk,pitch,scaledVel/127,60000,undefined,'midi_'+as.trackId+'_'+pitch);}else if(isStandaloneSf()&&isVstTrackEngine(asSe)&&!shouldRouteCarla(asSe)){playNativeVstNote(asTrk,pitch,scaledVel/127,60000,undefined,'midi_'+as.trackId+'_'+pitch);}else{window.SonicSF.playNote(pitch,scaledVel,60000,undefined,asProg,null,asCh,asSe);}// MIDI Keyboard → Carla bridge (piano roll sub-tab ARM):
-// track VSTi của sub-tab phát VSTi realtime giống keybed.
-if(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoute(asSe,true)){try{window.SonicCarlaMidi.noteOn(asCh,pitch,scaledVel);}catch(e){}}});}// Route to ALL armed tracks (not just the first one)
+try{heldMidiNotesRef.current[as.trackId]=(heldMidiNotesRef.current[as.trackId]||0)+1;}catch(err){}if(isStandaloneSf()&&isSfTrackEngine(asSe)){playNativeSfNote(asTrk,pitch,scaledVel/127,60000,undefined,'midi_'+as.trackId+'_'+pitch);}else if(isStandaloneSf()&&isVstTrackEngine(asSe)){playNativeVstNote(asTrk,pitch,scaledVel/127,60000,undefined,'midi_'+as.trackId+'_'+pitch);}else{window.SonicSF.playNote(pitch,scaledVel,60000,undefined,asProg,null,asCh,asSe);}});}// Route to ALL armed tracks (not just the first one)
 armedTracks.forEach(function(at){var atCh=assignTrackMidiChannel(at,allTracks);var atProg=at.instrumentProgram;var atSe=at.synth_engine;var atDest=activeTrackNodesRef.current[at.id]?.gainNode||null;if(window.triggerMidiVuActivity){window.triggerMidiVuActivity(at.id,scaledVel);}// Giữ VU theo trường độ: tăng counter note đang giữ
-try{heldMidiNotesRef.current[at.id]=(heldMidiNotesRef.current[at.id]||0)+1;}catch(err){}if(isStandaloneSf()&&isSfTrackEngine(atSe)&&!shouldRouteCarla(atSe)){playNativeSfNote(at,pitch,scaledVel/127,60000,undefined,'midi_'+at.id+'_'+pitch);}else if(isStandaloneSf()&&isVstTrackEngine(atSe)&&!shouldRouteCarla(atSe)){playNativeVstNote(at,pitch,scaledVel/127,60000,undefined,'midi_'+at.id+'_'+pitch);}else{window.SonicSF.playNote(pitch,scaledVel,60000,undefined,atProg,atDest,atCh,atSe);}// MIDI Keyboard → Carla bridge (track VSTi + ARM + Carla
-// local): phát VSTi realtime — giống hệt keybed ảo. Trước
-// đây chỉ keybed gọi SonicCarlaMidi; keyboard hardware bị
-// bỏ sót → track VSTi không kêu khi bấm đàn thật.
-if(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoute(atSe,at.isArmed)){try{window.SonicCarlaMidi.noteOn(atCh,pitch,scaledVel);}catch(e){}}});}}else if(cmd===0x8||cmd===0x9&&rawVel===0){activeMidiPitchesRef.current.delete(pitch);setActiveMidiPitches(new Set(activeMidiPitchesRef.current));const current=lastMidiNoteRef.current;if(current&&current.pitch===pitch){const lenSec=(performance.now()-current.startTime)/1000;lastMidiNoteRef.current={...current,length:lenSec};setLastMidiNote(prev=>prev&&prev.pitch===pitch?{...prev,length:lenSec,time:Date.now()}:prev);}// Stop the note on ALL tracks (not just armed) to prevent stuck notes
+try{heldMidiNotesRef.current[at.id]=(heldMidiNotesRef.current[at.id]||0)+1;}catch(err){}if(isStandaloneSf()&&isSfTrackEngine(atSe)){playNativeSfNote(at,pitch,scaledVel/127,60000,undefined,'midi_'+at.id+'_'+pitch);}else if(isStandaloneSf()&&isVstTrackEngine(atSe)){playNativeVstNote(at,pitch,scaledVel/127,60000,undefined,'midi_'+at.id+'_'+pitch);}else{window.SonicSF.playNote(pitch,scaledVel,60000,undefined,atProg,atDest,atCh,atSe);}});}}else if(cmd===0x8||cmd===0x9&&rawVel===0){activeMidiPitchesRef.current.delete(pitch);setActiveMidiPitches(new Set(activeMidiPitchesRef.current));const current=lastMidiNoteRef.current;if(current&&current.pitch===pitch){const lenSec=(performance.now()-current.startTime)/1000;lastMidiNoteRef.current={...current,length:lenSec};setLastMidiNote(prev=>prev&&prev.pitch===pitch?{...prev,length:lenSec,time:Date.now()}:prev);}// Stop the note on ALL tracks (not just armed) to prevent stuck notes
 // when ARM is toggled off while a key is held
 if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){// D1: bridge note-off qua router (channel trùng NOTE_ON — track.id).
 var bStopTracks=activeTracksRef.current||[];bStopTracks.forEach(function(bst){try{if(heldMidiNotesRef.current[bst.id]!==undefined){heldMidiNotesRef.current[bst.id]=Math.max(0,heldMidiNotesRef.current[bst.id]-1);if(heldMidiNotesRef.current[bst.id]===0){delete heldMidiNotesRef.current[bst.id];}}}catch(err){}try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_OFF',channel:bst.id,pitch:pitch,velocity:0,percussion:!!(bst.synth_engine&&bst.synth_engine.soundfont_bank===128),live:true});}catch(e){}});}else if(window.SonicSF&&window.SonicSF.stopNote){var stopTracks=activeTracksRef.current||[];stopTracks.forEach(function(st){// Only stop channels that actually carry this track's notes —
 // an index-based fallback could hit another track's dedicated
 // channel and kill its sound.
-if(!st.synth_engine&&st.midiChannel===undefined)return;var stCh=assignTrackMidiChannel(st,stopTracks);if(isStandaloneSf())stopNativeSfNote('midi_'+st.id+'_'+pitch);stopNativeVstNote('midi_'+st.id+'_'+pitch);window.SonicSF.stopNote(stCh,pitch);// MIDI Keyboard → Carla bridge: note-off khi thả phím — tránh
-// kẹt âm VSTi (giống keybed ảo).
-if(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoute(st.synth_engine,st.isArmed)){try{window.SonicCarlaMidi.noteOff(stCh,pitch);}catch(e){}}// Giảm counter note đang giữ — hết note → VU được phép decay/tắt
+if(!st.synth_engine&&st.midiChannel===undefined)return;var stCh=assignTrackMidiChannel(st,stopTracks);if(isStandaloneSf())stopNativeSfNote('midi_'+st.id+'_'+pitch);stopNativeVstNote('midi_'+st.id+'_'+pitch);window.SonicSF.stopNote(stCh,pitch);// Giảm counter note đang giữ — hết note → VU được phép decay/tắt
 // (tick sẽ thấy counter = 0 và không còn giữ peak nữa)
 try{if(heldMidiNotesRef.current[st.id]!==undefined){heldMidiNotesRef.current[st.id]=Math.max(0,heldMidiNotesRef.current[st.id]-1);if(heldMidiNotesRef.current[st.id]===0){delete heldMidiNotesRef.current[st.id];}}}catch(err){}});}}// ── Sustain (CC64), Modulation (CC1), Pitch Bend ──
 const midiCh=msg.data[0]&0x0F;if(cmd===0xB){// Controller Change: forward to ALL armed tracks' dedicated channels
@@ -1150,9 +1111,9 @@ const[contextMenu,setContextMenu]=useState(null);// { x, y, trackId }
 // window.__setPrHint (mouse in/out + Shift/Ctrl state)
 const[prHint,setPrHint]=useState(null);React.useEffect(()=>{window.__setPrHint=h=>setPrHint(h||null);return()=>{delete window.__setPrHint;};},[]);const clipboardRef=useRef(null);// { buffer, name, volume, color } for copy/paste
 // ── Undo/Redo Engine (LOOP_EDITOR.md §4 + Global Extension) ──
-const[undoStack,setUndoStack]=useState([]);const[redoStack,setRedoStack]=useState([]);const MAX_UNDO=30;const pushAction=(actionType,trackId,beforeState,afterState)=>{const node={action_type:actionType,track_id:trackId,timestamp:Date.now(),before_state:beforeState,after_state:afterState};setUndoStack(prev=>{const next=[...prev,node];if(next.length>MAX_UNDO)next.shift();return next;});setRedoStack([]);};const handleUndo=()=>{if(window.UndoRedoEngine&&window.UndoRedoEngine.canUndo()){const entry=window.UndoRedoEngine.undo();if(entry){if(entry.undo&&typeof entry.undo==='function')entry.undo(entry);showToast(`Undo: ${entry.label||entry.type}`,'info');return;}}if(undoStack.length===0)return;const last=undoStack[undoStack.length-1];setUndoStack(prev=>prev.slice(0,-1));setRedoStack(prev=>[...prev,last]);applyTrackState(last.track_id,last.before_state);showToast(`Undo: ${last.action_type}`,'info');};const handleRedo=()=>{if(window.UndoRedoEngine&&window.UndoRedoEngine.canRedo()){const entry=window.UndoRedoEngine.redo();if(entry){if(entry.redo&&typeof entry.redo==='function')entry.redo(entry);showToast(`Redo: ${entry.label||entry.type}`,'info');return;}}if(redoStack.length===0)return;const last=redoStack[redoStack.length-1];setRedoStack(prev=>prev.slice(0,-1));setUndoStack(prev=>[...prev,last]);applyTrackState(last.track_id,last.after_state);showToast(`Redo: ${last.action_type}`,'info');};const applyTrackState=(trackId,state)=>{if(trackId==='ALL_TRACKS'){state.forEach(entry=>{applyTrackState(entry.trackId,entry.state);});return;}updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;var updated={...t,...state};if(state.sections!==undefined){updated.sections=state.sections;}if(state.midiItems!==undefined){updated.midiItems=state.midiItems;}if(state.clips!==undefined){updated.clips=state.clips;}return updated;}));};const getSelectedMidiItemInfo=()=>{if(!selectedItemIds||selectedItemIds.size!==1)return null;const selId=selectedItemIds.values().next().value;const tlist=activeTracks||tracks||[];for(const t of tlist){const found=(t.midiItems||[]).find(m=>m.id===selId);if(found)return{itemName:found.name,trackName:t.name,trackId:t.id,itemId:selId,notes:found.notes||[],startTime:found.startTime||0,duration:found.duration||4};}return null;};const captureTrackSnapshot=trackId=>{const track=activeTracks.find(t=>t.id===trackId);if(!track)return null;return{volumeDb:track.volumeDb,pan:track.pan,muted:track.muted,name:track.name,markers:JSON.parse(JSON.stringify(track.markers||[])),buffer:track.buffer,startTime:track.startTime||0,clips:track.clips?track.clips.map(c=>({id:c.id,buffer:c.buffer,startTime:c.startTime,name:c.name})):null,sections:track.sections?track.sections.map(function(s){return{id:s.id,start:s.start,duration:s.duration,name:s.name,color:s.color,notes:s.notes?s.notes.map(function(n){return{id:n.id,pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:n.velocity};}):null,tracks:s.tracks?s.tracks.map(function(st){return{id:st.id,name:st.name,color:st.color,clips:st.clips?st.clips.map(function(c){return{id:c.id,startTime:c.startTime,name:c.name,speed:c.speed,buffer:c.buffer};}):null,midiItems:st.midiItems?st.midiItems.map(function(m){return{id:m.id,startTime:m.startTime,duration:m.duration,name:m.name,notes:m.notes?m.notes.map(function(n){return{id:n.id,pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:n.velocity};}):null};}):null};}):null};}):null,midiItems:track.midiItems?track.midiItems.map(function(m){return{id:m.id,startTime:m.startTime,duration:m.duration,name:m.name,notes:m.notes?m.notes.map(function(n){return{id:n.id,pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:n.velocity};}):null};}):null};};const captureAllTracksSnapshot=()=>{const curTracks=activeTracksRef.current||activeTracks||[];return curTracks.map(t=>({trackId:t.id,state:captureTrackSnapshot(t.id)}));};const setBpmWithUndo=newBpm=>{const oldBpm=bpmRef.current;if(String(oldBpm)===String(newBpm))return;const entry={type:'SET_BPM',scope:'global',label:`BPM ${oldBpm} → ${newBpm}`,before:oldBpm,after:newBpm,undo:e=>{setBpm(e.before);showToast(`Undo: BPM → ${e.before}`,'info');},redo:e=>{setBpm(e.after);showToast(`Redo: BPM → ${e.after}`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);setBpm(String(newBpm));};const setPlayheadWithUndo=newTime=>{const oldTime=currentTime;if(Math.abs(oldTime-newTime)<0.001)return;const entry={type:'SET_PLAYHEAD',scope:'global',label:`Playhead ${formatTimeSimple(oldTime)} → ${formatTimeSimple(newTime)}`,before:oldTime,after:newTime,undo:e=>{applyPlayheadDirect(e.before);showToast(`Undo: Playhead`,'info');},redo:e=>{applyPlayheadDirect(e.after);showToast(`Redo: Playhead`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);applyPlayheadDirect(newTime);};const applyPlayheadDirect=time=>{localSelectionAnchorRef.current=time;if(isPlaying){setCurrentTime(time);stopAllPlayback();setTimeout(()=>{startOffsetTimeRef.current=time;startAudioTimeRef.current=getAudioContext().currentTime;startTrackPlayback(time);setIsPlaying(true);},50);}else{setCurrentTime(time);}};const setSelectionWithUndo=(newStart,newEnd,mode)=>{const oldStart=selectionRef.current.start;const oldEnd=selectionRef.current.end;const oldMode=selectionMode;if(oldStart===newStart&&oldEnd===newEnd&&oldMode===mode)return;const entry={type:'SET_SELECTION',scope:'global',label:`Selection`,before:{start:oldStart,end:oldEnd,mode:oldMode},after:{start:newStart,end:newEnd,mode:mode},undo:e=>{setSelectionStart(e.before.start);setSelectionEnd(e.before.end);setSelectionMode(e.before.mode);showToast(`Undo: Selection`,'info');},redo:e=>{setSelectionStart(e.after.start);setSelectionEnd(e.after.end);setSelectionMode(e.after.mode);showToast(`Redo: Selection`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);setSelectionStart(newStart);setSelectionEnd(newEnd);if(mode!==undefined)setSelectionMode(mode);};const setSelectedItemsWithUndo=newSet=>{const oldSet=selectedItemIdsRef.current;if(oldSet&&newSet&&oldSet.size===newSet.size&&[...oldSet].every(x=>newSet.has(x)))return;const entry={type:'SELECT_ITEMS',scope:'global',label:`Selection`,before:[...oldSet],after:[...newSet],undo:e=>{setSelectedItemIds(new Set(e.before));showToast(`Undo: Selection`,'info');},redo:e=>{setSelectedItemIds(new Set(e.after));showToast(`Redo: Selection`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);setSelectedItemIds(newSet);};const setAiPromptWithUndo=newText=>{const oldText=aiPrompt;if(oldText===newText)return;const entry={type:'SET_AI_PROMPT',scope:'global',label:`AI Prompt`,before:oldText,after:newText,undo:e=>{setAiPrompt(e.before);showToast(`Undo: AI Prompt`,'info');},redo:e=>{setAiPrompt(e.after);showToast(`Redo: AI Prompt`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);setAiPrompt(newText);};// Gán preset VST3 (.vstpreset từ thư viện storage/presets — cầu nối
-// Carla → pedalboard) vào track: preset_id nằm trong synth_engine → render
-// engine tải qua load_preset khi render → âm render = âm đã chỉnh trong Carla.
