diff --git a/app/api/v1/native.py b/app/api/v1/native.py
index 4e94b98..6b61fac 100644
--- a/app/api/v1/native.py
+++ b/app/api/v1/native.py
@@ -8,6 +8,7 @@ import os
 
 from app.core.native_audio_service import get_service
 from app.core.render_engine import _find_sf2_path
+from app.core.vst_engine import get_plugin_manager
 
 router = APIRouter()
 
@@ -47,7 +48,8 @@ class SfNoteOffRequest(BaseModel):
 
 class Vst2EnsureRequest(BaseModel):
     track_id: str
-    plugin_path: str
+    plugin_path: Optional[str] = None
+    plugin_id: Optional[str] = None  # resolve path server-side
     live: bool = True
 
 
@@ -63,6 +65,23 @@ class Vst2NoteOffRequest(BaseModel):
     channel: int = 0
     pitch: int
 
+class Vst3EnsureRequest(BaseModel):
+    track_id: str
+    plugin_path: Optional[str] = None
+    plugin_id: Optional[str] = None  # resolve path server-side
+    live: bool = True
+
+class Vst3NoteRequest(BaseModel):
+    track_id: str
+    channel: int = 0
+    pitch: int
+    velocity: int = 100
+
+class Vst3NoteOffRequest(BaseModel):
+    track_id: str
+    channel: int = 0
+    pitch: int
+
 
 class RenderNote(BaseModel):
     note: int = 60
@@ -89,6 +108,24 @@ def _svc():
     return get_service()
 
 
+def _resolve_plugin_path(plugin_id: str = None, plugin_path: str = None) -> str:
+    """Resolve plugin path server-side: uu tien plugin_path truc tiep, con
+    khong thi plugin_id = ten plugin trong registry scan (JS chi co plugin_id)."""
+    path = (plugin_path or "").strip()
+    if path:
+        return path
+    pid = (plugin_id or "").strip()
+    if pid:
+        try:
+            plugins = get_plugin_manager()._scan_plugins()
+            if pid in plugins:
+                return plugins[pid]
+        except Exception:
+            pass
+    return ""
+
+
+
 @router.get("/status")
 async def status():
     return _svc().status()
@@ -142,8 +179,12 @@ async def sf_audio_stop(req: SfNoteOffRequest):
 
 @router.post("/vst2/ensure")
 async def vst2_ensure(req: Vst2EnsureRequest):
+    path = _resolve_plugin_path(req.plugin_id, req.plugin_path)
+    if not path or not os.path.exists(path):
+        raise HTTPException(status_code=400, detail=f"khong tim thay plugin "
+                                                    f"(plugin_id={req.plugin_id!r} plugin_path={req.plugin_path!r})")
     try:
-        return _svc().ensure_vst2(req.track_id, req.plugin_path, req.live)
+        return _svc().ensure_vst2(req.track_id, path, req.live)
     except RuntimeError as e:
         raise HTTPException(status_code=400, detail=str(e))
 
@@ -163,6 +204,31 @@ async def vst2_note_off(req: Vst2NoteOffRequest):
     except RuntimeError as e:
         raise HTTPException(status_code=400, detail=str(e))
 
+@router.post("/vst3/ensure")
+async def vst3_ensure(req: Vst3EnsureRequest):
+    path = _resolve_plugin_path(req.plugin_id, req.plugin_path)
+    if not path or not os.path.exists(path):
+        raise HTTPException(status_code=400, detail=f"khong tim thay plugin "
+                                                    f"(plugin_id={req.plugin_id!r} plugin_path={req.plugin_path!r})")
+    try:
+        return _svc().ensure_vst3(req.track_id, path, req.live)
+    except RuntimeError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+@router.post("/vst3/note_on")
+async def vst3_note_on(req: Vst3NoteRequest):
+    try:
+        return _svc().vst3_note_on(req.track_id, req.channel, req.pitch, req.velocity)
+    except RuntimeError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+@router.post("/vst3/note_off")
+async def vst3_note_off(req: Vst3NoteOffRequest):
+    try:
+        return _svc().vst3_note_off(req.track_id, req.channel, req.pitch)
+    except RuntimeError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
 
 @router.post("/render")
 async def render(req: RenderRequest):
diff --git a/app/core/native_audio_service.py b/app/core/native_audio_service.py
index 420f0a2..4bbd8a9 100644
--- a/app/core/native_audio_service.py
+++ b/app/core/native_audio_service.py
@@ -30,8 +30,8 @@ _NATIVE_DIR = (
     or os.path.join(settings.BASE_DIR, "native_host", "build", "Release")
 )
 
-_ERR = None
-_LOCK = threading.Lock()
+_ERR = None  # khoi tao buffer sau khi dinh nghia _errbuf()
+_LOCK = threading.RLock()  # reentrant: _hidden_hwnd() goi trong ensure_*
 
 
 def native_dir() -> str:
@@ -49,6 +49,39 @@ def _errbuf():
 def _errval(buf) -> str:
     return buf.value.decode(errors="replace") if buf and buf.value else ""
 
+_ERR = _errbuf()  # module-level err buffer (dung chung, 256 bytes)
+
+
+def _hidden_hwnd():
+    """Tao 1 hidden window dung lam parent cho VST3 editor headless (live).
+    SF_VST3_Attach yeu cau parent_hwnd != NULL; window 0-size khong hien thi."""
+    import ctypes as _ct
+    from ctypes import wintypes as _wt
+    if getattr(_hidden_hwnd, "_hwnd", 0):
+        return _hidden_hwnd._hwnd
+    with _LOCK:
+        if getattr(_hidden_hwnd, "_hwnd", 0):
+            return _hidden_hwnd._hwnd
+        _u = _ct.windll.user32
+        _k = _ct.windll.kernel32
+        _u.DefWindowProcW.argtypes = [_wt.HWND, _wt.UINT, _ct.c_void_p, _ct.c_void_p]
+        _u.DefWindowProcW.restype = _ct.c_long
+        _WNDPROC = _ct.WINFUNCTYPE(_ct.c_long, _wt.HWND, _wt.UINT, _ct.c_void_p, _ct.c_void_p)  # WPARAM/LPARAM 64-bit
+        class _WC(_ct.Structure):
+            _fields_ = [("style", _ct.c_uint), ("lpfnWndProc", _WNDPROC), ("cbClsExtra", _ct.c_int),
+                        ("cbWndExtra", _ct.c_int), ("hInstance", _wt.HINSTANCE), ("hIcon", _wt.HICON),
+                        ("hCursor", _wt.HANDLE), ("hbrBackground", _wt.HBRUSH), ("lpszMenuName", _wt.LPCWSTR),
+                        ("lpszClassName", _wt.LPCWSTR)]
+        _wc = _WC()
+        _wc.lpfnWndProc = _WNDPROC(_u.DefWindowProcW)
+        _wc.lpszClassName = "SonicForgeNativeHidden"
+        _wc.hInstance = _k.GetModuleHandleW(None)
+        if _u.RegisterClassW(_ct.byref(_wc)) or _k.GetLastError() == 1410:  # 1410 = class ton tai
+            _h = _u.CreateWindowExW(0, "SonicForgeNativeHidden", "sf", 0, 0, 0, 0, 0,
+                                    None, None, _wc.hInstance, None)
+            _hidden_hwnd._hwnd = _h or 0
+        return _hidden_hwnd._hwnd
+
 
 def is_available() -> bool:
     return os.path.isfile(_dll("sf_host_bridge.dll"))
@@ -133,11 +166,21 @@ class _Vst3Ctx:
         self.handle = 0
 
     def create(self, plugin_path):
+        # Attach can plugin_name = ten class VST3 (ClassInfo::name) + parent
+        # hwnd. Ten class thuong = ten file/folder .vst3; hidden window cho
+        # live headless. Neu ten class khong khop -> rc 0 -> caller fallback.
+        base = os.path.basename(plugin_path.rstrip("\\/"))
+        if base.lower().endswith(".vst3"):
+            plugin_name = base[:-5]
+        else:
+            plugin_name = os.path.splitext(base)[0]
         w = ctypes.c_int32(0)
         h = ctypes.c_int32(0)
-        self.handle = self.dll.SF_VST3_Load(plugin_path.encode("utf-8"), 0,
-                                            ctypes.byref(w), ctypes.byref(h),
-                                            _ERR, 256)
+        self.handle = self.dll.SF_VST3_Attach(plugin_path.encode("utf-8"),
+                                              plugin_name.encode("utf-8"),
+                                              _hidden_hwnd(),
+                                              ctypes.byref(w), ctypes.byref(h),
+                                              _ERR, 256)
         return self.handle
 
     def close(self):
@@ -509,10 +552,10 @@ class NativeAudioService:
                 raise RuntimeError(f"thiếu {_dll('vst3_host_bridge.dll')}")
             dll = ctypes.WinDLL(_dll("vst3_host_bridge.dll"))
             i32 = ctypes.c_int32
-            dll.SF_VST3_Load.argtypes = [ctypes.c_char_p, ctypes.c_void_p,
-                                         ctypes.POINTER(i32), ctypes.POINTER(i32),
-                                         ctypes.c_char_p, i32]
-            dll.SF_VST3_Load.restype = i32
+            dll.SF_VST3_Attach.argtypes = [ctypes.c_char_p, ctypes.c_char_p,
+                                           ctypes.c_void_p, ctypes.POINTER(i32),
+                                           ctypes.POINTER(i32), ctypes.c_char_p, i32]
+            dll.SF_VST3_Attach.restype = i32
             dll.SF_VST3_SendNoteOn.argtypes = [i32, i32, i32, i32]
             dll.SF_VST3_SendNoteOn.restype = i32
             dll.SF_VST3_SendNoteOff.argtypes = [i32, i32, i32]
@@ -543,7 +586,7 @@ class NativeAudioService:
                 ctx = _Vst3Ctx(dll)
                 h = ctx.create(plugin_path)
                 if h <= 0:
-                    raise RuntimeError(f"SF_VST3_Load fail: {_errval(_ERR)}")
+                    raise RuntimeError(f"SF_VST3_Attach fail: {_errval(_ERR)}")
                 ctx.SetMasterGain(h, self._master_lin)
                 if live:
                     rc = ctx.AudioStart(h, self.sample_rate, self.block_size, _ERR, 256)
diff --git a/app/main.py b/app/main.py
index 5e6393b..7ed1b6e 100644
--- a/app/main.py
+++ b/app/main.py
@@ -134,6 +134,15 @@ async def get_index():
         return resp
 
 
+
+@app.get("/vst_gui.html", response_class=HTMLResponse)
+async def get_vst_gui():
+    """Cửa sổ VST GUI (Bug 1): Rust mở WebviewUrl::App("vst_gui.html?...") —
+    trong devUrl (localhost:8000) cần route riêng vì file nằm /static/vst_gui.html."""
+    vst_gui_path = os.path.join(STATIC_DIR, "vst_gui.html")
+    if os.path.exists(vst_gui_path):
+        return FileResponse(vst_gui_path, media_type="text/html")
+    return HTMLResponse(content="<h1>vst_gui.html not found</h1>", status_code=404)
 @app.get("/favicon.svg")
 async def get_favicon():
     favicon_path = os.path.join(settings.TEMPLATES_DIR, "favicon.svg")
diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx
index c0ca719..2aaa5c5 100644
--- a/app/static/js/app.jsx
+++ b/app/static/js/app.jsx
@@ -68,6 +68,25 @@ const resolveTrackInstrumentCtx = (track, tracks) => {
   return { ch, program: undefined, synthEngine: undefined, sfId: undefined, bank: 0, prog: 0 };
 };
 
+// Sub-tab (piano roll / section) instrument override: uu tien instrument cua
+// CHINH TAB (st.instrumentProgram / st.instrumentId sf_*) — section scope va
+// tab co the load instrument rieng khac main track. Khong co -> fallback track.
+const resolveSubTabInstrumentCtx = (st, fallbackTrack, tracks) => {
+  const all = tracks || [];
+  const ch = fallbackTrack ? assignTrackMidiChannel(fallbackTrack, all) : 0;
+  const stInstId = st && st.instrumentId;
+  if (st && stInstId && typeof stInstId === 'string' && stInstId.startsWith('sf_')) {
+    const sfId = stInstId.replace('sf_', '');
+    const sfProg = (st.instrumentProgram !== undefined && st.instrumentProgram !== null) ? st.instrumentProgram : 0;
+    const se = { type: 'soundfont', plugin_id: stInstId, soundfont_bank: 0, soundfont_program: sfProg, soundfont_id: sfId };
+    return { ch, program: undefined, synthEngine: se, sfId, bank: 0, prog: sfProg };
+  }
+  if (st && st.instrumentProgram !== undefined && st.instrumentProgram !== null) {
+    return { ch, program: st.instrumentProgram, synthEngine: undefined, sfId: undefined, bank: 0, prog: st.instrumentProgram };
+  }
+  return resolveTrackInstrumentCtx(fallbackTrack, all);
+};
+
 // 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.
@@ -126,6 +145,25 @@ const scheduleCarlaNote = (synthEngine, channel, pitch, velocity, startWallTime,
   } catch (e) { console.warn('[Carla] scheduleCarlaNote error:', e); }
 };
 