+const[undoStack,setUndoStack]=useState([]);const[redoStack,setRedoStack]=useState([]);const MAX_UNDO=30;const pushAction=(actionType,trackId,beforeState,afterState)=>{const node={action_type:actionType,track_id:trackId,timestamp:Date.now(),before_state:beforeState,after_state:afterState};setUndoStack(prev=>{const next=[...prev,node];if(next.length>MAX_UNDO)next.shift();return next;});setRedoStack([]);};const handleUndo=()=>{if(window.UndoRedoEngine&&window.UndoRedoEngine.canUndo()){const entry=window.UndoRedoEngine.undo();if(entry){if(entry.undo&&typeof entry.undo==='function')entry.undo(entry);showToast(`Undo: ${entry.label||entry.type}`,'info');return;}}if(undoStack.length===0)return;const last=undoStack[undoStack.length-1];setUndoStack(prev=>prev.slice(0,-1));setRedoStack(prev=>[...prev,last]);applyTrackState(last.track_id,last.before_state);showToast(`Undo: ${last.action_type}`,'info');};const handleRedo=()=>{if(window.UndoRedoEngine&&window.UndoRedoEngine.canRedo()){const entry=window.UndoRedoEngine.redo();if(entry){if(entry.redo&&typeof entry.redo==='function')entry.redo(entry);showToast(`Redo: ${entry.label||entry.type}`,'info');return;}}if(redoStack.length===0)return;const last=redoStack[redoStack.length-1];setRedoStack(prev=>prev.slice(0,-1));setUndoStack(prev=>[...prev,last]);applyTrackState(last.track_id,last.after_state);showToast(`Redo: ${last.action_type}`,'info');};const applyTrackState=(trackId,state)=>{if(trackId==='ALL_TRACKS'){state.forEach(entry=>{applyTrackState(entry.trackId,entry.state);});return;}updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;var updated={...t,...state};if(state.sections!==undefined){updated.sections=state.sections;}if(state.midiItems!==undefined){updated.midiItems=state.midiItems;}if(state.clips!==undefined){updated.clips=state.clips;}return updated;}));};const getSelectedMidiItemInfo=()=>{if(!selectedItemIds||selectedItemIds.size!==1)return null;const selId=selectedItemIds.values().next().value;const tlist=activeTracks||tracks||[];for(const t of tlist){const found=(t.midiItems||[]).find(m=>m.id===selId);if(found)return{itemName:found.name,trackName:t.name,trackId:t.id,itemId:selId,notes:found.notes||[],startTime:found.startTime||0,duration:found.duration||4};}return null;};const captureTrackSnapshot=trackId=>{const track=activeTracks.find(t=>t.id===trackId);if(!track)return null;return{volumeDb:track.volumeDb,pan:track.pan,muted:track.muted,name:track.name,markers:JSON.parse(JSON.stringify(track.markers||[])),buffer:track.buffer,startTime:track.startTime||0,clips:track.clips?track.clips.map(c=>({id:c.id,buffer:c.buffer,startTime:c.startTime,name:c.name})):null,sections:track.sections?track.sections.map(function(s){return{id:s.id,start:s.start,duration:s.duration,name:s.name,color:s.color,notes:s.notes?s.notes.map(function(n){return{id:n.id,pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:n.velocity};}):null,tracks:s.tracks?s.tracks.map(function(st){return{id:st.id,name:st.name,color:st.color,clips:st.clips?st.clips.map(function(c){return{id:c.id,startTime:c.startTime,name:c.name,speed:c.speed,buffer:c.buffer};}):null,midiItems:st.midiItems?st.midiItems.map(function(m){return{id:m.id,startTime:m.startTime,duration:m.duration,name:m.name,notes:m.notes?m.notes.map(function(n){return{id:n.id,pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:n.velocity};}):null};}):null};}):null};}):null,midiItems:track.midiItems?track.midiItems.map(function(m){return{id:m.id,startTime:m.startTime,duration:m.duration,name:m.name,notes:m.notes?m.notes.map(function(n){return{id:n.id,pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:n.velocity};}):null};}):null};};const captureAllTracksSnapshot=()=>{const curTracks=activeTracksRef.current||activeTracks||[];return curTracks.map(t=>({trackId:t.id,state:captureTrackSnapshot(t.id)}));};const setBpmWithUndo=newBpm=>{const oldBpm=bpmRef.current;if(String(oldBpm)===String(newBpm))return;const entry={type:'SET_BPM',scope:'global',label:`BPM ${oldBpm} → ${newBpm}`,before:oldBpm,after:newBpm,undo:e=>{setBpm(e.before);showToast(`Undo: BPM → ${e.before}`,'info');},redo:e=>{setBpm(e.after);showToast(`Redo: BPM → ${e.after}`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);setBpm(String(newBpm));};const setPlayheadWithUndo=newTime=>{const oldTime=currentTime;if(Math.abs(oldTime-newTime)<0.001)return;const entry={type:'SET_PLAYHEAD',scope:'global',label:`Playhead ${formatTimeSimple(oldTime)} → ${formatTimeSimple(newTime)}`,before:oldTime,after:newTime,undo:e=>{applyPlayheadDirect(e.before);showToast(`Undo: Playhead`,'info');},redo:e=>{applyPlayheadDirect(e.after);showToast(`Redo: Playhead`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);applyPlayheadDirect(newTime);};const applyPlayheadDirect=time=>{localSelectionAnchorRef.current=time;if(isPlaying){setCurrentTime(time);stopAllPlayback();setTimeout(()=>{startOffsetTimeRef.current=time;startAudioTimeRef.current=getAudioContext().currentTime;startTrackPlayback(time);setIsPlaying(true);},50);}else{setCurrentTime(time);}};const setSelectionWithUndo=(newStart,newEnd,mode)=>{const oldStart=selectionRef.current.start;const oldEnd=selectionRef.current.end;const oldMode=selectionMode;if(oldStart===newStart&&oldEnd===newEnd&&oldMode===mode)return;const entry={type:'SET_SELECTION',scope:'global',label:`Selection`,before:{start:oldStart,end:oldEnd,mode:oldMode},after:{start:newStart,end:newEnd,mode:mode},undo:e=>{setSelectionStart(e.before.start);setSelectionEnd(e.before.end);setSelectionMode(e.before.mode);showToast(`Undo: Selection`,'info');},redo:e=>{setSelectionStart(e.after.start);setSelectionEnd(e.after.end);setSelectionMode(e.after.mode);showToast(`Redo: Selection`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);setSelectionStart(newStart);setSelectionEnd(newEnd);if(mode!==undefined)setSelectionMode(mode);};const setSelectedItemsWithUndo=newSet=>{const oldSet=selectedItemIdsRef.current;if(oldSet&&newSet&&oldSet.size===newSet.size&&[...oldSet].every(x=>newSet.has(x)))return;const entry={type:'SELECT_ITEMS',scope:'global',label:`Selection`,before:[...oldSet],after:[...newSet],undo:e=>{setSelectedItemIds(new Set(e.before));showToast(`Undo: Selection`,'info');},redo:e=>{setSelectedItemIds(new Set(e.after));showToast(`Redo: Selection`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);setSelectedItemIds(newSet);};const setAiPromptWithUndo=newText=>{const oldText=aiPrompt;if(oldText===newText)return;const entry={type:'SET_AI_PROMPT',scope:'global',label:`AI Prompt`,before:oldText,after:newText,undo:e=>{setAiPrompt(e.before);showToast(`Undo: AI Prompt`,'info');},redo:e=>{setAiPrompt(e.after);showToast(`Redo: AI Prompt`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);setAiPrompt(newText);};// Gán preset VST3 (.vstpreset từ thư viện storage/presets) vào track:
+// preset_id nằm trong synth_engine → render engine tải qua load_preset khi
+// render → âm render = âm đã chỉnh trong preset.
 const setTrackPreset=(trackId,presetId)=>{if(!trackId||!presetId)return;var mt=activeTracksRef.current||tracks;var cur=null;for(var ci=0;ci<mt.length;ci++){if(mt[ci].id===trackId){cur=mt[ci];break;}}if(!cur)return;var se=cur.synth_engine||{};if(!se.plugin_id||String(se.type||'').indexOf('vst')===-1){showToast('Chọn VST instrument trước khi gán preset','warning');return;}updateActiveTracks(prev=>prev.map(t=>t.id===trackId?{...t,synth_engine:{...(t.synth_engine||{}),preset_id:presetId}}:t));setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);var p=(window.SonicRuntime&&window.SonicRuntime.presets||[]).find(function(x){return x.id===presetId;});showToast('Đã gán preset: '+(p&&p.name||presetId),'success');};const setTrackInstrumentWithUndo=(trackId,instrumentId,displayName,bankNumber,programNumber)=>{const track=activeTracks.find(t=>t.id===trackId);if(!track)return;const oldInstrumentId=track.instrumentId;const oldInstrumentName=track.instrumentName;if(oldInstrumentId===instrumentId&&oldInstrumentName===displayName)return;const entry={type:'SET_INSTRUMENT',scope:'track:'+trackId,label:`Instrument ${track.name}`,before:{instrumentId:oldInstrumentId,instrumentName:oldInstrumentName,bankNumber:track.soundfont_bank,programNumber:track.instrumentProgram},after:{instrumentId,instrumentName:displayName,bankNumber,programNumber},undo:e=>{setTrackInstrumentWithProgram(trackId,e.before.instrumentId,e.before.programNumber,e.before.instrumentName,e.before.bankNumber);showToast(`Undo: Instrument`,'info');},redo:e=>{setTrackInstrumentWithProgram(trackId,e.after.instrumentId,e.after.programNumber,e.after.instrumentName,e.after.bankNumber);showToast(`Redo: Instrument`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);setTrackInstrumentWithProgram(trackId,instrumentId,programNumber,displayName,bankNumber);};const createSectionWithUndo=(trackId,section)=>{const entry={type:'CREATE_SECTION',scope:'track:'+trackId,label:`Create Section`,before:null,after:section,undo:e=>{updateActiveTracks(prev=>prev.map(t=>t.id===trackId?{...t,sections:(t.sections||[]).filter(s=>s.id!==e.after.id)}:t));showToast(`Undo: Create Section`,'info');},redo:e=>{updateActiveTracks(prev=>prev.map(t=>t.id===trackId?{...t,sections:[...(t.sections||[]),e.after]}:t));showToast(`Redo: Create Section`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);};const createMidiWithUndo=(trackId,midiItem)=>{const entry={type:'CREATE_MIDI',scope:'track:'+trackId,label:`Create MIDI Item`,before:null,after:midiItem,undo:e=>{updateActiveTracks(prev=>prev.map(t=>t.id===trackId?{...t,midiItems:(t.midiItems||[]).filter(m=>m.id!==e.after.id)}:t));showToast(`Undo: Create MIDI`,'info');},redo:e=>{updateActiveTracks(prev=>prev.map(t=>t.id===trackId?{...t,midiItems:[...(t.midiItems||[]),e.after]}:t));showToast(`Redo: Create MIDI`,'info');}};if(window.UndoRedoEngine)window.UndoRedoEngine.execute(entry);};// Export MIDI notes → audio bằng VSTi: midi-render (pedalboard) → chèn clip
 // vào track (cùng flow insert sound clip, có undo) + download file wav.
 const handleExportMidiAudio=async(st,notes,bpm)=>{const se=st.synth_engine||{};const instrumentId=se.plugin_id||st.instrumentId||null;if(!instrumentId||String(se.type||'').indexOf('vst')===-1){showToast('Chọn VST instrument (nút Synth) trước khi Export MIDI → Audio','warning');return;}if(!notes||!notes.length){showToast('Chưa có nốt nhạc','warning');return;}const payload={instrument_id:instrumentId,notes:(notes||[]).map(n=>({pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:n.velocity!=null?n.velocity:0.8})),bpm:parseFloat(bpm)||120,preset_id:se.preset_id||undefined,preset_path:se.preset_path||undefined,preset_data:se.preset_data||undefined};try{const res=await window.SonicAPI.midiRender(payload);// Decode wav để chèn clip có buffer (phát được ngay trong track)
@@ -1284,7 +1245,7 @@ try{(restoredSessionTabs||[]).forEach(function(st){var secCount=0,midiCount=0,cl
 localStorage.removeItem('sonic_project_id');localStorage.removeItem('sonic_project_name');return false;}};// Khoi phuc du an dang lam do tu temp autosave, CHI khi chua co project nao
 // duoc restore (restoreLastSessionProject tra false). Goi o ca luong login
 // modal (handleAuthSuccess) lan luong auto-login (checkAuthStatus).