+// ── Native VST GUI (Bug 1) ──────────────────────────────────────────────
+// Standalone (Tauri): mo cua so native editor qua command Rust open_vst_gui
+// (VST3 .vst3 / VST2 .dll attach HWND, khong spawn Carla ngoai app).
+// Browser: fallback ve Carla bridge cu.
+const kindFromPath = (p) => (p || '').toLowerCase().endsWith('.vst3') ? 'vst3' : 'vst2';
+const canOpenNativeVstGui = () => !!(window.__TAURI__ && window.__TAURI__.core) || !!(window.SonicRuntime && window.SonicRuntime.capabilities && window.SonicRuntime.capabilities.features && window.SonicRuntime.capabilities.features.carla_local);
+const openNativeVstGui = (pluginId, trackId, pluginPath, pluginKind) => {
+  try {
+    if (window.__TAURI__ && window.__TAURI__.core) {
+      return window.__TAURI__.core.invoke('open_vst_gui', {
+        pluginId: pluginId || '',
+        trackId: trackId || '',
+        pluginPath: pluginPath || '',
+        pluginKind: pluginKind || kindFromPath(pluginPath),
+      });
+    }
+  } catch (e) { console.warn('[VstGui] invoke error, fallback Carla:', e); }
+  return window.SonicAPI && window.SonicAPI.openInCarla ? window.SonicAPI.openInCarla(pluginId, pluginPath) : Promise.resolve({ success: false });
+};
 // ── 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).
@@ -277,7 +315,11 @@ const _routePreviewNote = (trackId, ctx, pitch, velocity, durationMs, sourceType
 };
 const _stopMidiFilePreview = () => {
   if (_midiFilePreviewAudio) {
-    try { _midiFilePreviewAudio.pause(); _midiFilePreviewAudio.currentTime = 0; } catch (e) {}
+    try {
+      // AudioBufferSourceNode chi co stop(); HTMLAudioElement chi co pause().
+      if (_midiFilePreviewAudio.stop) { _midiFilePreviewAudio.stop(); }
+      else { _midiFilePreviewAudio.pause(); _midiFilePreviewAudio.currentTime = 0; }
+    } catch (e) {}
     _midiFilePreviewAudio = null;
   }
 };
@@ -5945,7 +5987,7 @@ const PluginManagerModal = ({ isOpen, onClose, pluginsData, onInsertInstrument }
                   ),
                   React.createElement('div', { className: 'flex items-center gap-2' },
                     (window.SonicRuntime && window.SonicRuntime.capabilities && window.SonicRuntime.capabilities.features && window.SonicRuntime.capabilities.features.carla_local) && React.createElement('button', {
-                      onClick: (e) => { e.stopPropagation(); window.SonicAPI.openInCarla(v.id).then(function (r) { if (r && r.success) showToast('Đã mở Carla với ' + (v.name || v.id), 'success'); }).catch(function (err) { showToast('Lỗi mở Carla: ' + (err.message || err), 'error'); }); },
+                      onClick: (e) => { e.stopPropagation(); openNativeVstGui(v.id, selectedTrackId, v.path, v.type).then(function (r) { if (r && (r.success || typeof r === 'string')) showToast('Đã mở GUI với ' + (v.name || v.id), 'success'); }).catch(function (err) { showToast('Lỗi mở VST GUI: ' + (err.message || err), 'error'); }); },
                       className: 'text-[10px] bg-teal-800 hover:bg-teal-700 text-white px-2 py-1 rounded transition shrink-0',
                       title: 'Mở trong Carla (native GUI)'
                     }, '🎛 Carla'),
@@ -6102,7 +6144,7 @@ const PluginManagerModal = ({ isOpen, onClose, pluginsData, onInsertInstrument }
                     React.createElement('span', { className: 'truncate' }, v.name),
                     React.createElement('span', { className: 'text-[9px] text-zinc-600 font-mono truncate ml-auto' }, v.dir),
                     (window.SonicRuntime && window.SonicRuntime.capabilities && window.SonicRuntime.capabilities.features && window.SonicRuntime.capabilities.features.carla_local) && React.createElement('button', {
-                      onClick: () => { window.SonicAPI.openInCarla(null, v.path).then(function (r) { if (r && r.success) showToast('Đã mở Carla với ' + v.name, 'success'); }).catch(function (err) { showToast('Lỗi mở Carla: ' + (err.message || err), 'error'); }); },
+                      onClick: () => { openNativeVstGui(v.name || v.id, selectedTrackId, v.path, v.type).then(function (r) { if (r && (r.success || typeof r === 'string')) showToast('Đã mở GUI với ' + v.name, 'success'); }).catch(function (err) { showToast('Lỗi mở VST GUI: ' + (err.message || err), 'error'); }); },
                       className: 'text-[9px] bg-teal-800 hover:bg-teal-700 text-white px-1.5 py-0.5 rounded transition shrink-0',
                       title: 'Mở trong Carla (native GUI)'
                     }, '🎛')
@@ -8287,7 +8329,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
             currentBeat < n.start_beat && newBeat >= n.start_beat
           );
           var pvTrk = activeTracks.find(function(t) { return t.id === st.trackId; });
-          var pvCtx = resolveTrackInstrumentCtx(pvTrk, activeTracks);
+          var pvCtx = resolveSubTabInstrumentCtx(st, pvTrk, activeTracks);
           ensureSonicInstrument(pvCtx);
           playing.forEach(n => {
             if (isStandaloneSf() && isSfTrackEngine(pvCtx.synthEngine) && !shouldRouteCarla(pvCtx.synthEngine)) {
@@ -8660,7 +8702,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
       if (window.SonicSF) {
         const ctx = getAudioContext();
         var clTrk = activeTracks.find(function(t) { return t.id === st.trackId; });
-        var clCtx = resolveTrackInstrumentCtx(clTrk, activeTracks);
+        var clCtx = resolveSubTabInstrumentCtx(st, clTrk, activeTracks);
         ensureSonicInstrument(clCtx);
         if (isStandaloneSf() && isSfTrackEngine(clCtx.synthEngine) && !shouldRouteCarla(clCtx.synthEngine)) {
           if (!_routePreviewNote(clTrk && clTrk.id, clCtx, notes[clickedNoteIdx].pitch, notes[clickedNoteIdx].velocity || 0.8, 300, 'CLICK')) {
@@ -8925,15 +8967,15 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
         previewNodesRef.current = null;
       }
       var dwTrk = activeTracks.find(function(t) { return t.id === st.trackId; });
-      var dwCtx = resolveTrackInstrumentCtx(dwTrk, activeTracks);
+      var dwCtx = resolveSubTabInstrumentCtx(st, dwTrk, activeTracks);
       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)) {
+      if (isStandaloneSf() && isSfTrackEngine(dwCtx.synthEngine) && !shouldRouteCarla(dwCtx.synthEngine)) {
         if (!_routePreviewNote(dwTrk && dwTrk.id, dwCtx, dwPitch, brushVelocityRef.current || 0.8, dwDurMs, 'DRAW')) {
           if (window.SonicSF && window.SonicSF.playNote) {
             const ctx = getAudioContext();
-            window.SonicSF.playNote(dwPitch, Math.round(brushVelocityRef.current * 127), dwDurMs, ctx.currentTime, dwTrk ? dwTrk.instrumentProgram : undefined, null, dwCh, dwTrk ? dwTrk.synth_engine : undefined);
+            window.SonicSF.playNote(dwPitch, Math.round(brushVelocityRef.current * 127), dwDurMs, ctx.currentTime, dwCtx.program, null, dwCh, dwCtx.synthEngine);
           }
         }
       } else if (window.SonicSF && window.SonicSF.playNote) {
@@ -8941,7 +8983,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
         // 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).
-        window.SonicSF.playNote(dwPitch, Math.round(brushVelocityRef.current * 127), dwDurMs, ctx.currentTime, dwTrk ? dwTrk.instrumentProgram : undefined, null, dwCh, dwTrk ? dwTrk.synth_engine : undefined);
+        window.SonicSF.playNote(dwPitch, Math.round(brushVelocityRef.current * 127), dwDurMs, ctx.currentTime, dwCtx.program, null, dwCh, dwCtx.synthEngine);
       }
     }
   };
@@ -9034,7 +9076,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
         // 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);
+        var pvCtxInst = resolveSubTabInstrumentCtx(st, pvTrk, activeTracks);
         if (isStandaloneSf() && isSfTrackEngine(pvCtxInst.synthEngine) && !shouldRouteCarla(pvCtxInst.synthEngine)) {
           if (!_routePreviewNote(pvTrk && pvTrk.id, pvCtxInst, p, brushVelocityRef.current || 0.8, durMs, 'DRAW')) {
             if (window.SonicSF && window.SonicSF.playNote) {
@@ -9409,7 +9451,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, activeTracks, onClos
 
   const renderKeybed = () => {
     var kbTrk = activeTracks.find(function(t) { return t.id === st.trackId; });
-    var kbCtx = resolveTrackInstrumentCtx(kbTrk, activeTracks);
+    var kbCtx = resolveSubTabInstrumentCtx(st, kbTrk, activeTracks);
     ensureSonicInstrument(kbCtx);
     const keys = [];
     for (let pitch = 127; pitch >= PITCH_START; pitch--) {
@@ -11823,10 +11865,10 @@ const FXRackModal = ({ track, onUpdateTrack, onClose }) => {
                   <button
                     onClick={() => {
                       if (!ap.plugin) { window.showToast && window.showToast('Chọn VST FX trước khi Load Carla', 'warning'); return; }
-                      window.SonicAPI.openInCarla(ap.plugin, ap.plugin_path).then(r => {
-                        if (r && r.success) { window.showToast && window.showToast('Đã mở Carla với ' + ap.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'));
+                      openNativeVstGui(ap.plugin, track.id, ap.plugin_path, kindFromPath(ap.plugin_path)).then(r => {
+                        if (r && (r.success || typeof r === 'string')) { window.showToast && window.showToast('Đã mở GUI với ' + ap.plugin + ' (VST FX) — chỉnh âm thanh trong cửa sổ', 'success'); }
+                        else { window.showToast && window.showToast('Không mở được VST GUI', 'error'); }
+                      }).catch(err => window.showToast && window.showToast('Lỗi mở VST GUI: ' + (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"
                   >
@@ -12952,12 +12994,12 @@ const MasteringModal = ({ isOpen, onClose, masteringSettings, setMasteringSettin
                       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) {
+                        openNativeVstGui(plugin, '', ozState.carlaBridge.plugin_path, kindFromPath(ozState.carlaBridge.plugin_path)).then(r => {
+                          if (r && (r.success || typeof r === 'string')) {
                             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'));
+                            window.showToast && window.showToast('Đã mở GUI với ' + plugin + ' (VST FX) — chỉnh âm thanh trong cửa sổ', 'success');
+                          } else { window.showToast && window.showToast('Không mở được VST GUI', 'error'); }
+                        }).catch(err => window.showToast && window.showToast('Lỗi mở VST GUI: ' + (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"
                     >
@@ -14281,14 +14323,34 @@ const MediaExplorerPanel = ({ height, clipboardRef, active }) => {
             };
           });
         if (nativeNotes.length) {
-          window.SonicAPI.soundfontRender({ soundfont_id: sfId, bank: bank, program: prog !== undefined ? prog : 0, bpm: bpmVal, notes: nativeNotes }).then(function (res) {
+          window.SonicAPI.soundfontRender({ soundfont_id: sfId, bank: bank, program: prog !== undefined ? prog : 0, bpm: bpmVal, notes: nativeNotes }).then(async function (res) {
             if (!res || !res.success || !res.url) return;
             if (selectTokenRef.current !== (token || selectTokenRef.current)) return;
-            const audio = new Audio(API_BASE_URL + res.url);
-            audio.loop = !!isLoopingRef.current;
-            if (_midiFilePreviewAudio) { try { _midiFilePreviewAudio.pause(); } catch (e) {} }
-            _midiFilePreviewAudio = audio;
-            audio.play().catch(function () {});
+            // Preview qua masterBus (mastering FX main out khi chain bat; nguoc
+            // lai qua dryInput) — truoc day new Audio() ra thang loa.
+            try {
+              const resp = await fetch(API_BASE_URL + res.url);
+              const arrBuf = await resp.arrayBuffer();
+              const ctx2 = getAudioContext();
+              const decoded = await ctx2.decodeAudioData(arrBuf);
+              if (selectTokenRef.current !== (token || selectTokenRef.current)) return;
+              const src = ctx2.createBufferSource();
+              src.buffer = decoded;
+              src.loop = !!isLoopingRef.current;
+              const g = ctx2.createGain();
+              src.connect(g);
+              const mb = window.masterBus;
+              if (mb && mb.input && mb.dryInput) {
+                g.connect(masteringChainOn() ? mb.input : mb.dryInput);
+              } else {
+                g.connect(ctx2.destination);
+              }
+              if (_midiFilePreviewAudio) {
+                try { if (_midiFilePreviewAudio.stop) _midiFilePreviewAudio.stop(); else _midiFilePreviewAudio.pause(); } catch (e) {}
+              }
+              _midiFilePreviewAudio = src;
+              src.start();
+            } catch (e) { console.error('MIDI preview audio failed', e); }
           });
         }
         const startedAtTime = startWallTime - loopStartSec;
@@ -22202,7 +22264,7 @@ const App = () => {
     // phải chơi ĐÚNG instrument đó. ensureSonicInstrument select channel đúng
     // trước khi notes bắn (fire-and-forget — playNote tự load+retry nếu SF
     // chưa xong).
-    const instCtx = resolveTrackInstrumentCtx(track, activeTracksRef.current || []);
+    const instCtx = resolveSubTabInstrumentCtx(st, track, activeTracksRef.current || []);
     const instrumentProgram = instCtx.program;
     const synthEngine = instCtx.synthEngine;
     const mainCh = instCtx.ch;
@@ -22215,7 +22277,10 @@ const App = () => {
     // the item window, so no absolute-session offset is applied anywhere here.
     const routeCarla = shouldRouteCarla(synthEngine);
     if (isStandaloneSf() && !routeCarla && isSfTrackEngine(synthEngine)) {
-      scheduleNativeSfItem(track, { startTime: 0, notes: midiNotes }, offsetSeconds, context, destNode, bpm, { sources: activeSourcesRef.current, isActive: () => !!isPlayingRef.current });
+      // synthEngine co the la instrument cua CHINH TAB (resolveSubTabInstrumentCtx)
+      // — pseudo-track de scheduleNativeSfItem render dung SF cua tab.
+      const nativeTrack = synthEngine ? Object.assign({}, track, { synth_engine: synthEngine }) : track;
+      scheduleNativeSfItem(nativeTrack, { startTime: 0, notes: midiNotes }, offsetSeconds, context, destNode, bpm, { sources: activeSourcesRef.current, isActive: () => !!isPlayingRef.current });
       return; // native render cả tab → audio buffer (không per-note WASM/Carla)
     }
     midiNotes.forEach(note => {
@@ -24476,7 +24541,9 @@ const App = () => {
       }
     } catch (e) {
       showToast('Không thể nạp file từ Media Explorer: ' + e.message, 'error');
+      return null;
     }
+    showToast('Không thể nạp file từ Media Explorer: thiếu dữ liệu file.', 'error');
     return null;
   };
 