-const restoreTempProjectIfFresh=async()=>{try{const tmp=await window.SonicAPI.getTempProject();if(tmp&&tmp.has_temp&&tmp.data_json){let proj=tmp.data_json;if(typeof proj==='string'){try{proj=JSON.parse(proj);}catch(e){proj=null;}}if(proj&&proj.main_session){const freshStart=!(tracks&&tracks.some(t=>t.clips&&t.clips.length>0||t.midiItems&&t.midiItems.length>0||t.buffer));if(freshStart){const result=deserializeProjectFromSchema(proj);if(result&&result.tracks&&result.tracks.length>0){setTracks(result.tracks);loadAudioBuffersForTracks(result.tracks);setBpm((result.bpm||120).toString());if(result.sessionTabs&&result.sessionTabs.length>0)setSessionTabs(result.sessionTabs);if(result.subTabs&&result.subTabs.length>0)setSubTabs(result.subTabs);if(result.masteringSettings)setMasteringSettings(result.masteringSettings);if(result.masterVolume!==undefined&&result.masterVolume!==null)setMasterVolume(result.masterVolume);const tmpName=proj.metadata&&proj.metadata.title||'Dự án tạm';setProjectName(tmpName);localStorage.setItem('sonic_project_name',tmpName);showToast('Đã khôi phục dự án đang làm dở từ bản lưu tạm','success');}}}}}catch(e){console.warn('[TempRestore] error:',e);}};useEffect(()=>{const checkAuthStatus=async()=>{const savedToken=localStorage.getItem('sonic_token');if(!savedToken){setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);return;}try{const profile=await window.SonicAPI.getProfile();setCurrentUser(profile);localStorage.setItem('sonic_user',JSON.stringify(profile));if(profile.must_change_password){setIsMandatoryLogin(true);setAuthMode('force_change');setAuthModalOpen(true);}else{setIsMandatoryLogin(false);setAuthModalOpen(false);(async()=>{const restored=await restoreLastSessionProject();if(!restored)await restoreTempProjectIfFresh();})();}}catch(err){const cached=localStorage.getItem('sonic_user');if(cached){try{setCurrentUser(JSON.parse(cached));}catch(_){}setIsMandatoryLogin(false);setAuthModalOpen(false);(async()=>{const restored=await restoreLastSessionProject();if(!restored)await restoreTempProjectIfFresh();})();}else{localStorage.removeItem('sonic_token');localStorage.removeItem('sonic_user');setCurrentUser(null);setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);}}};checkAuthStatus();},[]);const loadPendingSfsProject=()=>{const proj=window.__pendingSfsProject;if(!proj)return;try{let restoredTracks=[];let restoredBpm=bpm;let restoredSessionTabs=[];let restoredSubTabs=[];if(proj.main_session){const result=deserializeProjectFromSchema(proj);restoredTracks=result.tracks;restoredBpm=result.bpm;restoredSessionTabs=result.sessionTabs;restoredSubTabs=result.subTabs;if(result.masteringSettings){setMasteringSettings(result.masteringSettings);}else{setMasteringSettings({masterConnected:false,activeModule:null,eqActive:false,imagerActive:false,maximizerActive:false,eqLowGain:1.5,eqMid1Gain:-1.0,eqMid2Gain:2.0,eqHighGain:1.8,w1:0,w2:115,w3:135,w4:150,imagerScale:'v2',maxGain:5.4,maxUpward:2.0,maxSoftClip:15,maxTransient:25,ceiling:-0.1,isBypassed:false,chain:[],compActive:false,compThreshold:-16,compRatio:3,compMakeup:0,limActive:false,limThreshold:-1.0,excActive:false,excDrive:40,rebalActive:false,rebalMid:0,rebalSide:0,carlaBridgeActive:false,carlaBridge:{plugin:'',plugin_path:'',connected:false}});}if(result.masterVolume!==undefined&&result.masterVolume!==null)setMasterVolume(result.masterVolume);}else{restoredTracks=(proj.tracks||[]).map(t=>{const{height:_h,...rest}=t;return{...rest,buffer:null,channelInfo:t.channelInfo||null,clips:t.clips||[],serverFileId:t.serverFileId||null};});}if(restoredTracks.length>0){setTracks(restoredTracks);setBpm(restoredBpm.toString());prerenderNativeTracks(restoredTracks,restoredBpm);if(restoredSessionTabs.length>0){setSessionTabs(restoredSessionTabs);}if(restoredSubTabs.length>0){setSubTabs(restoredSubTabs);}showToast(`Đã tải dự án "${proj.metadata?.title||proj.name||'Dự án mới'}" từ liên kết .sfs thành công!`,"success");}}catch(e){showToast("Lỗi tải dự án từ .sfs","error");}finally{window.__pendingSfsProject=null;}};const handleAuthSuccess=user=>{setCurrentUser(user);if(user.must_change_password){setIsMandatoryLogin(true);setAuthMode('force_change');setAuthModalOpen(true);}else{setIsMandatoryLogin(false);setAuthModalOpen(false);(async()=>{const restored=await restoreLastSessionProject();if(!restored)await restoreTempProjectIfFresh();})();const loadPrefs=p=>{if(!p)return;if(p.showAIPanel!==undefined)setShowAIPanel(p.showAIPanel);if(p.showExportPanel!==undefined)setShowExportPanel(p.showExportPanel);if(p.showSelectionPanel!==undefined)setShowSelectionPanel(p.showSelectionPanel);if(p.showPythonToolsPanel!==undefined)setShowPythonToolsPanel(p.showPythonToolsPanel);if(p.showMediaExplorer!==undefined)setShowMediaExplorer(p.showMediaExplorer);if(p.showFxRack!==undefined)setShowFxRack(p.showFxRack);if(p.showMidiEvents!==undefined)setShowMidiEvents(p.showMidiEvents);if(p.panelPositions)setPanelPositions(p.panelPositions);if(p.rightSidebarWidth)setRightSidebarWidth(p.rightSidebarWidth);if(p.mediaExplorerHeight)setMediaExplorerHeight(p.mediaExplorerHeight);if(p.selectedProviderId)setSelectedProviderId(p.selectedProviderId);};(async()=>{try{const data=await window.SonicAPI.getPreferences();if(data&&data.preferences)loadPrefs(data.preferences);else{const cached=localStorage.getItem('sonic_preferences');if(cached)loadPrefs(JSON.parse(cached));}}catch(e){const cached=localStorage.getItem('sonic_preferences');if(cached)loadPrefs(JSON.parse(cached));}try{const data=await window.SonicAPI.getAIConfigs();if(data&&data.providers){setAiProviders(data.providers);const active=data.providers.find(p=>p.is_active)||data.providers[0];if(active)setSelectedProviderId(active.id);}}catch(e){}try{window.SonicAPI.getSoundfontCatalog().then(cat=>{window.__soundfontCatalog=cat;}).catch(()=>{});}catch(e){}// Re-fetch instrument data after auth (useEffect on mount runs before token is set)
+const restoreTempProjectIfFresh=async()=>{try{const tmp=await window.SonicAPI.getTempProject();if(tmp&&tmp.has_temp&&tmp.data_json){let proj=tmp.data_json;if(typeof proj==='string'){try{proj=JSON.parse(proj);}catch(e){proj=null;}}if(proj&&proj.main_session){const freshStart=!(tracks&&tracks.some(t=>t.clips&&t.clips.length>0||t.midiItems&&t.midiItems.length>0||t.buffer));if(freshStart){const result=deserializeProjectFromSchema(proj);if(result&&result.tracks&&result.tracks.length>0){setTracks(result.tracks);loadAudioBuffersForTracks(result.tracks);setBpm((result.bpm||120).toString());if(result.sessionTabs&&result.sessionTabs.length>0)setSessionTabs(result.sessionTabs);if(result.subTabs&&result.subTabs.length>0)setSubTabs(result.subTabs);if(result.masteringSettings)setMasteringSettings(result.masteringSettings);if(result.masterVolume!==undefined&&result.masterVolume!==null)setMasterVolume(result.masterVolume);const tmpName=proj.metadata&&proj.metadata.title||'Dự án tạm';setProjectName(tmpName);localStorage.setItem('sonic_project_name',tmpName);showToast('Đã khôi phục dự án đang làm dở từ bản lưu tạm','success');}}}}}catch(e){console.warn('[TempRestore] error:',e);}};useEffect(()=>{const checkAuthStatus=async()=>{const savedToken=localStorage.getItem('sonic_token');if(!savedToken){setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);return;}try{const profile=await window.SonicAPI.getProfile();setCurrentUser(profile);localStorage.setItem('sonic_user',JSON.stringify(profile));if(profile.must_change_password){setIsMandatoryLogin(true);setAuthMode('force_change');setAuthModalOpen(true);}else{setIsMandatoryLogin(false);setAuthModalOpen(false);(async()=>{const restored=await restoreLastSessionProject();if(!restored)await restoreTempProjectIfFresh();})();}}catch(err){const cached=localStorage.getItem('sonic_user');if(cached){try{setCurrentUser(JSON.parse(cached));}catch(_){}setIsMandatoryLogin(false);setAuthModalOpen(false);(async()=>{const restored=await restoreLastSessionProject();if(!restored)await restoreTempProjectIfFresh();})();}else{localStorage.removeItem('sonic_token');localStorage.removeItem('sonic_user');setCurrentUser(null);setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);}}};checkAuthStatus();},[]);const loadPendingSfsProject=()=>{const proj=window.__pendingSfsProject;if(!proj)return;try{let restoredTracks=[];let restoredBpm=bpm;let restoredSessionTabs=[];let restoredSubTabs=[];if(proj.main_session){const result=deserializeProjectFromSchema(proj);restoredTracks=result.tracks;restoredBpm=result.bpm;restoredSessionTabs=result.sessionTabs;restoredSubTabs=result.subTabs;if(result.masteringSettings){setMasteringSettings(result.masteringSettings);}else{setMasteringSettings({masterConnected:false,activeModule:null,eqActive:false,imagerActive:false,maximizerActive:false,eqLowGain:1.5,eqMid1Gain:-1.0,eqMid2Gain:2.0,eqHighGain:1.8,w1:0,w2:115,w3:135,w4:150,imagerScale:'v2',maxGain:5.4,maxUpward:2.0,maxSoftClip:15,maxTransient:25,ceiling:-0.1,isBypassed:false,chain:[],compActive:false,compThreshold:-16,compRatio:3,compMakeup:0,limActive:false,limThreshold:-1.0,excActive:false,excDrive:40,rebalActive:false,rebalMid:0,rebalSide:0});}if(result.masterVolume!==undefined&&result.masterVolume!==null)setMasterVolume(result.masterVolume);}else{restoredTracks=(proj.tracks||[]).map(t=>{const{height:_h,...rest}=t;return{...rest,buffer:null,channelInfo:t.channelInfo||null,clips:t.clips||[],serverFileId:t.serverFileId||null};});}if(restoredTracks.length>0){setTracks(restoredTracks);setBpm(restoredBpm.toString());prerenderNativeTracks(restoredTracks,restoredBpm);if(restoredSessionTabs.length>0){setSessionTabs(restoredSessionTabs);}if(restoredSubTabs.length>0){setSubTabs(restoredSubTabs);}showToast(`Đã tải dự án "${proj.metadata?.title||proj.name||'Dự án mới'}" từ liên kết .sfs thành công!`,"success");}}catch(e){showToast("Lỗi tải dự án từ .sfs","error");}finally{window.__pendingSfsProject=null;}};const handleAuthSuccess=user=>{setCurrentUser(user);if(user.must_change_password){setIsMandatoryLogin(true);setAuthMode('force_change');setAuthModalOpen(true);}else{setIsMandatoryLogin(false);setAuthModalOpen(false);(async()=>{const restored=await restoreLastSessionProject();if(!restored)await restoreTempProjectIfFresh();})();const loadPrefs=p=>{if(!p)return;if(p.showAIPanel!==undefined)setShowAIPanel(p.showAIPanel);if(p.showExportPanel!==undefined)setShowExportPanel(p.showExportPanel);if(p.showSelectionPanel!==undefined)setShowSelectionPanel(p.showSelectionPanel);if(p.showPythonToolsPanel!==undefined)setShowPythonToolsPanel(p.showPythonToolsPanel);if(p.showMediaExplorer!==undefined)setShowMediaExplorer(p.showMediaExplorer);if(p.showFxRack!==undefined)setShowFxRack(p.showFxRack);if(p.showMidiEvents!==undefined)setShowMidiEvents(p.showMidiEvents);if(p.panelPositions)setPanelPositions(p.panelPositions);if(p.rightSidebarWidth)setRightSidebarWidth(p.rightSidebarWidth);if(p.mediaExplorerHeight)setMediaExplorerHeight(p.mediaExplorerHeight);if(p.selectedProviderId)setSelectedProviderId(p.selectedProviderId);};(async()=>{try{const data=await window.SonicAPI.getPreferences();if(data&&data.preferences)loadPrefs(data.preferences);else{const cached=localStorage.getItem('sonic_preferences');if(cached)loadPrefs(JSON.parse(cached));}}catch(e){const cached=localStorage.getItem('sonic_preferences');if(cached)loadPrefs(JSON.parse(cached));}try{const data=await window.SonicAPI.getAIConfigs();if(data&&data.providers){setAiProviders(data.providers);const active=data.providers.find(p=>p.is_active)||data.providers[0];if(active)setSelectedProviderId(active.id);}}catch(e){}try{window.SonicAPI.getSoundfontCatalog().then(cat=>{window.__soundfontCatalog=cat;}).catch(()=>{});}catch(e){}// Re-fetch instrument data after auth (useEffect on mount runs before token is set)