@@ -29798,7 +29865,14 @@ STRICT CONSTRAINTS:
           }
           return;
         }
-        const f = e.dataTransfer.files && e.dataTransfer.files[0];
+        const dt = e.dataTransfer;
+        let f = dt && dt.files && dt.files[0];
+        if (!f && dt && dt.items) {
+          for (let i = 0; i < dt.items.length; i++) {
+            const it = dt.items[i];
+            if (it.kind === 'file' && typeof it.getAsFile === 'function') { f = it.getAsFile(); if (f) break; }
+          }
+        }
         if (!f) return;
         if (/\.mid$|\.midi$/i.test(f.name || '')) {
           handleDropMidiToNewTracks(f);
@@ -29838,7 +29912,14 @@ STRICT CONSTRAINTS:
             if (f) loadFileOnTrack(track.id, f);
             return;
           }
-          const f = e.dataTransfer.files && e.dataTransfer.files[0];
+          const dt = e.dataTransfer;
+          let f = dt && dt.files && dt.files[0];
+          if (!f && dt && dt.items) {
+            for (let i = 0; i < dt.items.length; i++) {
+              const it = dt.items[i];
+              if (it.kind === 'file' && typeof it.getAsFile === 'function') { f = it.getAsFile(); if (f) break; }
+            }
+          }
           if (!f) return;
           loadFileOnTrack(track.id, f);
         },
@@ -31295,10 +31376,10 @@ STRICT CONSTRAINTS:
               closeInstrumentSelector();
               // TỰ ĐỘNG mở Carla với VSTi vừa chọn (desktop + Carla local) —
               // Carla load sẵn plugin + keyboard ảo để preview realtime.
-              if (window.SonicRuntime && window.SonicRuntime.capabilities && window.SonicRuntime.capabilities.features && window.SonicRuntime.capabilities.features.carla_local) {
-                window.SonicAPI.openInCarla(v.id).then(function (r) {
-                  if (r && r.success) showToast('Đã mở Carla với ' + (v.name || v.id) + ' — chọn preset, bấm keyboard để preview', 'success');
-                }).catch(function (err) { showToast('Lỗi mở Carla: ' + (err.message || err), 'error'); });
+              if (canOpenNativeVstGui()) {
+                openNativeVstGui(v.id, instrumentSelectorTrackId, v.path, v.type).then(function (r) {
+                  if (r && (r.success || typeof r === 'string')) showToast('Đã mở GUI với ' + (v.name || v.id) + ' — chỉnh tham số, bấm keyboard để preview', 'success');
+                }).catch(function (err) { showToast('Lỗi mở VST GUI: ' + (err.message || err), 'error'); });
               }
             },
             className: "w-full text-left px-3 py-2 text-sm rounded bg-zinc-800 hover:bg-violet-800 text-zinc-300 flex items-center justify-between gap-2"
@@ -31386,18 +31467,17 @@ STRICT CONSTRAINTS:
           setInstrumentDropdownTrackId(null);
           setInstrumentDropdownBtnRect(null);
           setTrackInstrumentWithUndo(instrumentDropdownTrackId, v.id, v.name || v.id);
-          // TỰ ĐỘNG mở Carla với VSTi vừa chọn (desktop + Carla local) —
-          // Carla load sẵn plugin, native GUI + keyboard ảo để preview realtime.
-          if (window.SonicRuntime && window.SonicRuntime.capabilities && window.SonicRuntime.capabilities.features && window.SonicRuntime.capabilities.features.carla_local) {
-            window.SonicAPI.openInCarla(v.id).then(function (r) {
-              if (r && r.success) showToast('Đã mở Carla với ' + (v.name || v.id) + ' — chọn preset, bấm keyboard để preview', 'success');
-            }).catch(function (err) { showToast('Lỗi mở Carla: ' + (err.message || err), 'error'); });
+          // TỰ ĐỘNG mở native GUI với VSTi vừa chọn (standalone) / Carla (browser).
+          if (canOpenNativeVstGui()) {
+            openNativeVstGui(v.id, instrumentDropdownTrackId, v.path, v.type).then(function (r) {
+              if (r && (r.success || typeof r === 'string')) showToast('Đã mở GUI với ' + (v.name || v.id) + ' — chọn preset, bấm keyboard để preview', 'success');
+            }).catch(function (err) { showToast('Lỗi mở VST GUI: ' + (err.message || err), 'error'); });
           }
         },
         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")),
       window.SonicRuntime && window.SonicRuntime.capabilities && window.SonicRuntime.capabilities.features && window.SonicRuntime.capabilities.features.carla_local ? /*#__PURE__*/React.createElement("button", {
-        onClick: (e) => { e.stopPropagation(); window.SonicAPI.openInCarla(v.id).then(function (r) { if (r && r.success) { showToast('Đã mở Carla: ' + (v.name || v.id), 'success'); } }).catch(function (err) { showToast('Lỗi mở Carla: ' + (err.message || err), 'error'); }); },
+        onClick: (e) => { e.stopPropagation(); openNativeVstGui(v.id, instrumentDropdownTrackId, v.path, v.type).then(function (r) { if (r && (r.success || typeof r === 'string')) { showToast('Đã mở GUI: ' + (v.name || v.id), 'success'); } }).catch(function (err) { showToast('Lỗi mở VST GUI: ' + (err.message || err), 'error'); }); },
         className: "shrink-0 px-2 text-xs bg-zinc-800 hover:bg-teal-700 text-teal-300 border-l border-zinc-700",
         title: "Mở trong Carla (native GUI)"
       }, "\uD83C\uDF9B") : null
diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js
index 844f802..7a18f18 100644
--- a/app/static/js/app.precompiled.js
+++ b/app/static/js/app.precompiled.js
@@ -12,7 +12,10 @@ const trackMidiChannelsRef={current:{}};const ensureTrackMidiChannel=(track,trac
 // context thống nhất cho schedulePianoRollMidi + preview (wheel/click/keybed)
 // để note PHẢI chơi đúng instrument của track — không phụ thuộc st snapshot.
 const resolveTrackInstrumentCtx=(track,tracks)=>{const all=tracks||[];const ch=track?assignTrackMidiChannel(track,all):0;const se=track?track.synth_engine:undefined;const isSf=!!(se&&(se.type==='soundfont'||se.soundfont_id));if(isSf){return{ch,program:undefined,// SF path — synthEngine được ưu tiên trong _playNoteFluid
-synthEngine:se,sfId:se.soundfont_id,bank:se.soundfont_bank||0,prog:se.soundfont_program||0};}if(track&&track.instrumentProgram!==undefined){return{ch,program:track.instrumentProgram,synthEngine:undefined,sfId:undefined,bank:0,prog:track.instrumentProgram};}return{ch,program:undefined,synthEngine:undefined,sfId:undefined,bank:0,prog:0};};// Đảm bảo FluidSynth channel của track đã select ĐÚNG instrument trước khi
+synthEngine:se,sfId:se.soundfont_id,bank:se.soundfont_bank||0,prog:se.soundfont_program||0};}if(track&&track.instrumentProgram!==undefined){return{ch,program:track.instrumentProgram,synthEngine:undefined,sfId:undefined,bank:0,prog:track.instrumentProgram};}return{ch,program:undefined,synthEngine:undefined,sfId:undefined,bank:0,prog:0};};// Sub-tab (piano roll / section) instrument override: uu tien instrument cua
+// CHINH TAB (st.instrumentProgram / st.instrumentId sf_*) — section scope va
+// tab co the load instrument rieng khac main track. Khong co -> fallback track.
+const resolveSubTabInstrumentCtx=(st,fallbackTrack,tracks)=>{const all=tracks||[];const ch=fallbackTrack?assignTrackMidiChannel(fallbackTrack,all):0;const stInstId=st&&st.instrumentId;if(st&&stInstId&&typeof stInstId==='string'&&stInstId.startsWith('sf_')){const sfId=stInstId.replace('sf_','');const sfProg=st.instrumentProgram!==undefined&&st.instrumentProgram!==null?st.instrumentProgram:0;const se={type:'soundfont',plugin_id:stInstId,soundfont_bank:0,soundfont_program:sfProg,soundfont_id:sfId};return{ch,program:undefined,synthEngine:se,sfId,bank:0,prog:sfProg};}if(st&&st.instrumentProgram!==undefined&&st.instrumentProgram!==null){return{ch,program:st.instrumentProgram,synthEngine:undefined,sfId:undefined,bank:0,prog:st.instrumentProgram};}return resolveTrackInstrumentCtx(fallbackTrack,all);};// 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 ────────────────────────────────────
@@ -24,7 +27,11 @@ const fireCarlaNote=(ch,pitch,vel,delay,durMs)=>{setTimeout(function(){window.So
 // 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 ────────────────────────────────
+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);}};// ── Native VST GUI (Bug 1) ──────────────────────────────────────────────
+// Standalone (Tauri): mo cua so native editor qua command Rust open_vst_gui
+// (VST3 .vst3 / VST2 .dll attach HWND, khong spawn Carla ngoai app).
+// Browser: fallback ve Carla bridge cu.
+const kindFromPath=p=>(p||'').toLowerCase().endsWith('.vst3')?'vst3':'vst2';const canOpenNativeVstGui=()=>!!(window.__TAURI__&&window.__TAURI__.core)||!!(window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local);const openNativeVstGui=(pluginId,trackId,pluginPath,pluginKind)=>{try{if(window.__TAURI__&&window.__TAURI__.core){return window.__TAURI__.core.invoke('open_vst_gui',{pluginId:pluginId||'',trackId:trackId||'',pluginPath:pluginPath||'',pluginKind:pluginKind||kindFromPath(pluginPath)});}}catch(e){console.warn('[VstGui] invoke error, fallback Carla:',e);}return window.SonicAPI&&window.SonicAPI.openInCarla?window.SonicAPI.openInCarla(pluginId,pluginPath):Promise.resolve({success:false});};// ── 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 —
@@ -51,7 +58,8 @@ const _routeNoteOn=(trackId,ctx,pitch,velocity,durationMs,sourceType,startTime)=
 // cho click/draw/playing-tick không có note-off riêng).
 const _routePreviewNote=(trackId,ctx,pitch,velocity,durationMs,sourceType,startTime)=>{if(!_routeNoteOn(trackId,ctx,pitch,velocity,durationMs,sourceType,startTime))return false;const dur=Math.max(50,durationMs||500);let delayMs=dur+60;// Scheduler (TIMELINE_SCHEDULER) schedule theo audio clock → note-off đợi
 // sau khi note bắt đầu + duration (giữ tracker đối xứng cho scheduled note).
-if(startTime){try{delayMs=Math.max(0,(startTime-getAudioContext().currentTime)*1000)+dur+60;}catch(e){}}setTimeout(()=>{_routeNoteOff(trackId,ctx,pitch,sourceType);},delayMs);return true;};const _stopMidiFilePreview=()=>{if(_midiFilePreviewAudio){try{_midiFilePreviewAudio.pause();_midiFilePreviewAudio.currentTime=0;}catch(e){}_midiFilePreviewAudio=null;}};const _panicMidi=()=>{_stopMidiFilePreview();const router=_getMidiRouter();if(router){try{router.panicAllNotesOff();}catch(e){}}};// ── Native soundfont item render (standalone, transport) ──────────────────
+if(startTime){try{delayMs=Math.max(0,(startTime-getAudioContext().currentTime)*1000)+dur+60;}catch(e){}}setTimeout(()=>{_routeNoteOff(trackId,ctx,pitch,sourceType);},delayMs);return true;};const _stopMidiFilePreview=()=>{if(_midiFilePreviewAudio){try{// AudioBufferSourceNode chi co stop(); HTMLAudioElement chi co pause().
+if(_midiFilePreviewAudio.stop){_midiFilePreviewAudio.stop();}else{_midiFilePreviewAudio.pause();_midiFilePreviewAudio.currentTime=0;}}catch(e){}_midiFilePreviewAudio=null;}};const _panicMidi=()=>{_stopMidiFilePreview();const router=_getMidiRouter();if(router){try{router.panicAllNotesOff();}catch(e){}}};// ── Native soundfont item render (standalone, transport) ──────────────────
 // Render TOÀN BỘ MIDI item bằng native FluidSynth → decode AudioBuffer →
 // schedule nguồn audio đúng vị trí item (giống audio clip). opts:
 //   baseOffsetSec: offset thêm (section: secStart) | limitSec: chặn tại secEnd
@@ -445,9 +453,9 @@ pmPicker&&React.createElement('div',{className:'absolute inset-0 z-10 bg-[#17171
 React.createElement('div',{className:'flex items-center justify-between px-5 py-3 bg-[#252525] border-b border-[#383838]'},React.createElement('h3',{className:'text-base font-bold text-cyan-400 flex items-center gap-2'},React.createElement('i',{'data-lucide':'zap',className:'w-4 h-4'}),'Plugin Manager (SoundFont / VSTi)'),React.createElement('button',{onClick:onClose,className:'text-zinc-500 hover:text-zinc-200 transition'},React.createElement('i',{'data-lucide':'x',className:'w-4 h-4'}))),// Left-right body
 React.createElement('div',{className:'flex flex-1 overflow-hidden',style:{minHeight:'300px'}},// Left sidebar
 React.createElement('div',{className:'w-40 shrink-0 border-r border-[#383838] bg-[#1a1a1a] p-3 flex flex-col gap-2'},['vst','soundfont'].map(tab=>React.createElement('button',{key:tab,onClick:()=>setPmTab(tab),className:`w-full py-2 text-xs font-bold rounded transition border ${pmTab===tab?tab==='vst'?'bg-violet-900 border-violet-700 text-violet-200':'bg-amber-900 border-amber-700 text-amber-200':'bg-zinc-800 border-transparent text-zinc-400 hover:text-zinc-200 hover:bg-zinc-700'} flex items-center gap-2 px-3`},React.createElement('i',{'data-lucide':tab==='vst'?'cpu':'music',className:'w-3.5 h-3.5'}),tab==='vst'?'VST Instruments':'SoundFonts'))),// Right content