 try{window.SonicAPI.listPlugins().then(async data=>{try{const catResp=(await window.SonicAPI.getSoundfontCatalog?.())??(await fetch('/api/v1/plugins/soundfonts/catalog').then(r=>r.json()));const catalog=catResp.full_catalog||{};data.soundfonts=(data.soundfonts||[]).map(sf=>{const sfId=sf.id.replace('sf_','');const catEntry=catalog[sfId.toLowerCase()]||catalog[sfId];if(catEntry&&catEntry.instruments)return{...sf,presets:catEntry.instruments};return sf;});}catch(e){console.warn('Catalog fetch error:',e);}setInstrumentSelectorData(data);}).catch(()=>{});}catch(e){}})();}};const handleLogout=()=>{localStorage.removeItem('sonic_token');localStorage.removeItem('sonic_user');setCurrentUser(null);setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);};// ── Temp project auto-save (local + server) ──
 useEffect(()=>{const serializeSafe=arr=>(arr||[]).map(t=>({id:t.id,name:t.name,startTime:t.startTime,height:t.height,volumeDb:t.volumeDb,pan:t.pan,muted:t.muted,solo:t.solo,color:t.color,markers:t.markers||[],serverFileId:t.serverFileId||null,channelInfo:t.channelInfo?{channels:t.channelInfo.channels,isStereo:t.channelInfo.isStereo,label:t.channelInfo.label}:null}));window.SonicStorage.scheduleTempAutoSave(()=>{return serializeProjectToSchema(currentProjectId||'temp_project',projectName||'Dự án tạm chưa lưu',bpm,tracks,subTabs,sessionTabs,masteringSettings,masterVolume);});},[tracks,subTabs,sessionTabs,masteringSettings,masterVolume]);// ── Temp autosave SERVER khi tắt ứng dụng (Bug: đóng app mất dự án làm dở) ──
 // Lưu temp vào thư mục temp của ứng dụng (storage/temp + DB) khi:
@@ -1502,10 +1463,10 @@ if(isLoopingSelection){(activeTracks||[]).forEach(_t=>(_t.sections||[]).forEach(
 const _tabNow=activeTabRef.current;if(_tabNow!=='main'&&!(_tabNow&&_tabNow.startsWith('session_')))return;if(zoom<minZoom){console.log('[Zoom] ép lên minZoom=',minZoom.toFixed(2),'(zoom=',zoom.toFixed(2),') tab=',activeTab,'maxDuration=',maxDuration.toFixed(2));setZoom(minZoom);}},[minZoom]);const playheadLeftPos=useMemo(()=>(currentTime+leadInMargin)*zoom,[currentTime,zoom,leadInMargin]);const selLeft=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.max(0,Math.min(localSelectionStart,localSelectionEnd));}if(selectionStart===null||selectionEnd===null)return null;return Math.max(0,Math.min(selectionStart,selectionEnd));},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const selRight=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.max(0,Math.max(localSelectionStart,localSelectionEnd));}if(selectionStart===null||selectionEnd===null)return null;return Math.max(0,Math.max(selectionStart,selectionEnd));},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const dspSelectionStats=useMemo(()=>{const track=tracks.find(t=>t.id===selectedTrackId);if(!track)return null;const numChannels=track.buffer?track.buffer.numberOfChannels||1:0;if(selLeft===null||selRight===null||selRight<=selLeft||!track.buffer){return{trackName:track.name,channels:numChannels,timeRange:'Chưa chọn vùng',peakVolume:'N/A'};}const buffer=track.buffer;const sampleRate=buffer.sampleRate;const startSample=Math.max(0,Math.min(buffer.length-1,Math.floor(selLeft*sampleRate)));const endSample=Math.max(0,Math.min(buffer.length,Math.floor(selRight*sampleRate)));let maxVal=0;for(let c=0;c<numChannels;c++){const data=buffer.getChannelData(c);for(let i=startSample;i<endSample;i++){const val=Math.abs(data[i]);if(val>maxVal)maxVal=val;}}let peakDb='N/A';if(maxVal>0){const db=20*Math.log10(maxVal);peakDb=db.toFixed(2)+' dB';}else{peakDb='-∞ dB';}return{trackName:track.name,channels:numChannels,timeRange:`${selLeft.toFixed(2)}s - ${selRight.toFixed(2)}s (${(selRight-selLeft).toFixed(2)}s)`,peakVolume:peakDb};},[tracks,selectedTrackId,selLeft,selRight]);// ── Toast helper ──
 const showToast=(text,type='info',actionText=null,onActionClick=null)=>{if(toastTimeoutRef.current)clearTimeout(toastTimeoutRef.current);setToastMessage({text,type,actionText,onActionClick});toastTimeoutRef.current=setTimeout(()=>setToastMessage(null),actionText?8000:3500);};window.showToast=showToast;// ── Virtual MIDI Keyboard note routing (Phase 5) ────────────────────────
 // NOTE_ON/NOTE_OFF theo pattern attachMidiHandler (hardware MIDI): bridge →
-// per-track channel alloc; native SF/VST; SonicSF fallback; Carla; VU + giữ
+// per-track channel alloc; native SF/VST; SonicSF fallback; VU + giữ
 // counter (heldMidiNotesRef); forward recorder (live record vào midiItems).
-const vkbNoteOn=(pitch,vel)=>{try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(er){}const allTracks=activeTracksRef.current||[];const armed=allTracks.filter(function(t){return t.isArmed;});const targets=armed.length?armed:allTracks;if(!armed.length&&!window.__vkbNoArmToast){window.__vkbNoArmToast=true;showToast('Không có track nào ARM — chơi vào tất cả track.','info');}activeMidiPitchesRef.current.add(pitch);setActiveMidiPitches(new Set(activeMidiPitchesRef.current));vkbHeldRef.current.add(pitch);targets.forEach(function(t){const ctx=resolveTrackInstrumentCtx(t,allTracks);ensureSonicInstrument(ctx);if(window.triggerMidiVuActivity)window.triggerMidiVuActivity(t.id,Math.round(vel*127));try{heldMidiNotesRef.current[t.id]=(heldMidiNotesRef.current[t.id]||0)+1;}catch(err){}const percussion=!!(ctx&&ctx.synthEngine&&ctx.synthEngine.soundfont_bank===128);if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){try{if(window.__ensureBridgeProgram)window.__ensureBridgeProgram(t.id,ctx.program,ctx.synthEngine);}catch(er){}try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_ON',channel:t.id,pitch:pitch,velocity:vel,percussion:percussion,live:true});}catch(e){}}else if(isStandaloneSf()&&(isSfTrackEngine(ctx.synthEngine)||isVstTrackEngine(ctx.synthEngine))&&!shouldRouteCarla(ctx.synthEngine)){if(isSfTrackEngine(ctx.synthEngine))playNativeSfNote(t,pitch,vel,60000,undefined,'vkb_'+t.id+'_'+pitch);else playNativeVstNote(t,pitch,vel,60000,undefined,'vkb_'+t.id+'_'+pitch);}else if(window.SonicSF){const dest=activeTrackNodesRef.current[t.id]&&activeTrackNodesRef.current[t.id].gainNode||null;window.SonicSF.playNote(pitch,Math.max(1,Math.round(vel*127)),60000,undefined,ctx.program,dest,ctx.ch,ctx.synthEngine);}if(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoute(ctx.synthEngine,t.isArmed)){try{window.SonicCarlaMidi.noteOn(ctx.ch,pitch,Math.max(1,Math.round(vel*127)));}catch(e){}}});// Live record: forward tới mọi recorder đang chạy (timeline take / piano roll)
-if(activeMIDIRecordersRef.current){const msg={data:[0x90,pitch,Math.max(1,Math.round(vel*127))]};for(const trackId in activeMIDIRecordersRef.current){const rec=activeMIDIRecordersRef.current[trackId];if(rec){try{rec.handleMIDIMessage(msg,null);}catch(e){}}}}};const vkbNoteOff=pitch=>{vkbHeldRef.current.delete(pitch);activeMidiPitchesRef.current.delete(pitch);setActiveMidiPitches(new Set(activeMidiPitchesRef.current));const allTracks=activeTracksRef.current||[];allTracks.forEach(function(t){const ctx=resolveTrackInstrumentCtx(t,allTracks);const percussion=!!(ctx&&ctx.synthEngine&&ctx.synthEngine.soundfont_bank===128);if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_OFF',channel:t.id,pitch:pitch,velocity:0,percussion:percussion,live:true});}catch(e){}}else if(window.SonicSF&&window.SonicSF.stopNote){if(isStandaloneSf()){stopNativeSfNote('vkb_'+t.id+'_'+pitch);stopNativeVstNote('vkb_'+t.id+'_'+pitch);}window.SonicSF.stopNote(ctx.ch,pitch);if(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoute(t.synth_engine,t.isArmed)){try{window.SonicCarlaMidi.noteOff(ctx.ch,pitch);}catch(e){}}}try{if(heldMidiNotesRef.current[t.id]!==undefined){heldMidiNotesRef.current[t.id]=Math.max(0,heldMidiNotesRef.current[t.id]-1);if(heldMidiNotesRef.current[t.id]===0)delete heldMidiNotesRef.current[t.id];}}catch(err){}});if(activeMIDIRecordersRef.current){const msg={data:[0x80,pitch,0]};for(const trackId in activeMIDIRecordersRef.current){const rec=activeMIDIRecordersRef.current[trackId];if(rec){try{rec.handleMIDIMessage(msg,null);}catch(e){}}}}};vkbNoteOnRef.current=vkbNoteOn;vkbNoteOffRef.current=vkbNoteOff;window.__toggleVkb=function(){setVkbOpen(function(p){const next=!p;if(!next&&vkbHeldRef.current.size){Array.from(vkbHeldRef.current).forEach(function(pitch){try{vkbNoteOffRef.current(pitch);}catch(e){}});}return next;});};window.__toggleChordsPanel=function(){setChordsPanelOpen(function(p){return!p;});};// ── Server-side upload ──
+const vkbNoteOn=(pitch,vel)=>{try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(er){}const allTracks=activeTracksRef.current||[];const armed=allTracks.filter(function(t){return t.isArmed;});const targets=armed.length?armed:allTracks;if(!armed.length&&!window.__vkbNoArmToast){window.__vkbNoArmToast=true;showToast('Không có track nào ARM — chơi vào tất cả track.','info');}activeMidiPitchesRef.current.add(pitch);setActiveMidiPitches(new Set(activeMidiPitchesRef.current));vkbHeldRef.current.add(pitch);targets.forEach(function(t){const ctx=resolveTrackInstrumentCtx(t,allTracks);ensureSonicInstrument(ctx);if(window.triggerMidiVuActivity)window.triggerMidiVuActivity(t.id,Math.round(vel*127));try{heldMidiNotesRef.current[t.id]=(heldMidiNotesRef.current[t.id]||0)+1;}catch(err){}const percussion=!!(ctx&&ctx.synthEngine&&ctx.synthEngine.soundfont_bank===128);if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){try{if(window.__ensureBridgeProgram)window.__ensureBridgeProgram(t.id,ctx.program,ctx.synthEngine);}catch(er){}try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_ON',channel:t.id,pitch:pitch,velocity:vel,percussion:percussion,live:true});}catch(e){}}else if(isStandaloneSf()&&(isSfTrackEngine(ctx.synthEngine)||isVstTrackEngine(ctx.synthEngine))){if(isSfTrackEngine(ctx.synthEngine))playNativeSfNote(t,pitch,vel,60000,undefined,'vkb_'+t.id+'_'+pitch);else playNativeVstNote(t,pitch,vel,60000,undefined,'vkb_'+t.id+'_'+pitch);}else if(window.SonicSF){const dest=activeTrackNodesRef.current[t.id]&&activeTrackNodesRef.current[t.id].gainNode||null;window.SonicSF.playNote(pitch,Math.max(1,Math.round(vel*127)),60000,undefined,ctx.program,dest,ctx.ch,ctx.synthEngine);}});// Live record: forward tới mọi recorder đang chạy (timeline take / piano roll)
+if(activeMIDIRecordersRef.current){const msg={data:[0x90,pitch,Math.max(1,Math.round(vel*127))]};for(const trackId in activeMIDIRecordersRef.current){const rec=activeMIDIRecordersRef.current[trackId];if(rec){try{rec.handleMIDIMessage(msg,null);}catch(e){}}}}};const vkbNoteOff=pitch=>{vkbHeldRef.current.delete(pitch);activeMidiPitchesRef.current.delete(pitch);setActiveMidiPitches(new Set(activeMidiPitchesRef.current));const allTracks=activeTracksRef.current||[];allTracks.forEach(function(t){const ctx=resolveTrackInstrumentCtx(t,allTracks);const percussion=!!(ctx&&ctx.synthEngine&&ctx.synthEngine.soundfont_bank===128);if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_OFF',channel:t.id,pitch:pitch,velocity:0,percussion:percussion,live:true});}catch(e){}}else if(window.SonicSF&&window.SonicSF.stopNote){if(isStandaloneSf()){stopNativeSfNote('vkb_'+t.id+'_'+pitch);stopNativeVstNote('vkb_'+t.id+'_'+pitch);}window.SonicSF.stopNote(ctx.ch,pitch);}try{if(heldMidiNotesRef.current[t.id]!==undefined){heldMidiNotesRef.current[t.id]=Math.max(0,heldMidiNotesRef.current[t.id]-1);if(heldMidiNotesRef.current[t.id]===0)delete heldMidiNotesRef.current[t.id];}}catch(err){}});if(activeMIDIRecordersRef.current){const msg={data:[0x80,pitch,0]};for(const trackId in activeMIDIRecordersRef.current){const rec=activeMIDIRecordersRef.current[trackId];if(rec){try{rec.handleMIDIMessage(msg,null);}catch(e){}}}}};vkbNoteOnRef.current=vkbNoteOn;vkbNoteOffRef.current=vkbNoteOff;window.__toggleVkb=function(){setVkbOpen(function(p){const next=!p;if(!next&&vkbHeldRef.current.size){Array.from(vkbHeldRef.current).forEach(function(pitch){try{vkbNoteOffRef.current(pitch);}catch(e){}});}return next;});};window.__toggleChordsPanel=function(){setChordsPanelOpen(function(p){return!p;});};// ── Server-side upload ──
 // WAV encoder tối thiểu — upload buffer-only clip khi LƯU (nếu chưa có
 // serverFileId — upload sớm thất bại/race → clip mất sau reload).
 // ── Lossless WAV encode helpers (lossless-audio-compliance skill) ─────────
@@ -1752,9 +1713,9 @@ const subAnalyser=context.createAnalyser();subAnalyser.fftSize=256;subAnalyser.s
 // parent có route riêng với bypass riêng — parent audio_bypass=true →
 // nối qua parent làm MIDI/audio section bị kéo vào dry bus = bypass
 // mastering dù sub-track ♪/A đang tắt).
-if(window.masterBus&&window.masterBus.input){routeGain.connect(window.masterBus.input);}else{routeGain.connect(parentNode);}if(window.masterBus&&window.masterBus.dryInput){dryGain.connect(window.masterBus.dryInput);}else{dryGain.connect(parentNode);}node={gainNode,pannerNode:null,analyserNode:subAnalyser,route:{routeGain:routeGain,dryGain:dryGain,_trackId:subTrack.id}};activeTrackNodesRef.current[subKey]=node;}return node.gainNode;};const playMidiPreviewNote=(pitch,velocity=0.8,durationMs=500)=>{if(!window.SonicSF)return;const context=getAudioContext();const tab=subTabs.find(s=>s.id===activeTabRef.current);const trackId=tab?tab.trackId:selectedTrackId;const track=activeTracks.find(t=>t.id===trackId);const destNode=getOrCreateTrackNode(track,context);const program=track?track.instrumentProgram:undefined;var prevCh=track?assignTrackMidiChannel(track,activeTracks):0;const routeCarla=shouldRouteCarla(track&&track.synth_engine);// D7: bridge active → preview qua bridge (channel router allocate — đúng
+if(window.masterBus&&window.masterBus.input){routeGain.connect(window.masterBus.input);}else{routeGain.connect(parentNode);}if(window.masterBus&&window.masterBus.dryInput){dryGain.connect(window.masterBus.dryInput);}else{dryGain.connect(parentNode);}node={gainNode,pannerNode:null,analyserNode:subAnalyser,route:{routeGain:routeGain,dryGain:dryGain,_trackId:subTrack.id}};activeTrackNodesRef.current[subKey]=node;}return node.gainNode;};const playMidiPreviewNote=(pitch,velocity=0.8,durationMs=500)=>{if(!window.SonicSF)return;const context=getAudioContext();const tab=subTabs.find(s=>s.id===activeTabRef.current);const trackId=tab?tab.trackId:selectedTrackId;const track=activeTracks.find(t=>t.id===trackId);const destNode=getOrCreateTrackNode(track,context);const program=track?track.instrumentProgram:undefined;var prevCh=track?assignTrackMidiChannel(track,activeTracks):0;// D7: bridge active → preview qua bridge (channel router allocate — đúng
 // instrument đã load khi chèn vào track).
-if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){const isPerc=!!(track&&track.synth_engine&&track.synth_engine.soundfont_bank===128);const tch=track?track.id:0;try{if(window.__ensureBridgeProgram)window.__ensureBridgeProgram(tch,program,track&&track.synth_engine);}catch(e){}try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_ON',channel:tch,pitch:pitch||60,velocity:velocity,percussion:isPerc,live:true});}catch(e){}setTimeout(function(){try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_OFF',channel:tch,pitch:pitch||60,velocity:0,percussion:isPerc,live:true});}catch(e){}},(durationMs||500)+30);return;}if(isStandaloneSf()&&!routeCarla&&isSfTrackEngine(track&&track.synth_engine)){playNativeSfNote(track,pitch,velocity,durationMs,null,track?track.id:'global');return;}if(isStandaloneSf()&&!routeCarla&&isVstTrackEngine(track&&track.synth_engine)){playNativeVstNote(track,pitch,velocity,durationMs,null,track?track.id:'global');return;}window.SonicSF.playNote(pitch,velocity,durationMs,context.currentTime,program,destNode,prevCh,track?track.synth_engine:undefined);};// D2: timeline MIDI note -> native bridge (khi bridge active) thay vì
+if(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive()){const isPerc=!!(track&&track.synth_engine&&track.synth_engine.soundfont_bank===128);const tch=track?track.id:0;try{if(window.__ensureBridgeProgram)window.__ensureBridgeProgram(tch,program,track&&track.synth_engine);}catch(e){}try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_ON',channel:tch,pitch:pitch||60,velocity:velocity,percussion:isPerc,live:true});}catch(e){}setTimeout(function(){try{window.SonicMidiRouter.pushEvent({cmd:'NOTE_OFF',channel:tch,pitch:pitch||60,velocity:0,percussion:isPerc,live:true});}catch(e){}},(durationMs||500)+30);return;}if(isStandaloneSf()&&isSfTrackEngine(track&&track.synth_engine)){playNativeSfNote(track,pitch,velocity,durationMs,null,track?track.id:'global');return;}if(isStandaloneSf()&&isVstTrackEngine(track&&track.synth_engine)){playNativeVstNote(track,pitch,velocity,durationMs,null,track?track.id:'global');return;}window.SonicSF.playNote(pitch,velocity,durationMs,context.currentTime,program,destNode,prevCh,track?track.synth_engine:undefined);};// D2: timeline MIDI note -> native bridge (khi bridge active) thay vì
 // SonicSF (FluidSynth WASM). Giữ setTimeout scheduling (như SonicSF cũ);
 // bridge tự render note-off sau duration. A11 (sample-accurate) sẽ thay
 // setTimeout bằng sampleOffset đẩy thẳng vào SHM.
@@ -1778,9 +1739,9 @@ if(bridgeStopRetryTimerRef.current){clearTimeout(bridgeStopRetryTimerRef.current
 // để React render set (setIsPlaying(true) sau) thì note-on delay=0 của
 // loop restart (rAF callback → React commit trễ hơn setTimeout 0) bị drop
 // → loop pass 2+ câm. Set NGAY tại scheduler.
-isPlayingRef.current=true;// ⚠️ FIX: đồng bộ mastering + Carla status NGAY khi play — MIDI item phải
-// qua mastering FX (khi bật) và qua Carla bridge (khi VSTi loaded).
-try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(e){}refreshCarlaStatus();const allPlayTracks=activeTracksRef.current&&activeTracksRef.current.length?activeTracksRef.current:activeTracks;// Capture items signature at schedule time — updatePlayhead so sánh với
+isPlayingRef.current=true;// ⚠️ FIX: đồng bộ mastering NGAY khi play — MIDI item phải qua mastering
+// FX (khi bật).
+try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(e){}const allPlayTracks=activeTracksRef.current&&activeTracksRef.current.length?activeTracksRef.current:activeTracks;// Capture items signature at schedule time — updatePlayhead so sánh với
 // signature này để phát hiện items đổi vị trí giữa lúc play (re-schedule).
 scheduledItemsSigRef.current=buildItemsSignature(allPlayTracks,sessionTabs);console.log('[Play] offset='+offsetTime+' tracks='+allPlayTracks.length+' masterBus='+!!masterBus+' dest='+(context.destination?'ok':'MISSING')+' projectEnd='+(projectEndRef.current||0).toFixed(2));const hasSolo=allPlayTracks.some(t=>t.solo);allPlayTracks.forEach(track=>{const isPlayable=hasSolo?track.solo:!track.muted;if(!isPlayable)return;const gainNode=getOrCreateTrackNode(track,context);// Realtime VST FX per-track (SHM bridge): mọi luồng track qua bridge —
 // session/worklet cho TỪNG path có âm (audio-clips + MIDI/SF); splice
@@ -1790,23 +1751,15 @@ try{const rtPaths=fxRtTrackPaths(track);if(rtPaths.indexOf('audio')>=0)fxRtTrack
 // → first play sau double-click vào SECTION-TAB bị bypass. Re-apply
 // routeBypassFor(track) mỗi lần schedule sẽ hết chu kỳ "stop+play mới đúng".
 const playNode=activeTrackNodesRef.current[track.id];if(playNode&&playNode.route&&playNode.route.routeGain){const rb=routeBypassFor(track);playNode.route.routeGain.gain.value=rb?0:1;playNode.route.dryGain.gain.value=rb?1:0;console.log('[Bypass] reapply track',track.id,'contentType='+(routeBypassFor._lastType?'midi':'audio'),'bypass='+rb,'→ routeGain='+playNode.route.routeGain.gain.value+'/dryGain='+playNode.route.dryGain.gain.value);}console.log('[Play] track',track.id,track.name,'node ok:',!!(gainNode&&pannerNode),'muted:',track.muted);const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];clips.forEach(clip=>{if(!clip.buffer)return;const source=context.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(gainNode);const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(offsetTime<clipStart){const delay=clipStart-offsetTime;source.start(context.currentTime+delay,0);activeSourcesRef.current.push(source);}else if(offsetTime<clipEnd){const playOffset=offsetTime-clipStart;source.start(context.currentTime,playOffset*(clip.speed||1.0));activeSourcesRef.current.push(source);}});// MIDI items playback
-const midiItems=track.midiItems||[];const routeCarla=shouldRouteCarla(track.synth_engine);const nativeSf=isStandaloneSf()&&!routeCarla&&isSfTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const nativeVst=isStandaloneSf()&&!routeCarla&&isVstTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if((track.type==='MIDI'||midiItems.length>0)&&(window.SonicSF||routeCarla||nativeSf||nativeVst)){if(nativeSf||nativeVst){scheduleNativeTrack(track,offsetTime,context,gainNode,bpm,{playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});}else{// Preview cache: capture the soundfont (pre track-FX) for fast offline export
+const midiItems=track.midiItems||[];const nativeSf=isStandaloneSf()&&isSfTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const nativeVst=isStandaloneSf()&&isVstTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if((track.type==='MIDI'||midiItems.length>0)&&(window.SonicSF||nativeSf||nativeVst)){if(nativeSf||nativeVst){scheduleNativeTrack(track,offsetTime,context,gainNode,bpm,{playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});}else{// Preview cache: capture the soundfont (pre track-FX) for fast offline export
 ensureMidiCapture(track,activeTrackNodesRef.current[track.id]);var trkCh=assignTrackMidiChannel(track,allPlayTracks);// Ensure instrument is loaded in FluidSynth
 if(window.SonicSF&&track.synth_engine&&track.synth_engine.type==='soundfont'&&track.synth_engine.soundfont_id){window.SonicSF.selectInstrument(trkCh,track.synth_engine.soundfont_bank||0,track.synth_engine.soundfont_program||0,track.synth_engine.soundfont_id);}const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;midiItems.forEach(item=>{const itemEndSec=item.startTime+(item.duration||4);const notes=item.notes||[];notes.forEach(note=>{// note start/duration is in beats (for MIDI items)
 const noteStartSec=item.startTime+(note.start_beat||0)*secondsPerBeat;if(noteStartSec>=itemEndSec)return;// skip notes outside item's visual duration
-const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime<noteEndSec){const durationMs=noteDurSec*1000;const program=track._isSectionClone?track.instrumentProgram:track.instrumentProgram!==undefined?track.instrumentProgram:0;// Track VSTi + Carla local → MIDI item PHẢI play qua Carla bridge
-// (chỉ route Carla — KHÔNG play qua FluidSynth GM nữa, tránh âm
-// sai instrument chồng lên). Không có Carla → FluidSynth như cũ.
-// ⚠️ FIX: item route giống hệt keybed (không gate __carlaRunning — Carla mở
-// thủ công/cũ vẫn phải route; gate cũ làm "keybed kêu, item câm").
-const routeToCarla=!!(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoutePlayback(track.synth_engine));if(offsetTime<noteStartSec){const delay=noteStartSec-offsetTime;const startTime=context.currentTime+delay;if(!routeToCarla&&window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durationMs,startTime,program,gainNode,trkCh,track.synth_engine);}// MIDI items → Carla bridge (track VSTi + Carla local): phát VSTi
-// realtime — yêu cầu: MIDI item PHẢI play qua Carla khi VSTi loaded.