-React.createElement('div',{className:'flex-1 overflow-y-auto p-4 bg-[#1e1e1e]'},!localData?React.createElement('div',{className:'flex items-center justify-center h-full text-zinc-500 text-xs'},'Loading...'):React.createElement('div',{className:'space-y-2'},pmTab==='vst'?localData.vst_instruments?.length===0?React.createElement('div',{className:'flex items-center justify-center h-32 text-zinc-500 text-xs'},'No VST instruments found on server.'):localData.vst_instruments.map((v,i)=>React.createElement('div',{key:i,className:'flex items-center justify-between bg-[#252525] px-4 py-3 rounded-lg border border-[#333] hover:border-violet-800/50 transition'},React.createElement('div',{className:'flex items-center gap-3'},React.createElement('div',{className:'w-8 h-8 rounded bg-violet-900/30 flex items-center justify-center'},React.createElement('i',{'data-lucide':'cpu',className:'w-4 h-4 text-violet-400'})),React.createElement('div',null,React.createElement('div',{className:'text-xs font-semibold text-slate-200'},v.name||v.id),React.createElement('div',{className:'text-[10px] text-zinc-500'},v.type||'VST3'))),React.createElement('div',{className:'flex items-center gap-2'},window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local&&React.createElement('button',{onClick:e=>{e.stopPropagation();window.SonicAPI.openInCarla(v.id).then(function(r){if(r&&r.success)showToast('Đã mở Carla với '+(v.name||v.id),'success');}).catch(function(err){showToast('Lỗi mở Carla: '+(err.message||err),'error');});},className:'text-[10px] bg-teal-800 hover:bg-teal-700 text-white px-2 py-1 rounded transition shrink-0',title:'Mở trong Carla (native GUI)'},'🎛 Carla'),React.createElement('span',{className:'text-[10px] bg-violet-950/40 text-violet-400 px-2 py-0.5 rounded-full border border-violet-800/30'},v.type||'VST3')))):localData.soundfonts?.length===0?React.createElement('div',{className:'flex items-center justify-center h-32 text-zinc-500 text-xs'},'No SoundFonts found. Upload one below.'):localData.soundfonts.map((sf,i)=>{const baseId=String(sf.id||'').replace('sf_','');const expanded=!!pmSfExpanded[baseId];const insts=pmSfInstruments[baseId]||[];const loading=!!pmSfLoading[baseId];return React.createElement('div',{key:i,className:'bg-[#252525] rounded-lg border border-[#333] hover:border-amber-800/50 transition group'},React.createElement('div',{className:'flex items-center justify-between px-4 py-3 cursor-pointer',onClick:()=>toggleSfInstruments(sf)},React.createElement('div',{className:'flex items-center gap-3'},React.createElement('div',{className:'w-8 h-8 rounded bg-amber-900/30 flex items-center justify-center'},React.createElement('i',{'data-lucide':'music',className:'w-4 h-4 text-amber-400'})),React.createElement('div',null,React.createElement('div',{className:'text-xs font-semibold text-slate-200'},sf.display||sf.name||sf.id),React.createElement('div',{className:'text-[10px] text-zinc-500'},(sf.file||sf.name)+(insts.length?' — '+insts.length+' instruments':'')))),React.createElement('div',{className:'flex items-center gap-2'},React.createElement('span',{className:'text-[10px] text-zinc-500'},expanded?'▾':'▸'),React.createElement('button',{onClick:e=>{e.stopPropagation();setSfToDelete(sf);},className:'text-[10px] text-zinc-500 hover:text-red-400 opacity-0 group-hover:opacity-100 transition px-2 py-1'},'Delete'))),expanded&&React.createElement('div',{className:'border-t border-[#333] px-3 py-1 max-h-40 overflow-y-auto'},loading?React.createElement('p',{className:'text-[10px] text-zinc-500 italic py-1'},'Đang đọc instruments...'):insts.length===0?React.createElement('p',{className:'text-[10px] text-zinc-500 italic py-1'},'Không có instrument (SF3 cần chuyển đổi trước)'):insts.map((p,pi)=>React.createElement('div',{key:'si_'+pi,className:'flex items-center gap-2 py-1 text-[11px]'},React.createElement('span',{className:'text-zinc-500 font-mono w-24 shrink-0 text-[9px]'},'B'+(p.bank||0)+' P'+(p.program||0)),React.createElement('span',{className:'flex-1 truncate text-zinc-300'},p.name||'Program '+p.program),React.createElement('button',{onClick:()=>onInsertInstrument&&onInsertInstrument({instrumentId:'sf_'+baseId,bank:p.bank||0,program:p.program||0,name:p.name||'Program '+p.program,displayName:(sf.display||sf.name||sf.id)+' — '+(p.name||'Program '+p.program)}),className:'text-[10px] bg-amber-800 hover:bg-amber-700 text-white px-2 py-0.5 rounded transition shrink-0'},'Chèn vào Synth')))));})),// ── Carla Bridge section (desktop) — định vị carla.exe portable ──
+React.createElement('div',{className:'flex-1 overflow-y-auto p-4 bg-[#1e1e1e]'},!localData?React.createElement('div',{className:'flex items-center justify-center h-full text-zinc-500 text-xs'},'Loading...'):React.createElement('div',{className:'space-y-2'},pmTab==='vst'?localData.vst_instruments?.length===0?React.createElement('div',{className:'flex items-center justify-center h-32 text-zinc-500 text-xs'},'No VST instruments found on server.'):localData.vst_instruments.map((v,i)=>React.createElement('div',{key:i,className:'flex items-center justify-between bg-[#252525] px-4 py-3 rounded-lg border border-[#333] hover:border-violet-800/50 transition'},React.createElement('div',{className:'flex items-center gap-3'},React.createElement('div',{className:'w-8 h-8 rounded bg-violet-900/30 flex items-center justify-center'},React.createElement('i',{'data-lucide':'cpu',className:'w-4 h-4 text-violet-400'})),React.createElement('div',null,React.createElement('div',{className:'text-xs font-semibold text-slate-200'},v.name||v.id),React.createElement('div',{className:'text-[10px] text-zinc-500'},v.type||'VST3'))),React.createElement('div',{className:'flex items-center gap-2'},window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local&&React.createElement('button',{onClick:e=>{e.stopPropagation();openNativeVstGui(v.id,selectedTrackId,v.path,v.type).then(function(r){if(r&&(r.success||typeof r==='string'))showToast('Đã mở GUI với '+(v.name||v.id),'success');}).catch(function(err){showToast('Lỗi mở VST GUI: '+(err.message||err),'error');});},className:'text-[10px] bg-teal-800 hover:bg-teal-700 text-white px-2 py-1 rounded transition shrink-0',title:'Mở trong Carla (native GUI)'},'🎛 Carla'),React.createElement('span',{className:'text-[10px] bg-violet-950/40 text-violet-400 px-2 py-0.5 rounded-full border border-violet-800/30'},v.type||'VST3')))):localData.soundfonts?.length===0?React.createElement('div',{className:'flex items-center justify-center h-32 text-zinc-500 text-xs'},'No SoundFonts found. Upload one below.'):localData.soundfonts.map((sf,i)=>{const baseId=String(sf.id||'').replace('sf_','');const expanded=!!pmSfExpanded[baseId];const insts=pmSfInstruments[baseId]||[];const loading=!!pmSfLoading[baseId];return React.createElement('div',{key:i,className:'bg-[#252525] rounded-lg border border-[#333] hover:border-amber-800/50 transition group'},React.createElement('div',{className:'flex items-center justify-between px-4 py-3 cursor-pointer',onClick:()=>toggleSfInstruments(sf)},React.createElement('div',{className:'flex items-center gap-3'},React.createElement('div',{className:'w-8 h-8 rounded bg-amber-900/30 flex items-center justify-center'},React.createElement('i',{'data-lucide':'music',className:'w-4 h-4 text-amber-400'})),React.createElement('div',null,React.createElement('div',{className:'text-xs font-semibold text-slate-200'},sf.display||sf.name||sf.id),React.createElement('div',{className:'text-[10px] text-zinc-500'},(sf.file||sf.name)+(insts.length?' — '+insts.length+' instruments':'')))),React.createElement('div',{className:'flex items-center gap-2'},React.createElement('span',{className:'text-[10px] text-zinc-500'},expanded?'▾':'▸'),React.createElement('button',{onClick:e=>{e.stopPropagation();setSfToDelete(sf);},className:'text-[10px] text-zinc-500 hover:text-red-400 opacity-0 group-hover:opacity-100 transition px-2 py-1'},'Delete'))),expanded&&React.createElement('div',{className:'border-t border-[#333] px-3 py-1 max-h-40 overflow-y-auto'},loading?React.createElement('p',{className:'text-[10px] text-zinc-500 italic py-1'},'Đang đọc instruments...'):insts.length===0?React.createElement('p',{className:'text-[10px] text-zinc-500 italic py-1'},'Không có instrument (SF3 cần chuyển đổi trước)'):insts.map((p,pi)=>React.createElement('div',{key:'si_'+pi,className:'flex items-center gap-2 py-1 text-[11px]'},React.createElement('span',{className:'text-zinc-500 font-mono w-24 shrink-0 text-[9px]'},'B'+(p.bank||0)+' P'+(p.program||0)),React.createElement('span',{className:'flex-1 truncate text-zinc-300'},p.name||'Program '+p.program),React.createElement('button',{onClick:()=>onInsertInstrument&&onInsertInstrument({instrumentId:'sf_'+baseId,bank:p.bank||0,program:p.program||0,name:p.name||'Program '+p.program,displayName:(sf.display||sf.name||sf.id)+' — '+(p.name||'Program '+p.program)}),className:'text-[10px] bg-amber-800 hover:bg-amber-700 text-white px-2 py-0.5 rounded transition shrink-0'},'Chèn vào Synth')))));})),// ── Carla Bridge section (desktop) — định vị carla.exe portable ──
 window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.runtime==='desktop'&&React.createElement('div',{className:'pt-4 mt-4 border-t border-[#383838]'},React.createElement('h4',{className:'text-xs font-bold text-teal-400 uppercase mb-2'},'Carla Bridge (VSTi native GUI)'),React.createElement('p',{className:'text-[10px] text-zinc-500 mb-2 break-all'},window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_path?'Đã định vị: '+window.SonicRuntime.capabilities.features.carla_path:'Chưa tìm thấy Carla. Bản Windows là zip portable (không cài đặt, không dùng PATH) — nhấn "Định vị Carla..." và chọn thư mục chứa carla.exe.'),React.createElement('div',{className:'flex gap-2'},React.createElement('button',{onClick:locateCarla,className:'px-3 py-1.5 bg-teal-800 hover:bg-teal-700 text-white text-xs font-semibold rounded transition flex items-center gap-1'},React.createElement('i',{'data-lucide':'folder-search',className:'w-3 h-3'}),'Định vị Carla...'),window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local&&React.createElement('button',{onClick:()=>{window.SonicAPI.openInCarla().then(function(r){if(r&&r.success)showToast('Đã mở Carla','success');}).catch(function(err){showToast('Lỗi mở Carla: '+(err.message||err),'error');});},className:'px-3 py-1.5 bg-zinc-800 hover:bg-zinc-700 text-teal-300 text-xs font-semibold rounded transition flex items-center gap-1'},React.createElement('i',{'data-lucide':'play',className:'w-3 h-3'}),'Mở Carla')),React.createElement('div',{className:'flex gap-2 mt-2'},React.createElement('input',{type:'text',placeholder:'Hoặc nhập thư mục chứa carla.exe (VD: D:/Tools/Carla)',value:pmCarlaPathInput,onChange:e=>setPmCarlaPathInput(e.target.value),onKeyDown:e=>{if(e.key==='Enter')saveCarlaInput();},className:'flex-1 bg-zinc-800 border border-zinc-700 rounded px-2 py-1.5 text-xs text-zinc-300 focus:outline-none focus:border-teal-600'}),React.createElement('button',{onClick:saveCarlaInput,className:'px-3 py-1.5 bg-zinc-800 hover:bg-zinc-700 text-teal-300 text-xs font-semibold rounded transition shrink-0'},'Lưu'))),// Plugin directories section (folder picker + save + scan)
-React.createElement('div',{className:'pt-4 mt-4 border-t border-[#383838]'},React.createElement('div',{className:'flex items-center justify-between mb-2'},React.createElement('h4',{className:'text-xs font-bold text-zinc-400 uppercase'},'Plugin Directories'),React.createElement('button',{className:'px-3 py-1.5 bg-violet-800 hover:bg-violet-700 text-white text-xs font-semibold rounded transition flex items-center gap-1 shrink-0',title:'Add plugin directory (VST / SoundFont)',onClick:pickPluginFolder},React.createElement('i',{'data-lucide':'plus',className:'w-3 h-3'}),'Add Directory')),pmDirs.length===0&&React.createElement('p',{className:'text-[10px] text-zinc-600 mb-2 italic'},'Chưa có thư mục nào. Nhấn Add Directory để chọn thư mục chứa VST / SoundFont.'),pmDirs.map((dir,idx)=>React.createElement('div',{key:'pdir_'+idx,className:'flex items-center gap-2 mb-1.5 bg-zinc-800/70 border border-zinc-700 rounded px-2 py-1.5'},React.createElement('button',{className:'text-zinc-500 hover:text-red-400 transition shrink-0',title:'Remove directory',onClick:()=>removePluginDir(dir)},React.createElement('i',{'data-lucide':'x',className:'w-3.5 h-3.5'})),React.createElement('span',{className:'flex-1 text-[11px] text-zinc-300 font-mono truncate',title:dir},dir),React.createElement('i',{'data-lucide':'folder',className:'w-3 h-3 text-zinc-600 shrink-0'}))),React.createElement('div',{className:'flex gap-2 items-center mt-2'},React.createElement('button',{className:'px-4 py-2 bg-emerald-800 hover:bg-emerald-700 text-white text-xs font-semibold rounded transition flex items-center gap-1',onClick:saveAndScanDirs},React.createElement('i',{'data-lucide':'search',className:'w-3 h-3'}),'Scan'),pmScanning&&React.createElement('span',{className:'text-[10px] text-emerald-400'},'Scanning...'),pmScanResult&&React.createElement('span',{className:'text-[10px] text-zinc-400'},pmScanResult)),pmScanData&&React.createElement('div',{className:'mt-3 space-y-2 max-h-40 overflow-y-auto'},React.createElement('div',{className:'text-[10px] font-bold text-violet-300 uppercase flex items-center gap-1'},React.createElement('i',{'data-lucide':'cpu',className:'w-3 h-3'}),'VST Instruments ('+pmScanData.vst_found.length+')'),pmScanData.vst_found.length===0?React.createElement('p',{className:'text-[10px] text-zinc-600 italic'},'Không tìm thấy VST.'):pmScanData.vst_found.map((v,i)=>React.createElement('div',{key:'sv_'+i,className:'flex items-center gap-2 text-[11px] text-zinc-300'},React.createElement('span',{className:'w-16 shrink-0 text-zinc-500 font-mono text-[9px] truncate'},v.type||'VST'),React.createElement('span',{className:'truncate'},v.name),React.createElement('span',{className:'text-[9px] text-zinc-600 font-mono truncate ml-auto'},v.dir),window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local&&React.createElement('button',{onClick:()=>{window.SonicAPI.openInCarla(null,v.path).then(function(r){if(r&&r.success)showToast('Đã mở Carla với '+v.name,'success');}).catch(function(err){showToast('Lỗi mở Carla: '+(err.message||err),'error');});},className:'text-[9px] bg-teal-800 hover:bg-teal-700 text-white px-1.5 py-0.5 rounded transition shrink-0',title:'Mở trong Carla (native GUI)'},'🎛'))),React.createElement('div',{className:'text-[10px] font-bold text-amber-300 uppercase flex items-center gap-1 mt-2'},React.createElement('i',{'data-lucide':'music',className:'w-3 h-3'}),'SoundFonts ('+pmScanData.soundfonts.length+')'),pmScanData.soundfonts.length===0?React.createElement('p',{className:'text-[10px] text-zinc-600 italic'},'Không tìm thấy SoundFont.'):pmScanData.soundfonts.map((s,i)=>React.createElement('div',{key:'ss_'+i,className:'flex items-center gap-2 text-[11px] text-zinc-300'},React.createElement('span',{className:'truncate'},s.name),React.createElement('span',{className:'text-[9px] text-zinc-600 font-mono truncate ml-auto'},s.dir))))),// Upload section (bottom of right panel)