-if(routeToCarla)scheduleCarlaNote(track.synth_engine,trkCh,note.pitch||60,note.velocity||0.8,startTime,durationMs);// Trigger VU meter flash when the note starts playing
+const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime<noteEndSec){const durationMs=noteDurSec*1000;const program=track._isSectionClone?track.instrumentProgram:track.instrumentProgram!==undefined?track.instrumentProgram:0;if(offsetTime<noteStartSec){const delay=noteStartSec-offsetTime;const startTime=context.currentTime+delay;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durationMs,startTime,program,gainNode,trkCh,track.synth_engine);}// Trigger VU meter flash when the note starts playing
 setTimeout(()=>{// ⚠️ Guard: stop → setTimeout sót không được fire (VU nhảy
 // sau khi âm đã dừng — user bug 05:45).
 if(!isPlayingRef.current)return;if(window.triggerMidiVuActivity){// VU key theo CONTEXT (tách MAIN vs SECTION — user 07:20)
-window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}},delay*1000);}else{const playOffset=offsetTime-noteStartSec;const remainingDurMs=(noteEndSec-offsetTime)*1000;if(!routeToCarla&&window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,gainNode,trkCh,track.synth_engine);}// MIDI items → Carla bridge (track VSTi + Carla local)
-if(routeToCarla)scheduleCarlaNote(track.synth_engine,trkCh,note.pitch||60,note.velocity||0.8,context.currentTime,remainingDurMs);// Trigger VU meter flash instantly
+window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}},delay*1000);}else{const playOffset=offsetTime-noteStartSec;const remainingDurMs=(noteEndSec-offsetTime)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,gainNode,trkCh,track.synth_engine);}// Trigger VU meter flash instantly
 if(window.triggerMidiVuActivity){window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}}}});});}}// If track has instrumentId set but no MIDI items, create scheduled oscillators
 if(track.instrumentId&&midiItems.length===0&&track.buffer){// Play audio normally (the buffer has the audio data)
 // This block is intentionally empty - audio clips already play above
@@ -1817,11 +1770,9 @@ const sections=track.sections||[];if(activeTab==='main'&&sections.length>0){cons
 const subNodeObj=activeTrackNodesRef.current[track.id+'_sub_'+subTrack.id];if(subNodeObj&&subNodeObj.route&&subNodeObj.route.routeGain){const srb=routeBypassFor(subTrack);subNodeObj.route.routeGain.gain.value=srb?0:1;subNodeObj.route.dryGain.gain.value=srb?1:0;}// 1. Play clips in subTrack
 const subClips=subTrack.clips||[];subClips.forEach(clip=>{if(!clip.buffer)return;const clipStartLocal=clip.startTime||0;const clipDurLocal=clip.buffer.duration/(clip.speed||1.0);const clipStartMain=secStart+clipStartLocal;const clipEndMain=clipStartMain+clipDurLocal;// Only play within the bounds of [secStart, secEnd]
 const activeStart=Math.max(clipStartMain,secStart);const activeEnd=Math.min(clipEndMain,secEnd);if(activeStart<activeEnd&&offsetTime<activeEnd){const source=context.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(subNode);if(offsetTime<activeStart){const delay=activeStart-offsetTime;const playOffset=activeStart-clipStartMain;const playDuration=activeEnd-activeStart;source.start(context.currentTime+delay,playOffset*(clip.speed||1.0),playDuration);activeSourcesRef.current.push(source);}else{const playOffset=offsetTime-clipStartMain;const playDuration=activeEnd-offsetTime;source.start(context.currentTime,playOffset*(clip.speed||1.0),playDuration);activeSourcesRef.current.push(source);}}});// 2. Play MIDI items in subTrack
-const subMidiItems=subTrack.midiItems||[];const subRouteCarla=shouldRouteCarla(subTrack.synth_engine);const subNativeSf=isStandaloneSf()&&!subRouteCarla&&isSfTrackEngine(subTrack.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const subNativeVst=isStandaloneSf()&&!subRouteCarla&&isVstTrackEngine(subTrack.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if(subMidiItems.length>0&&(window.SonicSF||subRouteCarla||subNativeSf||subNativeVst)){if(subNativeSf||subNativeVst){scheduleNativeTrack(subTrack,offsetTime,context,subNode,bpm,{baseOffsetSec:secStart,limitSec:secEnd,playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});return;// native render → audio buffer (không qua WASM/Carla per-note)
+const subMidiItems=subTrack.midiItems||[];const subNativeSf=isStandaloneSf()&&isSfTrackEngine(subTrack.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const subNativeVst=isStandaloneSf()&&isVstTrackEngine(subTrack.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if(subMidiItems.length>0&&(window.SonicSF||subNativeSf||subNativeVst)){if(subNativeSf||subNativeVst){scheduleNativeTrack(subTrack,offsetTime,context,subNode,bpm,{baseOffsetSec:secStart,limitSec:secEnd,playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});return;// native render → audio buffer (không qua WASM per-note)
 }subMidiItems.forEach(item=>{const notes=item.notes||[];notes.forEach(note=>{const noteStartSecLocal=item.startTime+(note.start_beat||0)*secondsPerBeat;const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteStartMain=secStart+noteStartSecLocal;const noteEndMain=noteStartMain+noteDurSec;// Only play if the note starts inside the Section item bounds and hasn't finished yet
-if(noteStartMain>=secStart&&noteStartMain<secEnd&&offsetTime<noteEndMain){const notePlayEndMain=Math.min(noteEndMain,secEnd);const program=subTrack.instrumentProgram;var subCh=assignTrackMidiChannel(subTrack,secTracks);// MIDI item trong SECTION → Carla bridge khi VSTi loaded
-// (chỉ route Carla — không play FluidSynth GM sai âm)
-const subRouteCarla=!!(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoutePlayback(subTrack.synth_engine));if(offsetTime<noteStartMain){const delay=noteStartMain-offsetTime;const startTime=context.currentTime+delay;const playDurMs=(notePlayEndMain-noteStartMain)*1000;if(!subRouteCarla&&window.SonicSF){scheduleMidiNoteDispatch(subTrack,note.pitch||60,note.velocity||0.8,playDurMs,startTime,program,subNode,subCh,subTrack.synth_engine);}if(subRouteCarla)scheduleCarlaNote(subTrack.synth_engine,subCh,note.pitch||60,note.velocity||0.8,startTime,playDurMs);// Trigger VU meter flash đúng nhịp (cả subTrack — VU
+if(noteStartMain>=secStart&&noteStartMain<secEnd&&offsetTime<noteEndMain){const notePlayEndMain=Math.min(noteEndMain,secEnd);const program=subTrack.instrumentProgram;var subCh=assignTrackMidiChannel(subTrack,secTracks);if(offsetTime<noteStartMain){const delay=noteStartMain-offsetTime;const startTime=context.currentTime+delay;const playDurMs=(notePlayEndMain-noteStartMain)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(subTrack,note.pitch||60,note.velocity||0.8,playDurMs,startTime,program,subNode,subCh,subTrack.synth_engine);}// Trigger VU meter flash đúng nhịp (cả subTrack — VU
 // section tab + parent track — VU MAIN): MIDI section đi
 // SF → masterBus.input (không qua sub-node analyser) →
 // VU track chỉ nhảy qua midiVuActivity. (Bị mất khi
@@ -1829,31 +1780,27 @@ const subRouteCarla=!!(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRouteP
 setTimeout(()=>{// ⚠️ Guard: stop → setTimeout sót không được fire (VU
 // nhảy sau khi âm đã dừng — user bug 05:45).
 if(!isPlayingRef.current)return;if(window.triggerMidiVuActivity){// VU key theo CONTEXT (tách MAIN vs SECTION — 07:20)
-window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+subTrack.id,note.velocity||0.8);window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}},delay*1000);}else{const remainingDurMs=(notePlayEndMain-offsetTime)*1000;if(!subRouteCarla&&window.SonicSF){scheduleMidiNoteDispatch(subTrack,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,subNode,subCh,subTrack.synth_engine);}if(subRouteCarla)scheduleCarlaNote(subTrack.synth_engine,subCh,note.pitch||60,note.velocity||0.8,context.currentTime,remainingDurMs);if(window.triggerMidiVuActivity){// VU key theo CONTEXT (tách MAIN vs SECTION — 07:20)
+window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+subTrack.id,note.velocity||0.8);window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}},delay*1000);}else{const remainingDurMs=(notePlayEndMain-offsetTime)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(subTrack,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,subNode,subCh,subTrack.synth_engine);}if(window.triggerMidiVuActivity){// VU key theo CONTEXT (tách MAIN vs SECTION — 07:20)
 window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+subTrack.id,note.velocity||0.8);window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}}}});});}});});}});updateSfRouting();};// Solo playback for Local Selection Loop (LOOP_MAKER.md §2.2)
 const startLocalTrackPlayback=(trackId,offsetTime)=>{const context=getAudioContext();// V12: parity với startTrackPlayback — loop restart (solo/local) sau
 // stopAllPlayback(): hủy STOP#2 + báo PLAY (nếu không C++ transportStopped
 // giữ true → mọi note-on bị drop → solo/local loop pass 2+ câm) + set
 // isPlayingRef NGAY (guardPlay race — xem startTrackPlayback).
-if(window.NativeBridgeService&&window.NativeBridgeService.isBridgeConnected){if(bridgeStopRetryTimerRef.current){clearTimeout(bridgeStopRetryTimerRef.current);bridgeStopRetryTimerRef.current=null;}try{window.NativeBridgeService.transport('play');}catch(e){}}isPlayingRef.current=true;try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(e){}refreshCarlaStatus();const track=tracks.find(t=>t.id===trackId);if(!track)return;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];// Get or create persistent gain & panner for real-time control
+if(window.NativeBridgeService&&window.NativeBridgeService.isBridgeConnected){if(bridgeStopRetryTimerRef.current){clearTimeout(bridgeStopRetryTimerRef.current);bridgeStopRetryTimerRef.current=null;}try{window.NativeBridgeService.transport('play');}catch(e){}}isPlayingRef.current=true;try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(e){}const track=tracks.find(t=>t.id===trackId);if(!track)return;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];// Get or create persistent gain & panner for real-time control
 const gainNode=getOrCreateTrackNode(track,context);const pannerNode=activeTrackNodesRef.current[track.id].pannerNode;clips.forEach(clip=>{if(!clip.buffer)return;const source=context.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(gainNode);// NOTE: do NOT connect gainNode → pannerNode directly here — the track
 // node already wires gainNode → fxEntry → [FX modules] → fxLegacyIn →
 // chorus/reverb → pannerNode. A direct tap would BYPASS the FX Rack
 // chain for audio clips (double path: with + without FX).
 const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(offsetTime<clipStart){const delay=clipStart-offsetTime;source.start(context.currentTime+delay,0);activeSourcesRef.current.push(source);}else if(offsetTime<clipEnd){const playOffset=offsetTime-clipStart;source.start(context.currentTime,playOffset*(clip.speed||1.0));activeSourcesRef.current.push(source);}});// MIDI items playback
-const midiItems=track.midiItems||[];const routeCarla=shouldRouteCarla(track.synth_engine);const nativeSf=isStandaloneSf()&&!routeCarla&&isSfTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const nativeVst=isStandaloneSf()&&!routeCarla&&isVstTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if((track.type==='MIDI'||midiItems.length>0)&&(window.SonicSF||routeCarla||nativeSf||nativeVst)){if(nativeSf||nativeVst){scheduleNativeTrack(track,offsetTime,context,gainNode,bpm,{playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});return;// native render → audio buffer (không qua WASM/Carla per-note)
-}var lcCh=assignTrackMidiChannel(track,tracks);const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;midiItems.forEach(item=>{const notes=item.notes||[];notes.forEach(note=>{const noteStartSec=item.startTime+(note.start_beat||0)*secondsPerBeat;const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime<noteEndSec){const durationMs=noteDurSec*1000;const program=track.instrumentProgram!==undefined?track.instrumentProgram:0;// MIDI item → Carla bridge khi VSTi loaded (chỉ route Carla — không
-// play FluidSynth GM sai âm chồng lên)
-const routeToCarla=!!(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoutePlayback(track.synth_engine));if(offsetTime<noteStartSec){const delay=noteStartSec-offsetTime;const startTime=context.currentTime+delay;if(!routeToCarla&&window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durationMs,startTime,program,gainNode,lcCh,track.synth_engine);}// MIDI items → Carla bridge (track VSTi + Carla local)
-if(routeToCarla)scheduleCarlaNote(track.synth_engine,lcCh,note.pitch||60,note.velocity||0.8,startTime,durationMs);}else{const remainingDurMs=(noteEndSec-offsetTime)*1000;if(!routeToCarla&&window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,gainNode,lcCh,track.synth_engine);}// MIDI items → Carla bridge (track VSTi + Carla local)
-if(routeToCarla)scheduleCarlaNote(track.synth_engine,lcCh,note.pitch||60,note.velocity||0.8,context.currentTime,remainingDurMs);}}});});}};const schedulePianoRollMidi=(st,offsetSeconds,notesOverride)=>{if(st.type!=='PIANO_ROLL')return;const context=getAudioContext();_nativePlayEpoch++;// new play — vô hiệu doHardStop đang fade
+const midiItems=track.midiItems||[];const nativeSf=isStandaloneSf()&&isSfTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const nativeVst=isStandaloneSf()&&isVstTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if((track.type==='MIDI'||midiItems.length>0)&&(window.SonicSF||nativeSf||nativeVst)){if(nativeSf||nativeVst){scheduleNativeTrack(track,offsetTime,context,gainNode,bpm,{playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});return;// native render → audio buffer (không qua WASM per-note)
+}var lcCh=assignTrackMidiChannel(track,tracks);const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;midiItems.forEach(item=>{const notes=item.notes||[];notes.forEach(note=>{const noteStartSec=item.startTime+(note.start_beat||0)*secondsPerBeat;const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime<noteEndSec){const durationMs=noteDurSec*1000;const program=track.instrumentProgram!==undefined?track.instrumentProgram:0;if(offsetTime<noteStartSec){const delay=noteStartSec-offsetTime;const startTime=context.currentTime+delay;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durationMs,startTime,program,gainNode,lcCh,track.synth_engine);}}else{const remainingDurMs=(noteEndSec-offsetTime)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,gainNode,lcCh,track.synth_engine);}}}});});}};const schedulePianoRollMidi=(st,offsetSeconds,notesOverride)=>{if(st.type!=='PIANO_ROLL')return;const context=getAudioContext();_nativePlayEpoch++;// new play — vô hiệu doHardStop đang fade
 restorePendingFadeSession();// V17: huy fade dang treo — replay khong bi dip gain
 // V10: piano roll loop restart cũng gọi stopAllPlayback() trước (STOP#1 →
 // bridge transportStopped=true) → mọi note-on bị drop nếu không PLAY lại.