+React.createElement('div',{className:'pt-4 mt-4 border-t border-[#383838]'},React.createElement('div',{className:'flex items-center justify-between mb-2'},React.createElement('h4',{className:'text-xs font-bold text-zinc-400 uppercase'},'Plugin Directories'),React.createElement('button',{className:'px-3 py-1.5 bg-violet-800 hover:bg-violet-700 text-white text-xs font-semibold rounded transition flex items-center gap-1 shrink-0',title:'Add plugin directory (VST / SoundFont)',onClick:pickPluginFolder},React.createElement('i',{'data-lucide':'plus',className:'w-3 h-3'}),'Add Directory')),pmDirs.length===0&&React.createElement('p',{className:'text-[10px] text-zinc-600 mb-2 italic'},'Chưa có thư mục nào. Nhấn Add Directory để chọn thư mục chứa VST / SoundFont.'),pmDirs.map((dir,idx)=>React.createElement('div',{key:'pdir_'+idx,className:'flex items-center gap-2 mb-1.5 bg-zinc-800/70 border border-zinc-700 rounded px-2 py-1.5'},React.createElement('button',{className:'text-zinc-500 hover:text-red-400 transition shrink-0',title:'Remove directory',onClick:()=>removePluginDir(dir)},React.createElement('i',{'data-lucide':'x',className:'w-3.5 h-3.5'})),React.createElement('span',{className:'flex-1 text-[11px] text-zinc-300 font-mono truncate',title:dir},dir),React.createElement('i',{'data-lucide':'folder',className:'w-3 h-3 text-zinc-600 shrink-0'}))),React.createElement('div',{className:'flex gap-2 items-center mt-2'},React.createElement('button',{className:'px-4 py-2 bg-emerald-800 hover:bg-emerald-700 text-white text-xs font-semibold rounded transition flex items-center gap-1',onClick:saveAndScanDirs},React.createElement('i',{'data-lucide':'search',className:'w-3 h-3'}),'Scan'),pmScanning&&React.createElement('span',{className:'text-[10px] text-emerald-400'},'Scanning...'),pmScanResult&&React.createElement('span',{className:'text-[10px] text-zinc-400'},pmScanResult)),pmScanData&&React.createElement('div',{className:'mt-3 space-y-2 max-h-40 overflow-y-auto'},React.createElement('div',{className:'text-[10px] font-bold text-violet-300 uppercase flex items-center gap-1'},React.createElement('i',{'data-lucide':'cpu',className:'w-3 h-3'}),'VST Instruments ('+pmScanData.vst_found.length+')'),pmScanData.vst_found.length===0?React.createElement('p',{className:'text-[10px] text-zinc-600 italic'},'Không tìm thấy VST.'):pmScanData.vst_found.map((v,i)=>React.createElement('div',{key:'sv_'+i,className:'flex items-center gap-2 text-[11px] text-zinc-300'},React.createElement('span',{className:'w-16 shrink-0 text-zinc-500 font-mono text-[9px] truncate'},v.type||'VST'),React.createElement('span',{className:'truncate'},v.name),React.createElement('span',{className:'text-[9px] text-zinc-600 font-mono truncate ml-auto'},v.dir),window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local&&React.createElement('button',{onClick:()=>{openNativeVstGui(v.name||v.id,selectedTrackId,v.path,v.type).then(function(r){if(r&&(r.success||typeof r==='string'))showToast('Đã mở GUI với '+v.name,'success');}).catch(function(err){showToast('Lỗi mở VST GUI: '+(err.message||err),'error');});},className:'text-[9px] bg-teal-800 hover:bg-teal-700 text-white px-1.5 py-0.5 rounded transition shrink-0',title:'Mở trong Carla (native GUI)'},'🎛'))),React.createElement('div',{className:'text-[10px] font-bold text-amber-300 uppercase flex items-center gap-1 mt-2'},React.createElement('i',{'data-lucide':'music',className:'w-3 h-3'}),'SoundFonts ('+pmScanData.soundfonts.length+')'),pmScanData.soundfonts.length===0?React.createElement('p',{className:'text-[10px] text-zinc-600 italic'},'Không tìm thấy SoundFont.'):pmScanData.soundfonts.map((s,i)=>React.createElement('div',{key:'ss_'+i,className:'flex items-center gap-2 text-[11px] text-zinc-300'},React.createElement('span',{className:'truncate'},s.name),React.createElement('span',{className:'text-[9px] text-zinc-600 font-mono truncate ml-auto'},s.dir))))),// Upload section (bottom of right panel)
 React.createElement('div',{className:'pt-4 mt-4 border-t border-[#383838]'},React.createElement('h4',{className:'text-xs font-bold text-zinc-400 mb-3 uppercase'},pmTab==='vst'?'Add VST Directory':'Upload SoundFont'),pmTab==='vst'?React.createElement('div',{className:'flex gap-2'},React.createElement('input',{type:'text',placeholder:'/opt/daw_engine/vst3',className:'flex-1 bg-zinc-800 border border-zinc-700 rounded px-3 py-2 text-xs text-zinc-300 focus:outline-none focus:border-violet-600'}),React.createElement('button',{className:'px-4 py-2 bg-violet-800 hover:bg-violet-700 text-white text-xs font-semibold rounded transition',onClick:async()=>{try{const data=await window.SonicAPI.listPlugins();setLocalData(data);showToast('Scanned VST directory.','info');}catch(err){showToast('Scan failed: '+err.message,'error');}}},'Scan')):React.createElement('div',{className:'space-y-2'},React.createElement('label',{className:'flex items-center gap-3 px-4 py-3 border-2 border-dashed border-zinc-700 rounded-lg cursor-pointer hover:border-amber-600/50 bg-zinc-800/40 transition'},React.createElement('i',{'data-lucide':'upload',className:'w-5 h-5 text-zinc-400'}),React.createElement('span',{className:'text-xs text-zinc-400'},'Click to upload .sf2 / .sf3 file'),React.createElement('input',{type:'file',accept:'.sf2,.sf3',onChange:async e=>{const file=e.target.files?.[0];if(!file)return;setSfUploadStatus('Uploading...');try{await window.SonicAPI.uploadSoundFont(file);setSfUploadStatus('Uploaded: '+file.name);const data=await window.SonicAPI.listPlugins();setLocalData(data);}catch(err){setSfUploadStatus('Error: '+err.message);}},className:'hidden'})),sfUploadStatus&&React.createElement('p',{className:'text-[10px] text-zinc-500'},sfUploadStatus)))))),// Status bar at bottom
 React.createElement('div',{className:'px-5 py-2 bg-[#1a1a1a] border-t border-[#383838] flex items-center justify-between text-[10px] text-zinc-500'},React.createElement('span',null,'VST: ',localData?.vst_instruments?.length||0,' | SoundFonts: ',localData?.soundfonts?.length||0),React.createElement('span',null,'Last scanned: ',new Date().toLocaleTimeString())),// Delete confirmation modal
 sfToDelete&&React.createElement('div',{className:'fixed inset-0 z-[60] flex items-center justify-center bg-black/70',onClick:()=>setSfToDelete(null)},React.createElement('div',{className:'bg-[#262626] border border-[#383838] rounded-xl shadow-2xl w-full max-w-sm p-5 text-slate-200',onClick:e=>e.stopPropagation()},React.createElement('h3',{className:'text-sm font-bold text-red-400 mb-3'},'Delete SoundFont?'),React.createElement('p',{className:'text-xs text-zinc-400 mb-1'},'Are you sure you want to delete:'),React.createElement('p',{className:'text-sm font-semibold text-slate-200 mb-4'},sfToDelete.display||sfToDelete.name||sfToDelete.id),React.createElement('div',{className:'flex justify-end gap-2'},React.createElement('button',{onClick:()=>setSfToDelete(null),className:'px-4 py-2 text-xs rounded bg-zinc-700 hover:bg-zinc-600 text-zinc-300 transition'},'Cancel'),React.createElement('button',{onClick:async()=>{try{if(window.SonicAPI.deleteSoundFont){await window.SonicAPI.deleteSoundFont(sfToDelete.id);}const data=await window.SonicAPI.listPlugins();setLocalData(data);setSfToDelete(null);window.showToast&&window.showToast('SoundFont deleted.','info');}catch(err){window.showToast&&window.showToast('Delete failed: '+err.message,'error');setSfToDelete(null);}},className:'px-4 py-2 text-xs rounded bg-red-700 hover:bg-red-600 text-white font-semibold transition'},'Delete')))));};// Module-level so both ProfileModal (open project) and App (auto-restore) can
@@ -464,7 +472,7 @@ limActive:false,limThreshold:0,// neutral: limiter khong tu clip -1dB khi bat
 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% + ${dragOfs.y}px)`,transform:'translate(-50%, -50%)'};return/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",{key:"backdrop",className:"fixed inset-0 z-40 bg-black/70 backdrop-blur-sm",onClick:onClose}),confirmModal&&/*#__PURE__*/React.createElement("div",{key:"confirm-overlay",className:"fixed 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text-xs"},[/*#__PURE__*/React.createElement("div",{key:"username"},[/*#__PURE__*/React.createElement("span",{className:"text-slate-500 block"},"Tên người dùng"),/*#__PURE__*/React.createElement("span",{className:"font-bold text-teal-300 text-sm"},profile.username)]),/*#__PURE__*/React.createElement("div",{key:"role"},[/*#__PURE__*/React.createElement("span",{className:"text-slate-500 block"},"Vai trò"),/*#__PURE__*/React.createElement("span",{className:"uppercase font-semibold text-amber-400"},profile.role)]),/*#__PURE__*/React.createElement("div",{key:"email"},[/*#__PURE__*/React.createElement("span",{className:"text-slate-500 block"},"Email"),/*#__PURE__*/React.createElement("span",null,profile.email)]),/*#__PURE__*/React.createElement("div",{key:"quota"},[/*#__PURE__*/React.createElement("span",{className:"text-slate-500 block"},"Dung lượng Quota"),/*#__PURE__*/React.createElement("span",{className:"font-semibold text-slate-200"},`${profile.quota.used_mb} MB / 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Cloud."):/*#__PURE__*/React.createElement(React.Fragment,{key:"list"},[/*#__PURE__*/React.createElement("div",{key:"backup-config-bar",className:"flex items-center justify-between bg-zinc-900/60 p-2 rounded border border-zinc-800 mb-2 text-xs"},[/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2"},[/*#__PURE__*/React.createElement("span",{className:"text-zinc-400 text-[10px]"},"⚙️ Tự động lưu 5 phút / Backup 30 phút"),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();setShowBackupConfig(!showBackupConfig);},className:"px-2 py-0.5 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 rounded text-[10px] border border-zinc-700"},showBackupConfig?"ẨN":"CẤU HÌNH")]),/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();handleCleanupBackups();},className:"px-2 py-0.5 bg-amber-800 hover:bg-amber-700 text-amber-200 rounded text-[10px] border border-amber-700"},"🧹 DỌN BACKUP")]),showBackupConfig&&/*#__PURE__*/React.createElement("div",{key:"backup-config-detail",className:"bg-[#18181b] border border-zinc-800 rounded p-3 mb-2 text-xs"},[/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between mb-2"},[/*#__PURE__*/React.createElement("label",{className:"text-zinc-300 font-semibold"},"Số bản backup tối đa:"),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2"},[/*#__PURE__*/React.createElement("input",{type:"range",min:5,max:20,value:backupMaxCount,onChange:e=>{const v=parseInt(e.target.value);setBackupMaxCount(v);localStorage.setItem('sonic_backup_max_count',v.toString());},className:"w-24 accent-amber-500"}),/*#__PURE__*/React.createElement("span",{className:"text-amber-400 font-bold w-6 text-center"},backupMaxCount)])]),/*#__PURE__*/React.createElement("p",{className:"text-[10px] text-zinc-500"},"Mỗi dự án sẽ giữ tối đa số bản backup này. Backup cũ nhất sẽ tự động bị xóa khi vượt quá giới hạn.")]),/*#__PURE__*/React.createElement("div",{className:"space-y-1.5"},projectsList.map(proj=>/*#__PURE__*/React.createElement("div",{key:proj.id},[/*#__PURE__*/React.createElement("div",{onClick:()=>handleOpenProject(proj.id),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"},[/*#__PURE__*/React.createElement("div",{key:"meta"},[/*#__PURE__*/React.createElement("div",{className:"font-bold text-slate-200 group-hover:text-teal-400"},proj.name),/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500 mt-0.5"},[`Dung lượng: ${proj.size_mb} MB | Cập nhật: ${new Date(proj.updated_at*1000).toLocaleString()}`,proj.backup_count>0&&` | Backup: ${proj.backup_count}`])]),/*#__PURE__*/React.createElement("div",{key:"actions",className:"flex items-center 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bg-[#161618] rounded-b p-2 mb-1"},[loadingBackups[proj.id]?/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500 py-2 text-center"},"Đang tải..."):!backupsMap[proj.id]||backupsMap[proj.id].length===0?/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500 py-2 text-center"},"Chưa có bản backup nào."):/*#__PURE__*/React.createElement("div",{className:"space-y-1 max-h-48 overflow-y-auto"},backupsMap[proj.id].map(b=>/*#__PURE__*/React.createElement("div",{key:b.id,className:"flex items-center justify-between py-1.5 px-2 bg-[#1e1e22] rounded border border-zinc-800"},[/*#__PURE__*/React.createElement("div",{key:"info",className:"flex-1 min-w-0"},[/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-300 truncate"},b.name),/*#__PURE__*/React.createElement("div",{className:"text-[9px] text-zinc-500 mt-0.5"},`${b.size_mb} MB | ${new 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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items-center justify-between px-2 py-1.5 rounded cursor-pointer text-xs border transition "+(isSelected?'bg-amber-950/60 border-amber-600 text-amber-300':'bg-[#1e1e1e] hover:bg-zinc-800 border-transparent text-slate-300')},[/*#__PURE__*/React.createElement("span",{key:"n",className:"font-semibold truncate"},p.name),/*#__PURE__*/React.createElement("span",{key:"t",className:"text-[9px] text-zinc-500 shrink-0 ml-2"},isExactMatch?"S\u1EBD ghi \u0111\u00E8":"Ch\u1ECDn")]);})),/*#__PURE__*/React.createElement("div",{key:"actions",className:"flex justify-end gap-2 text-xs"},[/*#__PURE__*/React.createElement("button",{key:"cancel",type:"button",onClick:onClose,className:"px-3 py-1.5 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 rounded"},"H\u1EE7y"),selectedExisting?/*#__PURE__*/React.createElement("button",{key:"back",type:"button",onClick:function(){setName('');setSelectedExisting(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"):null,/*#__PURE__*/React.createElement("button",{key:"save",type:"submit",className:"px-3 py-1.5 bg-teal-600 hover:bg-teal-500 text-white rounded font-semibold"},selectedExisting?"Ghi \u0111\u00E8":"L\u01B0u")])])));};const OpenProjectModal=({isOpen,onClose,onOpenCloud,onOpenLocal})=>{if(!isOpen)return null;const[tab,setTab]=useState('cloud');const[projects,setProjects]=useState([]);const[loading,setLoading]=useState(false);React.useEffect(function(){if(!isOpen)return;if(tab==='cloud'){setLoading(true);var api=window.SonicAPI;if(api&&api.listCloudProjects){api.listCloudProjects().then(function(data){setProjects(data||[]);}).catch(function(){setProjects([]);}).finally(function(){setLoading(false);});}else{setLoading(false);}}},[isOpen,tab]);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-xl shadow-2xl w-full max-w-lg 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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As...)"),/*#__PURE__*/React.createElement("form",{onSubmit:handleSubmit,className:"space-y-4"},[/*#__PURE__*/React.createElement("div",{key:"name-block"},[/*#__PURE__*/React.createElement("label",{className:"block text-[10px] text-zinc-400 uppercase font-bold mb-1"},"Tên dự án mới"),/*#__PURE__*/React.createElement("input",{type:"text",placeholder:"Nhập tên mới...",required:true,value:name,onChange:e=>setName(e.target.value),className:"w-full bg-[#1e1e1e] border border-[#383838] rounded px-3 py-1.5 text-xs text-slate-200 focus:outline-none focus:border-teal-500 font-bold",autoFocus:true})]),/*#__PURE__*/React.createElement("div",{key:"type-block"},[/*#__PURE__*/React.createElement("label",{className:"block text-[10px] text-zinc-400 uppercase font-bold mb-1.5"},"Phương thức lưu trữ"),/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-2 gap-2 text-xs"},[/*#__PURE__*/React.createElement("button",{key:"btn-cloud",type:"button",onClick:()=>setSaveType('cloud'),className:`py-2 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danh sách người dùng hệ thống');}finally{setLoading(false);}};const handleSaveQuota=async userId=>{try{await window.SonicAPI.updateUserQuota(userId,parseInt(newQuotaMb));setMsg('Đã cập nhật hạn mức Quota thành công!');setEditingQuotaUser(null);loadUsers();}catch(err){setError(err.message||'Lỗi cập nhật Quota');}};const handleToggleRole=async user=>{const nextRole=user.role==='admin'?'standard':'admin';try{await window.SonicAPI.updateUserRole(user.id,nextRole,user.is_active);setMsg(`Đã đổi vai trò người dùng ${user.username} thành ${nextRole}`);loadUsers();}catch(err){setError(err.message||'Lỗi cập nhật vai trò');}};const handleDeleteUser=async userId=>{if(!confirm('Bạn có chắc chắn muốn xóa người dùng này khỏi hệ thống?'))return;try{await window.SonicAPI.deleteUser(userId);setMsg('Đã xóa người dùng thành công');loadUsers();}catch(err){setError(err.message||'Lỗi khi xóa người dùng');}};return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-50 flex items-center 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    ABOUT / HELP / PREFERENCES MODALS (menu Help + Tools → Preferences)