 // Hủy STOP#2 (150ms) + báo PLAY để bridge nhận note mới (loop liên tục).
 if(window.NativeBridgeService&&window.NativeBridgeService.isBridgeConnected){if(bridgeStopRetryTimerRef.current){clearTimeout(bridgeStopRetryTimerRef.current);bridgeStopRetryTimerRef.current=null;}try{window.NativeBridgeService.transport('play');}catch(e){}}// V12: guardPlay race tương tự startTrackPlayback — set NGAY để note-on
 // delay=0 của sub-tab loop restart không bị drop.
-isPlayingRef.current=true;try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(e){}refreshCarlaStatus();const midiNotes=notesOverride||st.notes||[];const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;const startWallTime=context.currentTime;const track=activeTracksRef.current?activeTracksRef.current.find(t=>t.id===st.trackId):null;if(!track){console.warn('[Play] Piano Roll track not found:',st.trackId);return;}const destNode=getOrCreateTrackNode(track,context);// Instrument context resolve từ TRACK live (nguồn duy nhất) — track "đã
+isPlayingRef.current=true;try{if(window.__ensureMasteringRouting)window.__ensureMasteringRouting();}catch(e){}const midiNotes=notesOverride||st.notes||[];const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;const startWallTime=context.currentTime;const track=activeTracksRef.current?activeTracksRef.current.find(t=>t.id===st.trackId):null;if(!track){console.warn('[Play] Piano Roll track not found:',st.trackId);return;}const destNode=getOrCreateTrackNode(track,context);// Instrument context resolve từ TRACK live (nguồn duy nhất) — track "đã
 // loaded instrument" (instrumentProgram GM hoặc synth_engine soundfont)
 // phải chơi ĐÚNG instrument đó. ensureSonicInstrument select channel đúng
 // trước khi notes bắn (fire-and-forget — playNote tự load+retry nếu SF
@@ -1862,14 +1809,9 @@ const instCtx=resolveTrackInstrumentCtx(track,activeTracksRef.current||[]);const
 // items placed later in the project play `item.startTime` seconds in the
 // future (silence when pressing play). Ghost notes are already relative to
 // the item window, so no absolute-session offset is applied anywhere here.
-const routeCarla=shouldRouteCarla(synthEngine);if(isStandaloneSf()&&!routeCarla&&(isSfTrackEngine(synthEngine)||isVstTrackEngine(synthEngine))&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){scheduleNativeTrack(track,offsetSeconds,context,destNode,bpm,{notesOverride:midiNotes,playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});return;// native render cả tab → audio buffer (không per-note WASM/Carla)
-}midiNotes.forEach(note=>{const noteOnBeat=note.start_beat||0;const noteDurBeat=note.duration_beats||1;const noteStartSec=noteOnBeat*secondsPerBeat;const noteDurSec=noteDurBeat*secondsPerBeat;if(noteStartSec+noteDurSec>offsetSeconds){const effectiveStart=Math.max(0,noteStartSec-offsetSeconds);const effectiveDur=noteDurSec-Math.max(0,offsetSeconds-noteStartSec);const scheduledTime=startWallTime+effectiveStart;const durMs=effectiveDur*1000;// Track VSTi + Carla local → note PHẢI play qua Carla bridge (chỉ route
-// Carla — không play FluidSynth GM sai âm chồng lên)
-const routeToCarla=!!(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoutePlayback(synthEngine));if(!routeToCarla&&window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durMs,scheduledTime,instrumentProgram,destNode,mainCh,synthEngine);}// MIDI items → Carla (track VSTi + Carla local): phát VSTi realtime
-// (schedule theo audio clock bằng setTimeout — preview, timing gần đúng).
-if(routeToCarla){const carlaDelay=Math.max(0,(scheduledTime-context.currentTime)*1000);const carlaVel=Math.round((note.velocity||0.8)*127);const carlaCh=synthEngine&&synthEngine.midi_channel!==undefined?synthEngine.midi_channel:mainCh;const carlaPitch=note.pitch||60;setTimeout(function(){window.SonicCarlaMidi.noteOn(carlaCh,carlaPitch,carlaVel);},carlaDelay);scheduleNoteOff('C:'+carlaCh+':'+carlaPitch,function(){window.SonicCarlaMidi.noteOff(carlaCh,carlaPitch);},carlaDelay,durMs);}}});// Play ghost notes from active tracks
-var ghostLayers=st.ghostPlayLayers||[];ghostLayers.forEach(function(layer){var ghostTrack=allTracks.find(function(t){return t.id===layer.trackId;});var ghostProg=layer.instrumentProgram!==undefined?layer.instrumentProgram:ghostTrack?ghostTrack.instrumentProgram:undefined;var ghostSynth=layer.synthEngine||(ghostTrack?ghostTrack.synth_engine:undefined);if(ghostProg===undefined&&!ghostSynth)return;var ghostDest=getOrCreateTrackNode(ghostTrack,context);var ghostCh=ghostTrack?assignTrackMidiChannel(ghostTrack,allTracks):0;layer.notes.forEach(function(note){var beat=note.start_beat||0;var dur=note.duration_beats||1;var startSec=beat*secondsPerBeat;var durSec=dur*secondsPerBeat;if(startSec+durSec>offsetSeconds){var effStart=Math.max(0,startSec-offsetSeconds);var effDur=durSec-Math.max(0,offsetSeconds-startSec);var schedTime=startWallTime+effStart;var durMs=effDur*1000;// Ghost note → Carla bridge khi ghost track VSTi (chỉ route Carla)
-var gRouteCarla=!!(window.SonicCarlaMidi&&window.SonicCarlaMidi.shouldRoutePlayback(ghostSynth));if(!gRouteCarla&&window.SonicSF){scheduleMidiNoteDispatch(ghostTrack,note.pitch||60,note.velocity||0.8,durMs,schedTime,ghostProg,ghostDest,ghostCh,ghostSynth);}if(gRouteCarla)scheduleCarlaNote(ghostSynth,ghostCh,note.pitch||60,note.velocity||0.8,schedTime,durMs);}});});};const handlePlayPause=()=>{console.log('[Play] click activeTab=',activeTab,'isPlaying=',isPlaying,'subPlaying=',subTabs.filter(s=>s.isPlaying).length);if(activeTab!=='main'&&!activeTab.startsWith('session_')){// Sub-tab playback transport
+if(isStandaloneSf()&&(isSfTrackEngine(synthEngine)||isVstTrackEngine(synthEngine))&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive())){scheduleNativeTrack(track,offsetSeconds,context,destNode,bpm,{notesOverride:midiNotes,playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});return;// native render cả tab → audio buffer (không per-note WASM)
+}midiNotes.forEach(note=>{const noteOnBeat=note.start_beat||0;const noteDurBeat=note.duration_beats||1;const noteStartSec=noteOnBeat*secondsPerBeat;const noteDurSec=noteDurBeat*secondsPerBeat;if(noteStartSec+noteDurSec>offsetSeconds){const effectiveStart=Math.max(0,noteStartSec-offsetSeconds);const effectiveDur=noteDurSec-Math.max(0,offsetSeconds-noteStartSec);const scheduledTime=startWallTime+effectiveStart;const durMs=effectiveDur*1000;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durMs,scheduledTime,instrumentProgram,destNode,mainCh,synthEngine);}}});// Play ghost notes from active tracks
+var ghostLayers=st.ghostPlayLayers||[];ghostLayers.forEach(function(layer){var ghostTrack=allTracks.find(function(t){return t.id===layer.trackId;});var ghostProg=layer.instrumentProgram!==undefined?layer.instrumentProgram:ghostTrack?ghostTrack.instrumentProgram:undefined;var ghostSynth=layer.synthEngine||(ghostTrack?ghostTrack.synth_engine:undefined);if(ghostProg===undefined&&!ghostSynth)return;var ghostDest=getOrCreateTrackNode(ghostTrack,context);var ghostCh=ghostTrack?assignTrackMidiChannel(ghostTrack,allTracks):0;layer.notes.forEach(function(note){var beat=note.start_beat||0;var dur=note.duration_beats||1;var startSec=beat*secondsPerBeat;var durSec=dur*secondsPerBeat;if(startSec+durSec>offsetSeconds){var effStart=Math.max(0,startSec-offsetSeconds);var effDur=durSec-Math.max(0,offsetSeconds-startSec);var schedTime=startWallTime+effStart;var durMs=effDur*1000;if(window.SonicSF){scheduleMidiNoteDispatch(ghostTrack,note.pitch||60,note.velocity||0.8,durMs,schedTime,ghostProg,ghostDest,ghostCh,ghostSynth);}}});});};const handlePlayPause=()=>{console.log('[Play] click activeTab=',activeTab,'isPlaying=',isPlaying,'subPlaying=',subTabs.filter(s=>s.isPlaying).length);if(activeTab!=='main'&&!activeTab.startsWith('session_')){// Sub-tab playback transport
 const st=subTabs.find(s=>s.id===activeTab);if(!st||!st.buffer&&st.type!=='PIANO_ROLL')return;// MAIN/SECTION đang play (ngầm — MIDI section/main còn kêu sau khi mở
 // tab): Space phải STOP trước — không được play sub-tab (user: trong
 // PIANO ROLL không phát hiện MIDI đang play → space 2 lần mới stop).
@@ -2254,7 +2196,7 @@ const ctx=getAudioContext();const elapsed=ctx.currentTime-startAudioTimeRef.curr
 // (quét 8 bars hiển thị "0 đến 8"): nhập 8 → selection tới vạch 8.
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font-bold"},"SoundFonts"),filteredInstruments.soundfonts.map((sf,i)=>/*#__PURE__*/React.createElement("button",{key:"sfd_"+i,onClick:()=>{setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setTrackInstrumentWithUndo(instrumentDropdownTrackId,"sf_"+sf.id,sf.display||sf.name||sf.id,undefined,undefined);},className:"w-full text-left px-3 py-1.5 text-xs bg-zinc-800 hover:bg-amber-800 text-zinc-200 flex items-center justify-between"},/*#__PURE__*/React.createElement("span",{className:"truncate"},sf.display||sf.name||sf.id),/*#__PURE__*/React.createElement("span",{className:"text-[10px] text-amber-400 shrink-0 ml-1"},"SF"))),filteredInstruments.vst.length>0&&/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500 px-3 py-1 mt-1 uppercase font-bold"},"VST Instruments"),filteredInstruments.vst.map((v,i)=>/*#__PURE__*/React.createElement("div",{key:"vstd_"+i,className:"flex items-stretch"},/*#__PURE__*/React.createElement("button",{onClick:()=>{setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setTrackInstrumentWithUndo(instrumentDropdownTrackId,v.id,v.name||v.id);},className:"flex-1 min-w-0 text-left px-3 py-1.5 text-xs bg-zinc-800 hover:bg-violet-800 text-zinc-200 flex items-center justify-between"},/*#__PURE__*/React.createElement("span",{className:"truncate"},v.name||v.id),/*#__PURE__*/React.createElement("span",{className:"text-[10px] text-cyan-400 shrink-0 ml-1"},v.type||"VST")))),filteredInstruments.vst.length>0&&/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500 px-3 py-1 mt-1 uppercase font-bold"},"VST Presets (.vstpreset)"),(window.SonicRuntime&&window.SonicRuntime.presets||[]).map((p,i)=>/*#__PURE__*/React.createElement("button",{key:"psd_"+i,onClick:()=>setTrackPreset(instrumentDropdownTrackId,p.id),className:"w-full text-left px-3 py-1 text-xs bg-zinc-800 hover:bg-emerald-800 text-zinc-300 flex items-center justify-between"},/*#__PURE__*/React.createElement("span",{className:"truncate"},p.name||p.id),/*#__PURE__*/React.createElement("span",{className:"text-[10px] text-emerald-400 shrink-0 ml-1"},"PRESET"))),/*#__PURE__*/React.createElement("button",{onClick:()=>{const inp=document.createElement('input');inp.type='file';inp.accept='.vstpreset,.fxp,.fxb,.dspreset';inp.onchange=()=>{const f=inp.files&&inp.files[0];if(!f)return;window.SonicAPI.uploadPreset(f).then(function(r){if(r&&r.success){if(window.SonicRuntime)window.SonicRuntime.refreshPresets();showToast('Đã upload preset: '+(r.original_name||r.name||''),'success');}else{showToast('Upload preset thất bại','error');}}).catch(function(err){showToast('Upload lỗi: '+(err.message||err),'error');});};inp.click();},className:"w-full text-left px-3 py-1 text-xs bg-zinc-800 hover:bg-teal-800 text-teal-300 border-t border-zinc-700",title:"Upload preset .vstpreset xuất từ native GUI"},"\u2B06 Upload preset (t\u1EEB native GUI...)"),!filteredInstruments.soundfonts.length&&!filteredInstruments.vst.length&&/*#__PURE__*/React.createElement("p",{className:"text-xs text-zinc-500 py-4 text-center"},"Kh\u00f4ng t\u00ecm th\u1ea5y nh\u1ea1c c\u1ee5 n\u00e0o"))));};// React onWheel is passive -> e.preventDefault() can't stop panel scroll, so the
 // ruler slips away from the cursor mid-scroll. Native capture listener (non-passive)
 // blocks scrolling whenever the wheel starts over a [data-sf-wheel] container.