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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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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. 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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
@@ -501,7 +509,7 @@ 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)){if(!_routePreviewNote(pvTrk&&pvTrk.id,pvCtx,n.pitch,n.velocity||0.8,200,'PLAYING_TICK')){window.SonicSF.playNote(n.pitch,(n.velocity||0.8)*127,200,ctx.currentTime,pvCtx.program,null,pvCtx.ch,pvCtx.synthEngine);}return;}window.SonicSF.playNote(n.pitch,(n.velocity||0.8)*127,200,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=resolveSubTabInstrumentCtx(st,pvTrk,activeTracks);ensureSonicInstrument(pvCtx);playing.forEach(n=>{if(isStandaloneSf()&&isSfTrackEngine(pvCtx.synthEngine)&&!shouldRouteCarla(pvCtx.synthEngine)){if(!_routePreviewNote(pvTrk&&pvTrk.id,pvCtx,n.pitch,n.velocity||0.8,200,'PLAYING_TICK')){window.SonicSF.playNote(n.pitch,(n.velocity||0.8)*127,200,ctx.currentTime,pvCtx.program,null,pvCtx.ch,pvCtx.synthEngine);}return;}window.SonicSF.playNote(n.pitch,(n.velocity||0.8)*127,200,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
@@ -527,7 +535,7 @@ 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)){if(!_routePreviewNote(clTrk&&clTrk.id,clCtx,notes[clickedNoteIdx].pitch,notes[clickedNoteIdx].velocity||0.8,300,'CLICK')){window.SonicSF.playNote(notes[clickedNoteIdx].pitch,100,300,ctx.currentTime,clCtx.program,null,clCtx.ch,clCtx.synthEngine);}}else{window.SonicSF.playNote(notes[clickedNoteIdx].pitch,100,300,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=resolveSubTabInstrumentCtx(st,clTrk,activeTracks);ensureSonicInstrument(clCtx);if(isStandaloneSf()&&isSfTrackEngine(clCtx.synthEngine)&&!shouldRouteCarla(clCtx.synthEngine)){if(!_routePreviewNote(clTrk&&clTrk.id,clCtx,notes[clickedNoteIdx].pitch,notes[clickedNoteIdx].velocity||0.8,300,'CLICK')){window.SonicSF.playNote(notes[clickedNoteIdx].pitch,100,300,ctx.currentTime,clCtx.program,null,clCtx.ch,clCtx.synthEngine);}}else{window.SonicSF.playNote(notes[clickedNoteIdx].pitch,100,300,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
@@ -542,15 +550,15 @@ 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 dwCtx=resolveTrackInstrumentCtx(dwTrk,activeTracks);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)){if(!_routePreviewNote(dwTrk&&dwTrk.id,dwCtx,dwPitch,brushVelocityRef.current||0.8,dwDurMs,'DRAW')){if(window.SonicSF&&window.SonicSF.playNote){const ctx=getAudioContext();window.SonicSF.playNote(dwPitch,Math.round(brushVelocityRef.current*127),dwDurMs,ctx.currentTime,dwTrk?dwTrk.instrumentProgram:undefined,null,dwCh,dwTrk?dwTrk.synth_engine:undefined);}}}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 dwCtx=resolveSubTabInstrumentCtx(st,dwTrk,activeTracks);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(dwCtx.synthEngine)&&!shouldRouteCarla(dwCtx.synthEngine)){if(!_routePreviewNote(dwTrk&&dwTrk.id,dwCtx,dwPitch,brushVelocityRef.current||0.8,dwDurMs,'DRAW')){if(window.SonicSF&&window.SonicSF.playNote){const ctx=getAudioContext();window.SonicSF.playNote(dwPitch,Math.round(brushVelocityRef.current*127),dwDurMs,ctx.currentTime,dwCtx.program,null,dwCh,dwCtx.synthEngine);}}}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).
-window.SonicSF.playNote(dwPitch,Math.round(brushVelocityRef.current*127),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
+window.SonicSF.playNote(dwPitch,Math.round(brushVelocityRef.current*127),dwDurMs,ctx.currentTime,dwCtx.program,null,dwCh,dwCtx.synthEngine);}}};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
 return n.start_beat<=maxBeat&&noteEnd>=minBeat;}else{// Right to left: select only if fully covered
 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)){if(!_routePreviewNote(pvTrk&&pvTrk.id,pvCtxInst,p,brushVelocityRef.current||0.8,durMs,'DRAW')){if(window.SonicSF&&window.SonicSF.playNote){var pvCtx=getAudioContext();var pvVel=Math.round(brushVelocityRef.current*127);window.SonicSF.playNote(p,pvVel,durMs,pvCtx.currentTime,pvCtxInst.program,null,pvCtxInst.ch,pvCtxInst.synthEngine);previewPitchRef.current=p;}}}else if(window.SonicSF&&window.SonicSF.playNote){var pvCtx=getAudioContext();var pvVel=Math.round(brushVelocityRef.current*127);// 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=resolveSubTabInstrumentCtx(st,pvTrk,activeTracks);if(isStandaloneSf()&&isSfTrackEngine(pvCtxInst.synthEngine)&&!shouldRouteCarla(pvCtxInst.synthEngine)){if(!_routePreviewNote(pvTrk&&pvTrk.id,pvCtxInst,p,brushVelocityRef.current||0.8,durMs,'DRAW')){if(window.SonicSF&&window.SonicSF.playNote){var pvCtx=getAudioContext();var pvVel=Math.round(brushVelocityRef.current*127);window.SonicSF.playNote(p,pvVel,durMs,pvCtx.currentTime,pvCtxInst.program,null,pvCtxInst.ch,pvCtxInst.synthEngine);previewPitchRef.current=p;}}}else if(window.SonicSF&&window.SonicSF.playNote){var pvCtx=getAudioContext();var pvVel=Math.round(brushVelocityRef.current*127);// playNote (FluidSynth — nhạc cụ THẬT). _playNoteFallback = oscillator
 // beep sai âm (percussion/soundfont).
 window.SonicSF.playNote(p,pvVel,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
@@ -562,7 +570,7 @@ const prKeyStateRef=React.useRef({shift:false,ctrl:false});const prMouseInRef=Re
 // (trước đây findCCNoteIndex chỉ trả 1 note → chord khó draw).
 const findCCNoteIndicesAtBeat=b=>{const snapped=getSnapBeat(b,snapValue);const out=[];notes.forEach((n,idx)=>{if(Math.abs(n.start_beat-snapped)<0.01)out.push(idx);});return out;};const handleCCMouseDown=e=>{const canvas=ccCanvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const h=rect.height;const beat=x/pixelsPerBeat-renderBeatOffset;const noteIdx=findCCNoteIndex(beat,y,h);const val=Math.max(0,Math.min(1,(h-y)/h));if(e.ctrlKey){if(selectedNoteIds.length>0){const cursorNoteIdx=findCCNoteIndex(beat,y,h);if(cursorNoteIdx!==-1&&selectedNoteIds.includes(notes[cursorNoteIdx]?notes[cursorNoteIdx].id:-1)){const currentNote=notes[cursorNoteIdx];const currentVal=ccMode==='pan'?(currentNote.pan||0)/2.0+0.5:currentNote.velocity!==undefined?currentNote.velocity:0.8;if(Math.abs(currentVal-val)>0.001){const updatedNotes=notes.map((n,i)=>{if(i!==cursorNoteIdx)return n;if(ccMode==='pan')return{...n,pan:(val-0.5)*2.0};return{...n,velocity:val};});setNotes(updatedNotes);if(isPlaying&&onRescheduleMidi)onRescheduleMidi(updatedNotes);}ccDragRef.current={active:true,lastBeat:beat,selectedMode:true,lastPainted:[cursorNoteIdx]};}else{ccDragRef.current={active:true,lastBeat:beat,selectedMode:true,lastPainted:[]};}}else{// Không chọn notes: vẽ TẤT CẢ notes cùng beat (chord — user 08:25)
 const idxs=findCCNoteIndicesAtBeat(beat);ccDragRef.current={active:true,lastBeat:beat,lastPainted:idxs};}return;}if(noteIdx!==-1){const currentVal=ccMode==='pan'?(notes[noteIdx].pan||0)/2.0+0.5:notes[noteIdx].velocity!==undefined?notes[noteIdx].velocity:0.8;if(Math.abs(currentVal-val)>0.001){const updatedNotes=notes.map((n,i)=>{if(i!==noteIdx)return n;if(ccMode==='pan')return{...n,pan:(val-0.5)*2.0};return{...n,velocity:val};});setNotes(updatedNotes);if(isPlaying&&onRescheduleMidi)onRescheduleMidi(updatedNotes);}}};const handleCCMouseMove=e=>{if(!ccDragRef.current||!ccDragRef.current.active)return;const canvas=ccCanvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const h=rect.height;const beat=x/pixelsPerBeat-renderBeatOffset;const val=Math.max(0,Math.min(1,(h-y)/h));const drag=ccDragRef.current;const painted=drag.lastPainted||[];if(drag.selectedMode&&selectedNoteIds.length>0){const cursorNoteIdx=findCCNoteIndex(beat,y,h);if(cursorNoteIdx!==-1){const cursorNote=notes[cursorNoteIdx];if(cursorNote&&selectedNoteIds.includes(cursorNote.id)&&!painted.includes(cursorNoteIdx)){const currentVal=ccMode==='pan'?(cursorNote.pan||0)/2.0+0.5:cursorNote.velocity!==undefined?cursorNote.velocity:0.8;if(Math.abs(currentVal-val)>0.001){const updatedNotes=notes.map((n,i)=>{if(i!==cursorNoteIdx)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,cursorNoteIdx];}}return;}// Vẽ TẤT CẢ notes cùng beat (chord — user 08:25) — trước đây chỉ 1 note
-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 ${activeMidiPitches&&activeMidiPitches.has(pitch)?'bg-emerald-500 text-white border-emerald-400':isBlack?'bg-zinc-950 text-slate-500 border-zinc-900 hover:bg-zinc-800':'bg-white text-zinc-800 border-r border-zinc-400 hover:bg-amber-100'}`,onMouseDown:e=>{e.stopPropagation();keybedMouseDownRef.current=true;try{// Đồng bộ mastering + routing SF NGAY trước khi preview — âm
+const candidateIdxs=findCCNoteIndicesAtBeat(beat);const unpainted=candidateIdxs.filter(ci=>!painted.includes(ci));if(unpainted.length>0){const updatedNotes=notes.map((n,i)=>{if(!unpainted.includes(i))return n;if(ccMode==='pan')return{...n,pan:(val-0.5)*2.0};return{...n,velocity:val};});setNotes(updatedNotes);if(isPlaying&&onRescheduleMidi)onRescheduleMidi(updatedNotes);drag.lastPainted=[...painted,...unpainted];}};const renderKeybed=()=>{var kbTrk=activeTracks.find(function(t){return t.id===st.trackId;});var kbCtx=resolveSubTabInstrumentCtx(st,kbTrk,activeTracks);ensureSonicInstrument(kbCtx);const keys=[];for(let pitch=127;pitch>=PITCH_START;pitch--){const isBlack=[1,3,6,8,10].includes(pitch%12);const notesArray=['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];const octave=Math.floor(pitch/12)-1;const label=`${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);if(kbNative){if(!_routeNoteOn(kbTrk&&kbTrk.id,kbCtx,pitch,100/127,5000,'KEYBED')){window.SonicSF.playNote(pitch,100,5000,undefined,kbCtx.program,null,kbCtx.ch,kbCtx.synthEngine);}}else if(window.SonicSF){// ⚠️ FIX: giữ note theo thời gian bấm phím — durationMs lớn (5s)
@@ -634,7 +642,7 @@ 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).
-return{hx:Math.max(0,Math.min((canvasRef.current?canvasRef.current.clientWidth:460)-268,st.current.hudPos.hx)),hy:Math.max(0,Math.min((canvasRef.current?canvasRef.current.clientHeight:240)-225,st.current.hudPos.hy))};}if(!sel)return null;const nx=eqproFreqToX(sel.freq,cvW),ny=eqproGainToY(sel.gain,cvH);let hx=nx-130,hy=ny-195;if(hx<8)hx=8;if(hx>cvW-268)hx=cvW-268;if(hy<8)hy=ny+24;return{hx,hy};})();return/*#__PURE__*/React.createElement("div",{className:"space-y-2"},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between text-[11px] font-mono"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-3"},/*#__PURE__*/React.createElement("span",{className:"text-slate-400"},"Bands: ",/*#__PURE__*/React.createElement("span",{className:"text-teal-300 font-bold"},st.current.bands.length),"/8"),/*#__PURE__*/React.createElement("label",{className:"flex items-center gap-1.5"},/*#__PURE__*/React.createElement("span",{className:"text-slate-400"},"Amount:"),/*#__PURE__*/React.createElement("input",{type:"range",min:0,max:200,value:st.current.amount,onChange:e=>{st.current.amount=parseInt(e.target.value);applyAll(mm=>mm.setAmount(st.current.amount));commit();setTick(t=>t+1);},className:"w-20 h-1 cursor-pointer",style:{accentColor:'#2dd4bf'}}),/*#__PURE__*/React.createElement("span",{className:"text-teal-300 font-bold w-10"},st.current.amount,"%"))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("button",{onClick:()=>{const s=st.current;s.bands=JSON.parse(JSON.stringify(EQPRO_DEFAULT_BANDS));s.selected=null;applyAll(mm=>mm.syncBands(s.bands));commit();setTick(t=>t+1);},className:"px-2 py-1 bg-slate-800 hover:bg-red-900/60 text-slate-300 border border-slate-700 rounded text-[10px]"},"Reset"),/*#__PURE__*/React.createElement("button",{onClick:()=>{const s=st.current;if(s.bands.length>=EQPRO_MAX_BANDS)return;s.bands.push({type:'peaking',freq:1000,gain:0,q:1.0,active:true});s.selected=s.bands.length-1;applyAll(mm=>mm.syncBands(s.bands));commit();setTick(t=>t+1);},className:"px-2 py-1 bg-teal-900/50 hover:bg-teal-800 text-teal-300 border border-teal-700 rounded text-[10px]"},"+ Band"))),/*#__PURE__*/React.createElement("div",{className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,className:"w-full h-60 block cursor-crosshair rounded-lg border border-slate-800 bg-slate-950",onPointerDown:onDown,onPointerMove:onMove,onPointerUp:onUp,onWheel:onWheel,onDoubleClick:onDblClick}),sel&&hudXY&&/*#__PURE__*/React.createElement("div",{className:"absolute z-10 w-64 rounded-xl p-3 text-[11px] font-mono space-y-2 pointer-events-auto cursor-move",style:{left:hudXY.hx,top:hudXY.hy,background:'rgba(15,23,42,0.94)',border:'1px solid rgba(45,212,191,0.3)',boxShadow:'0 10px 30px 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 // MASTERING MODAL COMPONENT (from md/45_MASTERING_MODULE.md)
 // ──────────────────────────────────────────────
 const MasteringModal=({isOpen,onClose,masteringSettings,setMasteringSettings})=>{const ozState=masteringSettings;const setOzState=setMasteringSettings;const[isPlaying,setIsPlaying]=React.useState(false);const masterConnected=ozState.masterConnected;const setMasterConnected=val=>{setOzState(prev=>({...prev,masterConnected:typeof val==='function'?val(prev.masterConnected):val}));};const audioRef=React.useRef({source:null});const eqCanvasRef=React.useRef(null);const imagerCanvasRef=React.useRef(null);const inMeterCanvasRef=React.useRef(null);const outMeterCanvasRef=React.useRef(null);const animFrameRef=React.useRef(null);const lufsAccRef=React.useRef([]);const knobsInitializedRef=React.useRef(false);// Wave Observer Refs & States
@@ -691,7 +699,7 @@ const MODULE_META={eq:{name:'Dynamic EQ',sub:'4-Band Peak',icon:'activity',color
 const flags={};chain.forEach(m=>{flags[chainFlag(m.type)]=!!m.active;});const activeModule=prev.activeModule;return{...prev,chain,...flags,activeModule:chain.some(m=>m.type===activeModule)?activeModule:chain[chain.length-1].type};});};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 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]
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text-slate-400"},m.d)))))));};// ── Media Explorer Panel (from md/51_MEDIA_EXPLORER.md) ──
 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 }
@@ -743,7 +751,9 @@ let pvCh=0;if(curInst&&window.SonicSF.applyAITrackInstrument){try{pvCh=window.So
 if(selectTokenRef.current!==(token||selectTokenRef.current))return;const prog=curInst&&curInst.program!==undefined?curInst.program:undefined;const eng=curInst?{soundfont_id:sfId,soundfont_bank:bank,soundfont_program:prog!==undefined?prog:0}:undefined;const totalSec=midiResult[0].duration||4;const totalBeats=midiResult[0].totalBeats||16;const hasSelection=selStart!==null&&selEnd!==null&&Math.abs(selStart-selEnd)>0.01;const loopStartBeats=hasSelection?Math.min(selStart,selEnd):0;const loopEndBeats=hasSelection?Math.max(selStart,selEnd):totalBeats;const loopDurationBeats=loopEndBeats-loopStartBeats;const loopDurationSec=loopDurationBeats*secondsPerBeat;const loopStartSec=loopStartBeats*secondsPerBeat;const allNotes=[];midiResult.forEach(track=>{(track.notes||[]).forEach(note=>{allNotes.push(Object.assign({},note,{trackOffset:track.startTime||0}));});});// Standalone + instrument soundfont → render CẢ FILE bằng native
 // FluidSynth (backend) → play WAV (loop theo flag/lựa chọn), bỏ per-note
 // WASM (WASM không phải luồng âm của standalone).
-if(isStandaloneSf()&&sfId){const nativeNotes=allNotes.filter(note=>!(hasSelection&&((note.start_beat||0)<loopStartBeats||(note.start_beat||0)>=loopEndBeats))).map(note=>{const shiftedStartBeat=hasSelection?(note.start_beat||0)-loopStartBeats:note.start_beat||0;return{pitch:note.pitch||60,start_beat:shiftedStartBeat+(note.trackOffset||0)/secondsPerBeat,duration_beats:note.duration_beats||1,velocity:note.velocity!=null?note.velocity:0.8};});if(nativeNotes.length){window.SonicAPI.soundfontRender({soundfont_id:sfId,bank:bank,program:prog!==undefined?prog:0,bpm:bpmVal,notes:nativeNotes}).then(function(res){if(!res||!res.success||!res.url)return;if(selectTokenRef.current!==(token||selectTokenRef.current))return;const audio=new Audio(API_BASE_URL+res.url);audio.loop=!!isLoopingRef.current;if(_midiFilePreviewAudio){try{_midiFilePreviewAudio.pause();}catch(e){}}_midiFilePreviewAudio=audio;audio.play().catch(function(){});});}const startedAtTime=startWallTime-loopStartSec;playStateRef.current={source:null,ctx,startedAt:startedAtTime,fakeStart:startedAtTime,midiTotal:totalSec};setMidiNotes(allNotes);setMidiTotal(totalSec);setMidiBars(midiResult[0].bars||1);setMidiTotalBeats(midiResult[0].totalBeats||16);setMidiFileBpm(midiResult[0].bpm||120);setIsPlaying(true);setIsPaused(false);startCanvasClock();return;}const schedulePass=passStartTime=>{allNotes.forEach(note=>{const noteStartBeat=note.start_beat||0;if(hasSelection){if(noteStartBeat<loopStartBeats||noteStartBeat>=loopEndBeats)return;}const shiftedStartBeat=hasSelection?noteStartBeat-loopStartBeats:noteStartBeat;const startSec=shiftedStartBeat*secondsPerBeat+(note.trackOffset||0);const durMs=Math.max(80,(note.duration_beats||1)*secondsPerBeat*1000);window.SonicSF.playNote(note.pitch||60,note.velocity||0.8,durMs,passStartTime+startSec,prog,null,pvCh,eng);});};schedulePass(startWallTime);// Loop scheduling: keep looping continuously until Stop is pressed.
+if(isStandaloneSf()&&sfId){const nativeNotes=allNotes.filter(note=>!(hasSelection&&((note.start_beat||0)<loopStartBeats||(note.start_beat||0)>=loopEndBeats))).map(note=>{const shiftedStartBeat=hasSelection?(note.start_beat||0)-loopStartBeats:note.start_beat||0;return{pitch:note.pitch||60,start_beat:shiftedStartBeat+(note.trackOffset||0)/secondsPerBeat,duration_beats:note.duration_beats||1,velocity:note.velocity!=null?note.velocity:0.8};});if(nativeNotes.length){window.SonicAPI.soundfontRender({soundfont_id:sfId,bank:bank,program:prog!==undefined?prog:0,bpm:bpmVal,notes:nativeNotes}).then(async function(res){if(!res||!res.success||!res.url)return;if(selectTokenRef.current!==(token||selectTokenRef.current))return;// Preview qua masterBus (mastering FX main out khi chain bat; nguoc
+// lai qua dryInput) — truoc day new Audio() ra thang loa.
+try{const resp=await fetch(API_BASE_URL+res.url);const arrBuf=await resp.arrayBuffer();const ctx2=getAudioContext();const decoded=await ctx2.decodeAudioData(arrBuf);if(selectTokenRef.current!==(token||selectTokenRef.current))return;const src=ctx2.createBufferSource();src.buffer=decoded;src.loop=!!isLoopingRef.current;const g=ctx2.createGain();src.connect(g);const mb=window.masterBus;if(mb&&mb.input&&mb.dryInput){g.connect(masteringChainOn()?mb.input:mb.dryInput);}else{g.connect(ctx2.destination);}if(_midiFilePreviewAudio){try{if(_midiFilePreviewAudio.stop)_midiFilePreviewAudio.stop();else _midiFilePreviewAudio.pause();}catch(e){}}_midiFilePreviewAudio=src;src.start();}catch(e){console.error('MIDI preview audio failed',e);}});}const startedAtTime=startWallTime-loopStartSec;playStateRef.current={source:null,ctx,startedAt:startedAtTime,fakeStart:startedAtTime,midiTotal:totalSec};setMidiNotes(allNotes);setMidiTotal(totalSec);setMidiBars(midiResult[0].bars||1);setMidiTotalBeats(midiResult[0].totalBeats||16);setMidiFileBpm(midiResult[0].bpm||120);setIsPlaying(true);setIsPaused(false);startCanvasClock();return;}const schedulePass=passStartTime=>{allNotes.forEach(note=>{const noteStartBeat=note.start_beat||0;if(hasSelection){if(noteStartBeat<loopStartBeats||noteStartBeat>=loopEndBeats)return;}const shiftedStartBeat=hasSelection?noteStartBeat-loopStartBeats:noteStartBeat;const startSec=shiftedStartBeat*secondsPerBeat+(note.trackOffset||0);const durMs=Math.max(80,(note.duration_beats||1)*secondsPerBeat*1000);window.SonicSF.playNote(note.pitch||60,note.velocity||0.8,durMs,passStartTime+startSec,prog,null,pvCh,eng);});};schedulePass(startWallTime);// Loop scheduling: keep looping continuously until Stop is pressed.
 if(loopTimerRef.current){clearInterval(loopTimerRef.current);loopTimerRef.current=null;}if(isLoopingRef.current){loopTimerRef.current=setInterval(()=>{if(selectTokenRef.current!==(token||selectTokenRef.current)){clearInterval(loopTimerRef.current);loopTimerRef.current=null;return;}if(!isPlayingRef.current||isPausedRef.current)return;if(!isLoopingRef.current){clearInterval(loopTimerRef.current);loopTimerRef.current=null;return;}const passStart=ctx.currentTime+0.05;schedulePass(passStart);playStateRef.current=Object.assign({},playStateRef.current,{startedAt:passStart,fakeStart:passStart});},Math.max(200,loopDurationSec*1000));}// Keep a fake clock so canvas playhead animates; loop uses playStateRef
 const startedAtTime=startWallTime-loopStartSec;playStateRef.current={source:null,ctx,startedAt:startedAtTime,fakeStart:startedAtTime,midiTotal:totalSec};setMidiNotes(allNotes);setMidiTotal(totalSec);setMidiBars(midiResult[0].bars||1);setMidiTotalBeats(midiResult[0].totalBeats||16);setMidiFileBpm(midiResult[0].bpm||120);setIsPlaying(true);setIsPaused(false);startCanvasClock();}catch(e){console.error('MIDI preview failed',e);}};const stopMediaPlayback=React.useCallback(()=>{if(playStateRef.current){try{if(playStateRef.current.source)playStateRef.current.source.stop();}catch(e){}try{if(playStateRef.current.source)playStateRef.current.source.disconnect();}catch(e){}playStateRef.current=null;}if(rafRef.current)cancelAnimationFrame(rafRef.current);rafRef.current=null;if(loopTimerRef.current){clearInterval(loopTimerRef.current);loopTimerRef.current=null;}_stopMidiFilePreview();if(window.SonicSF&&typeof window.SonicSF.stopAll==='function'){try{window.SonicSF.stopAll();}catch(e){}}setIsPlaying(false);setIsPaused(false);},[]);// F6 close / panel bị ẩn (display:none — KHÔNG unmount) → tắt preview âm
 // thanh (trước đây preview tiếp tục phát sau khi đóng Media Explorer).
@@ -770,7 +780,7 @@ isLoopingRef.current=next;const cur=selectedRef.current;const st=playStateRef.cu
 // the loop points to the current selection so it loops continuously
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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)))));};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
@@ -1491,11 +1501,13 @@ if(routeToCarla)scheduleCarlaNote(track.synth_engine,lcCh,note.pitch||60,note.ve
 // phải chơi ĐÚNG instrument đó. ensureSonicInstrument select channel đúng
 // trước khi notes bắn (fire-and-forget — playNote tự load+retry nếu SF
 // chưa xong).
-const instCtx=resolveTrackInstrumentCtx(track,activeTracksRef.current||[]);const instrumentProgram=instCtx.program;const synthEngine=instCtx.synthEngine;const mainCh=instCtx.ch;var allTracks=activeTracksRef.current||[];ensureSonicInstrument(instCtx);console.log('[Play] PianoRoll schedule:',st.id,'| notes=',midiNotes.length,'| track=',st.trackId,'| program=',instrumentProgram,'| sf=',instCtx.sfId?instCtx.sfId:'-','| dest=',destNode?'ok':'null','| ch=',mainCh,'| sfEngine=',synthEngine?'yes':'no','| bypassA=',!!trackAudioBypassMap[st.trackId],'| bypassMidi=',!!trackMidiBypassMap[st.trackId]);// 0 = item start. Notes must be scheduled relative to the item too, otherwise
+const instCtx=resolveSubTabInstrumentCtx(st,track,activeTracksRef.current||[]);const instrumentProgram=instCtx.program;const synthEngine=instCtx.synthEngine;const mainCh=instCtx.ch;var allTracks=activeTracksRef.current||[];ensureSonicInstrument(instCtx);console.log('[Play] PianoRoll schedule:',st.id,'| notes=',midiNotes.length,'| track=',st.trackId,'| program=',instrumentProgram,'| sf=',instCtx.sfId?instCtx.sfId:'-','| dest=',destNode?'ok':'null','| ch=',mainCh,'| sfEngine=',synthEngine?'yes':'no','| bypassA=',!!trackAudioBypassMap[st.trackId],'| bypassMidi=',!!trackMidiBypassMap[st.trackId]);// 0 = item start. Notes must be scheduled relative to the item too, otherwise
 // 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)){scheduleNativeSfItem(track,{startTime:0,notes:midiNotes},offsetSeconds,context,destNode,bpm,{sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});return;// native render cả tab → audio buffer (không per-note WASM/Carla)
+const routeCarla=shouldRouteCarla(synthEngine);if(isStandaloneSf()&&!routeCarla&&isSfTrackEngine(synthEngine)){// synthEngine co the la instrument cua CHINH TAB (resolveSubTabInstrumentCtx)
+// — pseudo-track de scheduleNativeSfItem render dung SF cua tab.
+const nativeTrack=synthEngine?Object.assign({},track,{synth_engine:synthEngine}):track;scheduleNativeSfItem(nativeTrack,{startTime:0,notes:midiNotes},offsetSeconds,context,destNode,bpm,{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){if(!_routePreviewNote(track.id,_makeCtx(mainCh,instrumentProgram,synthEngine,destNode),note.pitch||60,note.velocity||0.8,durMs,'TIMELINE_SCHEDULER',scheduledTime)&&window.SonicSF){window.SonicSF.playNote(note.pitch||60,note.velocity||0.8,durMs,scheduledTime,instrumentProgram,destNode,mainCh,synthEngine);}}// MIDI items → Carla (track VSTi + Carla local): phát VSTi realtime
@@ -1578,7 +1590,7 @@ const parseMidiFile=arrayBuffer=>{const data=new Uint8Array(arrayBuffer);if(data
 // ── Resolve Media Explorer drag file → real File (for timeline drop) ──
 const resolveMediaExplorerDropFile=async()=>{const mef=window.__mediaExplorerDragFile;if(!mef)return null;try{if(mef.handle&&typeof mef.handle.getFile==='function'){const f=await mef.handle.getFile();return new File([f],f.name||mef.name,{type:f.type||'application/octet-stream'});}if(mef.file_id||mef.fileId){const fid=mef.file_id||mef.fileId;const resp=await window.SonicAPI.authFetch(`${API_BASE_URL}/api/v1/audio/download/${fid}`);const blob=await resp.blob();return new File([blob],mef.name||mef.original_name||fid,{type:blob.type||'audio/wav'});}if(mef.path){const resp=await window.SonicAPI.authFetch(`${API_BASE_URL}/api/v1/media/file?path=${encodeURIComponent(mef.path)}`);const blob=await resp.blob();return new File([blob],mef.name||mef.path.split(/[\\/]/).pop(),{type:blob.type||'application/octet-stream'});}// Media Library samples: only metadata (name/kind) — real bytes served
 // from /static/midi (generated demo loops, see app/static/midi).
-if(mef.kind==='midi'&&mef.name){const resp=await fetch(`${API_BASE_URL}/static/midi/${encodeURIComponent(mef.name)}`);const blob=await resp.blob();return new File([blob],mef.name,{type:'audio/midi'});}}catch(e){showToast('Không thể nạp file từ Media Explorer: '+e.message,'error');}return null;};const loadFileOnTrack=async(trackId,file)=>{if(!file)return;var fileName=file.name||'';var isMidi=/\.mid$|\.midi$/i.test(fileName);showToast(`Đang nạp file ${fileName}...`,'info');try{if(isMidi){var arrayBuffer=await file.arrayBuffer();var midiResult=parseMidiFile(arrayBuffer);if(!midiResult||midiResult.length===0){showToast('Không tìm thấy nốt nhạc trong file MIDI.','error');return;}if(midiResult.length===1){updateActiveTracks(prev=>prev.map(function(t){if(t.id!==trackId)return t;return{...t,name:fileName,midiItems:[midiResult[0]]};}));showToast('Đã tải MIDI: '+fileName,'success');}else{var colors=['#0f766e','#1d4ed8','#701a75','#a21caf','#b45309','#ca8a04','#dc2626','#0891b2'];var firstDone=false;midiResult.forEach(function(midiItem,idx){if(!firstDone){updateActiveTracks(prev=>prev.map(function(t){if(t.id!==trackId)return t;return{...t,name:midiItem.name||fileName,midiItems:[midiItem]};}));firstDone=true;}else{var newId='midi_track_'+Date.now()+'_'+idx;updateActiveTracks(function(prev){var curLen=prev.length;return prev.concat([{id:newId,name:midiItem.name||'MIDI Track '+(idx+1),buffer:null,startTime:0,volumeDb:0,pan:0,muted:false,solo:false,color:colors[idx%colors.length],markers:[],serverFileId:null,clips:[],sections:[],midiItems:[midiItem],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}}]);});}});showToast('Đã tải MIDI: '+midiResult.length+' tracks from '+fileName,'success');}return;}// Upload to server