-document.addEventListener('wheel',e=>{const t=e.target;if(t&&t.closest&&t.closest('[data-sf-wheel]'))e.preventDefault();},{passive:false,capture:true});const root=ReactDOM.createRoot(document.getElementById('root'));root.render(/*#__PURE__*/React.createElement(App,null));setTimeout(()=>lucide.createIcons(),300);
+document.addEventListener('wheel',e=>{const t=e.target;if(t&&t.closest&&t.closest('[data-sf-wheel]'))e.preventDefault();},{passive:false,capture:true});const root=ReactDOM.createRoot(document.getElementById('root'));root.render(/*#__PURE__*/React.createElement(App,null));setTimeout(()=>lucide.createIcons(),300);
\ No newline at end of file
diff --git a/app/static/js/services/api.js b/app/static/js/services/api.js
index 025ae1b..7cc894b 100644
--- a/app/static/js/services/api.js
+++ b/app/static/js/services/api.js
@@ -73,18 +73,6 @@ window.API_BASE_URL = (window.API_BASE_URL || window.location.origin).replace(/\
         // Runtime capabilities — frontend gọi lúc boot để biết môi trường
         // (desktop Windows / docker headless) và bật/tắt tính năng
         getCapabilities: () => apiRequest('/api/v1/system/capabilities', { method: 'GET' }),
-        // Định vị Carla.exe (bản portable zip không cài đặt/PATH) — lưu config
-        setCarlaPath: (path) => apiRequest('/api/v1/system/carla-path', { method: 'POST', body: JSON.stringify({ carla_path: path }) }),
-        // Mở native GUI VSTi trong Carla (chỉ khi runtime=desktop + có Carla local)
-        openInCarla: (pluginName, pluginPath) => apiRequest('/api/v1/plugins/open-in-carla', { method: 'POST', body: JSON.stringify({ plugin_name: pluginName, plugin_path: pluginPath }) }),
-        // Unload Carla bridge: tắt mọi note đang ngân + terminate tiến trình Carla
-        // do app spawn (gọi khi track chuyển từ VSTi sang instrument soundfont)
-        stopCarla: () => apiRequest('/api/v1/plugins/carla-stop', { method: 'POST', body: JSON.stringify({}) }),
-        // Kiểm tra Carla còn sống không (app-spawn) + cổng OSC — quyết định
-        // route MIDI item exclusive qua Carla hay fallback FluidSynth
-        carlaStatus: () => apiRequest('/api/v1/plugins/carla-status', { method: 'GET' }),
-        // Gửi MIDI note (track ARM → Carla OSC) để preview VSTi realtime
-        carlaMidi: (payload) => apiRequest('/api/v1/plugins/carla-midi', { method: 'POST', body: JSON.stringify(payload) }),
         // Quick-render preview VSTi (âm thật = âm export, cùng code path)
         previewInstrument: (payload) => apiRequest('/api/v1/plugins/preview', { method: 'POST', body: JSON.stringify(payload) }),
         // Render MIDI notes → WAV bằng VSTi (pedalboard, âm thật) — trả file_id
@@ -99,10 +87,7 @@ window.API_BASE_URL = (window.API_BASE_URL || window.location.origin).replace(/\
         // Mở native GUI của VST FX (mastering chain / FX rack) qua bridge
         openFxGui: (payload) => apiRequest('/api/v1/plugins/fx-gui', { method: 'POST', body: JSON.stringify(payload) }),
         soundfontRender: (payload) => apiRequest('/api/v1/plugins/soundfont-render', { method: 'POST', body: JSON.stringify(payload) }),
-        // Phát dãy MIDI notes realtime qua Carla bridge (OSC) — preview khi
-        // pedalboard không render được plugin (VD VST2)
-        carlaPlayNotes: (payload) => apiRequest('/api/v1/plugins/carla-play-notes', { method: 'POST', body: JSON.stringify(payload) }),
-        // Thư viện preset VST3 (.vstpreset) — cầu nối Carla → pedalboard
+        // Thư viện preset VST3 (.vstpreset) — cầu nối preset → pedalboard
         listPresets: () => apiRequest('/api/v1/presets', { method: 'GET' }),
         uploadPreset: (file, pluginHint) => {
             const fd = new FormData();
diff --git a/app/static/js/services/runtime.js b/app/static/js/services/runtime.js
index 54ccc63..c8d05a0 100644
--- a/app/static/js/services/runtime.js
+++ b/app/static/js/services/runtime.js
@@ -1,10 +1,8 @@
 // SonicForge Runtime service — phát hiện môi trường chạy (desktop Windows /
 // docker headless) qua /api/v1/system/capabilities, bật/tắt tính năng theo đó.
 //   - data-runtime trên <html>: "desktop" | "headless"
-//   - data-carla="1": có Carla local (hiện nút "Mở trong Carla")
-//   - Phần tử có thuộc tính data-carla-only sẽ bị ẩn khi không có Carla local.
 //   - Thư viện preset (.vstpreset) cache trong SonicRuntime.presets — dùng cho
-//     dropdown gán preset vào track (Carla → pedalboard bridge).
+//     dropdown gán preset vào track (preset → pedalboard bridge).
 window.SonicRuntime = window.SonicRuntime || { loaded: false, capabilities: null, presets: null };
 
 (function () {
@@ -22,19 +20,13 @@ window.SonicRuntime = window.SonicRuntime || { loaded: false, capabilities: null
                 window.SonicRuntime.loaded = true;
                 // environment: "docker" | "standalone" — quyết định luồng âm
                 // instrument: docker → FluidSynthWASM (client), standalone →
-                // native (backend pyfluidsynth / Carla). Không phải docker =
-                // standalone (Windows/Linux/macOS chạy trực tiếp trên OS).
+                // native (backend pyfluidsynth / native_bridge). Không phải
+                // docker = standalone (Windows/Linux/macOS chạy trực tiếp trên OS).
                 window.SonicRuntime.environment = c.environment || (c.docker ? 'docker' : 'standalone');
                 var html = document.documentElement;
                 html.dataset.runtime = c.runtime || 'unknown';
                 html.dataset.platform = c.platform || '';
                 html.dataset.environment = window.SonicRuntime.environment;
-                html.dataset.carla = (c.features && c.features.carla_local) ? '1' : '0';
-                if (c.features && c.features.carla_local === false) {
-                    document.querySelectorAll('[data-carla-only]').forEach(function (el) {
-                        el.style.display = 'none';
-                    });
-                }
                 // Cache sẵn danh sách preset (static, ít thay đổi)
                 listPresets().catch(function () {});
                 return c;
@@ -66,54 +58,3 @@ window.SonicRuntime = window.SonicRuntime || { loaded: false, capabilities: null
         load();
     }
 })();
-
-// ── SonicCarlaMidi: cầu nối MIDI từ track ARM → Carla (OSC /Carla/0/note_*) ──
-// Khi track dùng VSTi (synth_engine.type chứa 'vst') + được ARM + máy có Carla
-// local → phím bấm trên piano roll / keybed được gửi tới Carla để phát realtime
-// (Carla standalone bật OSC UDP mặc định cổng 22752).
-window.SonicCarlaMidi = window.SonicCarlaMidi || {
-    shouldRoute: function (synthEngine, isArmed) {
-        // Carla bridge removed - all instruments hosted by Native Bridge.
-        return false;
-    },
-    // Playback MIDI items: route khi track VSTi + Carla local (không cần ARM —
-    // user đã chủ động bấm Play trên item đó).
-    shouldRoutePlayback: function (synthEngine) {
-        // Carla bridge removed - all instruments hosted by Native Bridge.
-        return false;
-    },
-    noteOn: function (channel, note, velocity) {
-        if (!window.SonicAPI || !window.SonicAPI.carlaMidi) return;
-        window.SonicAPI.carlaMidi({ event: 'note_on', note: note, velocity: velocity || 100, channel: channel || 0 }).catch(function () {});
-    },
-    noteOff: function (channel, note) {
-        if (!window.SonicAPI || !window.SonicAPI.carlaMidi) return;
-        window.SonicAPI.carlaMidi({ event: 'note_off', note: note, channel: channel || 0 }).catch(function () {});
-    },
-    // Bật note rồi tự tắt sau durMs (preview ngắn)
-    playNote: function (channel, note, velocity, durMs) {
-        this.noteOn(channel, note, velocity);
-        var self = this;
-        setTimeout(function () { self.noteOff(channel, note); }, (durMs || 300) + 50);
-    },
-    // Tắt mọi note đang ngân trong Carla (note_off toàn pitch — dùng khi stop)
-    allNotesOff: function () {
-        if (!window.SonicAPI || !window.SonicAPI.carlaMidi) return;
-        for (var ch = 0; ch < 16; ch++) {
-            for (var n = 0; n < 128; n++) {
-                window.SonicAPI.carlaMidi({ event: 'note_off', note: n, channel: ch }).catch(function () {});
-            }
-        }
-    },
-    // Unload Carla bridge: tắt âm + terminate tiến trình Carla (app spawn).
-    // Gọi khi track chuyển từ VSTi → instrument soundfont để âm KHÔNG còn
-    // play qua Carla bridge nữa.
-    stopBridge: function () {
-        var self = this;
-        try { self.allNotesOff(); } catch (e) {}
-        if (window.SonicAPI && window.SonicAPI.stopCarla) {
-            return window.SonicAPI.stopCarla().catch(function () {});
-        }
-        return Promise.resolve();
-    }
-};
diff --git a/app/static/js/services/unifiedMidiRouter.js b/app/static/js/services/unifiedMidiRouter.js
index 2381697..46342c1 100644
--- a/app/static/js/services/unifiedMidiRouter.js
+++ b/app/static/js/services/unifiedMidiRouter.js
@@ -1,7 +1,7 @@
 // app/static/js/services/unifiedMidiRouter.js
 // Single MIDI entry point for Web MIDI keyboard + timeline playback.
 // bridge connected -> NativeBridgeService.dispatchMidiEvent (Rust SHM -> C++ bridge)
-// bridge down      -> onFallback callback (app.jsx wires SonicSF/Carla path).
+// bridge down      -> onFallback callback (app.jsx wires SonicSF/native path).
 (function () {
   var MELODIC_CHANNELS = [0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14]; // skip 9 (percussion); 15 reserved for Media Explorer preview
 
diff --git a/native_bridge/tests/g2_bridge_smoke.py b/native_bridge/tests/g2_bridge_smoke.py
index 85ca940..62399ec 100644
--- a/native_bridge/tests/g2_bridge_smoke.py
+++ b/native_bridge/tests/g2_bridge_smoke.py
@@ -102,7 +102,7 @@ try:
         logf.flush()
         print("bridge out:", open(logpath, encoding="utf-8").read()[-1500:])
 
-    # VST3 (native hosting, no Carla): mda-vst3 bundle from SDK build
+    # VST3 (native hosting): mda-vst3 bundle from SDK build
     VST3 = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "build", "VST3", "Release", "mda-vst3.vst3"))
     load_instrument(0, VST3, ch=2)
     # wait until bridge reports the load (poll log), up to 10s
diff --git a/src-tauri/ui/index.html b/src-tauri/ui/index.html
index 9bbe339..1454176 100644
--- a/src-tauri/ui/index.html
+++ b/src-tauri/ui/index.html
@@ -15,7 +15,7 @@
     // Frontend host (Tauri asset page). KHÔNG location.href redirect: chuyển
     // sang http://127.0.0.1:8000 sẽ rời Tauri context -> mất window.__TAURI__
     // -> NativeBridgeService vô hiệu (bridge-audio/load_instrument không dùng
-    // được; MIDI rơi về fallback WASM/Carla). Thay vào đó: quét port engine
+    // được; MIDI rơi về fallback WASM/native). Thay vào đó: quét port engine
     // (8000-8010), nạp toàn bộ UI engine qua document.write trên CÙNG document
     // (origin tauri:// giữ nguyên -> __TAURI__ sống), base href + API_BASE_URL
     // trỏ engine HTTP (CORS * đã bật).
diff --git a/tests/test_plugin_api.py b/tests/test_plugin_api.py
index 7034dbb..a4dc632 100644
--- a/tests/test_plugin_api.py
+++ b/tests/test_plugin_api.py
@@ -190,7 +190,7 @@ class TestPluginAPI:
             assert g.json()["plugin_dirs"] == [d1]
 
 class TestMidiRenderVSTi:
-    """Preview/export MIDI notes với âm VSTi — feature Carla bridge → pedalboard."""
+    """Preview/export MIDI notes với âm VSTi — feature preset bridge → pedalboard."""
 
     def test_midi_render_requires_auth(self):
         client.cookies.clear()  # TestClient giữ cookie login từ test trước
@@ -216,29 +216,6 @@ class TestMidiRenderVSTi:
         assert resp.status_code == 404
         assert "VSTi" in resp.json()["detail"]
 
-    def test_carla_play_notes_requires_auth(self):
-        client.cookies.clear()  # TestClient giữ cookie login từ test trước
-        resp = client.post("/api/v1/plugins/carla-play-notes",
-                           json={"notes": [{"pitch": 60}], "bpm": 120})
-        assert resp.status_code == 401
-
-    def test_carla_play_notes_no_notes(self):
-        token = get_admin_token()
-        if not token:
-            pytest.skip("Cannot get admin token")
-        resp = client.post("/api/v1/plugins/carla-play-notes", headers={"Authorization": f"Bearer {token}"},
-                           json={"notes": [], "bpm": 120})
-        assert resp.status_code == 400
-
-    def test_carla_play_notes_no_carla(self):
-        # Máy test không có Carla local → 409 hướng dẫn định vị/mở Carla.
-        token = get_admin_token()
-        if not token:
-            pytest.skip("Cannot get admin token")
-        resp = client.post("/api/v1/plugins/carla-play-notes", headers={"Authorization": f"Bearer {token}"},
-                           json={"notes": [{"pitch": 60, "start_beat": 0, "duration_beats": 1}], "bpm": 120})
-        assert resp.status_code == 409
-
     # --- fx-gui embed (PLAN_MASTERBUS_VST_GUI_EMBED.md Phase 1) --------------
     def test_fx_gui_open_embed_returns_embed_url(self):
         token = get_admin_token()