+if(mef.kind==='midi'&&mef.name){const resp=await fetch(`${API_BASE_URL}/static/midi/${encodeURIComponent(mef.name)}`);const blob=await resp.blob();return new File([blob],mef.name,{type:'audio/midi'});}}catch(e){showToast('Không thể nạp file từ Media Explorer: '+e.message,'error');return null;}showToast('Không thể nạp file từ Media Explorer: thiếu dữ liệu file.','error');return null;};const loadFileOnTrack=async(trackId,file)=>{if(!file)return;var fileName=file.name||'';var isMidi=/\.mid$|\.midi$/i.test(fileName);showToast(`Đang nạp file ${fileName}...`,'info');try{if(isMidi){var arrayBuffer=await file.arrayBuffer();var midiResult=parseMidiFile(arrayBuffer);if(!midiResult||midiResult.length===0){showToast('Không tìm thấy nốt nhạc trong file MIDI.','error');return;}if(midiResult.length===1){updateActiveTracks(prev=>prev.map(function(t){if(t.id!==trackId)return t;return{...t,name:fileName,midiItems:[midiResult[0]]};}));showToast('Đã tải MIDI: '+fileName,'success');}else{var colors=['#0f766e','#1d4ed8','#701a75','#a21caf','#b45309','#ca8a04','#dc2626','#0891b2'];var firstDone=false;midiResult.forEach(function(midiItem,idx){if(!firstDone){updateActiveTracks(prev=>prev.map(function(t){if(t.id!==trackId)return t;return{...t,name:midiItem.name||fileName,midiItems:[midiItem]};}));firstDone=true;}else{var newId='midi_track_'+Date.now()+'_'+idx;updateActiveTracks(function(prev){var curLen=prev.length;return prev.concat([{id:newId,name:midiItem.name||'MIDI Track '+(idx+1),buffer:null,startTime:0,volumeDb:0,pan:0,muted:false,solo:false,color:colors[idx%colors.length],markers:[],serverFileId:null,clips:[],sections:[],midiItems:[midiItem],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}}]);});}});showToast('Đã tải MIDI: '+midiResult.length+' tracks from '+fileName,'success');}return;}// Upload to server
 uploadToServer(file,trackId);// Decode locally for playback + analyze channels (stereo/mono)
 const{audioBuffer:decodedBuffer,channelInfo}=await window.SonicAudio.decodeAudioFile(file);setTracks(prev=>prev.map(t=>t.id===trackId?{...t,name:fileName,buffer:decodedBuffer,channelInfo:channelInfo}:t));showToast(`Nạp file thành công: ${fileName} (${channelInfo.label})`,'success');}catch(err){showToast(isMidi?"Lỗi giải mã MIDI.":"Lỗi giải mã âm thanh. Định dạng file không tương thích.",'error');}};// ── Drop MIDI file → create new track(s) ──
 const handleDropMidiToNewTracks=async file=>{if(!file)return;showToast('Đang nạp MIDI: '+file.name+'...','info');try{var arrayBuffer=await file.arrayBuffer();var midiResult=parseMidiFile(arrayBuffer);if(!midiResult||midiResult.length===0){showToast('Không tìm thấy nốt nhạc trong file MIDI.','error');return;}var colors=['#0f766e','#1d4ed8','#701a75','#a21caf','#b45309','#ca8a04','#dc2626','#0891b2'];var now=Date.now();var newTracks=midiResult.map(function(midiItem,idx){return{id:'midi_track_'+now+'_'+idx,name:midiItem.name||(midiResult.length>1?'MIDI Track '+(idx+1):(file.name||'MIDI').replace(/\.midi?$/i,'')),buffer:null,startTime:0,volumeDb:0,pan:0,muted:false,solo:false,masteringBypass:false,audioBypass:false,midiBypass:false,fxActive:true,color:colors[idx%colors.length],markers:[],serverFileId:null,clips:[],sections:[],midiItems:[midiItem],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}};});updateActiveTracks(function(prev){return prev.concat(newTracks);});if(newTracks.length>0)setSelectedTrackId(newTracks[0].id);showToast('Đã tải MIDI: '+newTracks.length+' track(s) từ '+file.name,'success');}catch(err){showToast('Lỗi giải mã MIDI.','error');}};// ── Synth Generators ──
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 // Carla load sẵn plugin + keyboard ảo để preview realtime.
-if(window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local){window.SonicAPI.openInCarla(v.id).then(function(r){if(r&&r.success)showToast('Đã mở Carla với '+(v.name||v.id)+' — chọn preset, bấm keyboard để preview','success');}).catch(function(err){showToast('Lỗi mở Carla: '+(err.message||err),'error');});}},className:"w-full text-left px-3 py-2 text-sm rounded bg-zinc-800 hover:bg-violet-800 text-zinc-300 flex items-center justify-between gap-2"},/*#__PURE__*/React.createElement("span",{className:"truncate"},v.name||v.id),/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-cyan-400 shrink-0"},v.type||"VST")))),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-y-auto space-y-0.5"},/*#__PURE__*/React.createElement("button",{onClick:()=>setTrackInstrumentWithUndo(instrumentSelectorTrackId,null),className:"w-full text-left px-3 py-2 text-sm rounded bg-zinc-800 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-// Carla load sẵn plugin, native GUI + keyboard ảo để preview realtime.
-if(window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local){window.SonicAPI.openInCarla(v.id).then(function(r){if(r&&r.success)showToast('Đã mở Carla với '+(v.name||v.id)+' — chọn preset, bấm keyboard để preview','success');}).catch(function(err){showToast('Lỗi mở Carla: '+(err.message||err),'error');});}},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")),window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local?/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();window.SonicAPI.openInCarla(v.id).then(function(r){if(r&&r.success){showToast('Đã mở Carla: '+(v.name||v.id),'success');}}).catch(function(err){showToast('Lỗi mở Carla: '+(err.message||err),'error');});},className:"shrink-0 px-2 text-xs bg-zinc-800 hover:bg-teal-700 text-teal-300 border-l border-zinc-700",title:"Mở trong Carla (native GUI)"},"\uD83C\uDF9B"):null)),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 Carla (native GUI)"},"\u2B06 Upload preset (t\u1EEB Carla...)"),!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"))));};const root=ReactDOM.createRoot(document.getElementById('root'));root.render(/*#__PURE__*/React.createElement(App,null));setTimeout(()=>lucide.createIcons(),300);
+if(canOpenNativeVstGui()){openNativeVstGui(v.id,instrumentSelectorTrackId,v.path,v.type).then(function(r){if(r&&(r.success||typeof r==='string'))showToast('Đã mở GUI với '+(v.name||v.id)+' — chỉnh tham số, bấm keyboard để preview','success');}).catch(function(err){showToast('Lỗi mở VST GUI: '+(err.message||err),'error');});}},className:"w-full text-left px-3 py-2 text-sm rounded bg-zinc-800 hover:bg-violet-800 text-zinc-300 flex items-center justify-between gap-2"},/*#__PURE__*/React.createElement("span",{className:"truncate"},v.name||v.id),/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-cyan-400 shrink-0"},v.type||"VST")))),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-y-auto space-y-0.5"},/*#__PURE__*/React.createElement("button",{onClick:()=>setTrackInstrumentWithUndo(instrumentSelectorTrackId,null),className:"w-full text-left px-3 py-2 text-sm rounded bg-zinc-800 hover:bg-zinc-700 text-zinc-400"},"None (Default Synth)"),sfPresets===null?(/*#__PURE__*/React.createElement("p",{className:"text-sm text-zinc-500 py-2"},"Loading instruments...")):sfPresets.length>0?sfPresets.filter(p=>!selectedSoundFontId||p._sfId===selectedSoundFontId).filter(p=>!sfPresetSearchQuery||(p.name||'').toLowerCase().includes(sfPresetSearchQuery.toLowerCase())||(p._sfName||'').toLowerCase().includes(sfPresetSearchQuery.toLowerCase())).map((p,i)=>/*#__PURE__*/React.createElement("button",{key:i,onClick:()=>setTrackInstrumentWithUndo(instrumentSelectorTrackId,p._sfId,p.name||'Preset '+p.program,p.bank,p.program),onDoubleClick:()=>{setTrackInstrumentWithUndo(instrumentSelectorTrackId,p._sfId,p.name||'Preset '+p.program,p.bank,p.program);closeInstrumentSelector();},className:"w-full text-left px-3 py-2 text-sm rounded bg-zinc-800/60 hover:bg-amber-800 text-zinc-300 truncate flex items-center gap-2"},/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-500 shrink-0"},p._sfDisplay),p.bank===128?/*#__PURE__*/React.createElement("span",{className:"mr-1"},"🥁"):null,p.name||'Preset '+p.program)):(/*#__PURE__*/React.createElement("p",{className:"text-sm text-zinc-500 py-2"},sfPresetSearchQuery?"Kh\u00f4ng t\u00ecm th\u1ea5y nh\u1ea1c c\u1ee5 ph\u00f9 h\u1ee3p.":"No presets found.")))))),fxSelectorTrackId&&/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm",onClick:()=>setFxSelectorTrackId(null)},/*#__PURE__*/React.createElement("div",{className:"bg-[#262626] border border-[#383838] rounded-xl shadow-2xl w-64 p-4 text-slate-200",onClick:e=>e.stopPropagation()},/*#__PURE__*/React.createElement("h3",{className:"text-sm font-bold text-purple-400 mb-3"},"Track FX"),/*#__PURE__*/React.createElement("div",{className:"space-y-1"},/*#__PURE__*/React.createElement("button",{onClick:()=>handleSetTrackFx(fxSelectorTrackId,null),className:"w-full text-left px-3 py-2 text-xs rounded bg-zinc-800 hover:bg-zinc-700 text-zinc-400"},"None"),/*#__PURE__*/React.createElement("button",{onClick:()=>handleSetTrackFx(fxSelectorTrackId,'chorus'),className:"w-full text-left px-3 py-2 text-xs rounded bg-zinc-800 hover:bg-cyan-800 text-cyan-300"},"Chorus"),/*#__PURE__*/React.createElement("button",{onClick:()=>handleSetTrackFx(fxSelectorTrackId,'reverb'),className:"w-full text-left px-3 py-2 text-xs rounded bg-zinc-800 hover:bg-purple-800 text-purple-300"},"Reverb")))),instrumentDropdownTrackId&&instrumentDropdownBtnRect&&/*#__PURE__*/React.createElement("div",{"data-instr-dropdown":"",className:"fixed z-[100] bg-[#1e1e1e] border border-zinc-700 rounded shadow-xl w-[220px] max-h-[300px] flex flex-col",style:{top:instrumentDropdownBtnRect.bottom+4,left:Math.max(4,Math.min(instrumentDropdownBtnRect.left,window.innerWidth-224))}},/*#__PURE__*/React.createElement("input",{type:"text",placeholder:"T\u00ecm nh\u1ea1c c\u1ee5...",value:instrumentSearchQuery,onChange:e=>setInstrumentSearchQuery(e.target.value),autoFocus:true,className:"w-full bg-black border-b border-zinc-700 px-2 py-1.5 text-xs outline-none"}),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-y-auto"},/*#__PURE__*/React.createElement("button",{onClick:()=>setTrackInstrumentWithUndo(instrumentDropdownTrackId,null),className:"w-full text-left px-3 py-1.5 text-xs bg-zinc-800 hover:bg-zinc-700 text-zinc-400"},"None (Default Synth)"),window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local?/*#__PURE__*/React.createElement("button",{onClick:()=>{setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);window.SonicAPI.openInCarla().then(function(r){if(r&&r.success){showToast('Đã mở Carla — chọn VSTi, chỉnh âm, Save preset (.vstpreset) rồi Upload trong app','success');}}).catch(function(err){showToast('Lỗi mở Carla: '+(err.message||err),'error');});},className:"w-full text-left px-3 py-1.5 text-xs bg-zinc-800 hover:bg-teal-800 text-teal-300 font-semibold flex items-center justify-between",title:"Mở Carla.exe trên hệ thống (native GUI VSTi) — không cần scan VST trong app"},"\uD83C\uDF9B Carla Bridge (m\u1EDF Carla.exe)",/*#__PURE__*/React.createElement("span",{className:"text-[9px] text-teal-500 shrink-0 ml-1"},"GUI")):null,filteredInstruments.soundfonts.length>0&&/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500 px-3 py-1 mt-1 uppercase 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);// TỰ ĐỘNG mở native GUI với VSTi vừa chọn (standalone) / Carla (browser).
+if(canOpenNativeVstGui()){openNativeVstGui(v.id,instrumentDropdownTrackId,v.path,v.type).then(function(r){if(r&&(r.success||typeof r==='string'))showToast('Đã mở GUI với '+(v.name||v.id)+' — chọn preset, bấm keyboard để preview','success');}).catch(function(err){showToast('Lỗi mở VST GUI: '+(err.message||err),'error');});}},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")),window.SonicRuntime&&window.SonicRuntime.capabilities&&window.SonicRuntime.capabilities.features&&window.SonicRuntime.capabilities.features.carla_local?/*#__PURE__*/React.createElement("button",{onClick:e=>{e.stopPropagation();openNativeVstGui(v.id,instrumentDropdownTrackId,v.path,v.type).then(function(r){if(r&&(r.success||typeof r==='string')){showToast('Đã mở GUI: '+(v.name||v.id),'success');}}).catch(function(err){showToast('Lỗi mở VST GUI: '+(err.message||err),'error');});},className:"shrink-0 px-2 text-xs bg-zinc-800 hover:bg-teal-700 text-teal-300 border-l border-zinc-700",title:"Mở trong Carla (native GUI)"},"\uD83C\uDF9B"):null)),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 Carla (native GUI)"},"\u2B06 Upload preset (t\u1EEB Carla...)"),!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"))));};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/nativeAudioClient.js b/app/static/js/services/nativeAudioClient.js
index 39d3ccb..8d62cc6 100644
--- a/app/static/js/services/nativeAudioClient.js
+++ b/app/static/js/services/nativeAudioClient.js
@@ -58,16 +58,30 @@ window.SonicNativeAudio = window.SonicNativeAudio || {};
                 console.warn('[NativeAudio] sf/ensure:', e.message);
             });
         },
+        ensureVst2: function (trackId, pluginId, pluginPath) {
+            return post('/vst2/ensure', { track_id: trackId, plugin_id: pluginId || null, plugin_path: pluginPath || null, live: true }).catch(function (e) {
+                console.warn('[NativeAudio] vst2/ensure:', e.message);
+            });
+        },
+        ensureVst3: function (trackId, pluginId, pluginPath) {
+            return post('/vst3/ensure', { track_id: trackId, plugin_id: pluginId || null, plugin_path: pluginPath || null, live: true }).catch(function (e) {
+                console.warn('[NativeAudio] vst3/ensure:', e.message);
+            });
+        },
         noteOn: function (kind, trackId, channel, pitch, velocity) {
-            var path = kind === 'vst2' ? '/vst2/note_on' : '/sf/note_on';
+            var path = kind === 'vst2' ? '/vst2/note_on' : (kind === 'vst3' ? '/vst3/note_on' : '/sf/note_on');
+            // Rethrow sau warn: TrackInstrument can fallback autosample/WASM
+            // khi native khong san sang (DLL/plugin loi).
             return post(path, { track_id: trackId, channel: channel || 0, pitch: pitch, velocity: velocity != null ? velocity : 100 }).catch(function (e) {
                 console.warn('[NativeAudio] note_on:', e.message);
+                throw e;
             });
         },
         noteOff: function (kind, trackId, channel, pitch) {
-            var path = kind === 'vst2' ? '/vst2/note_off' : '/sf/note_off';
+            var path = kind === 'vst2' ? '/vst2/note_off' : (kind === 'vst3' ? '/vst3/note_off' : '/sf/note_off');
             return post(path, { track_id: trackId, channel: channel || 0, pitch: pitch }).catch(function (e) {
                 console.warn('[NativeAudio] note_off:', e.message);
+                throw e;
             });
         },
         sfAudioStop: function (trackId) {
diff --git a/app/static/js/services/trackInstrument.js b/app/static/js/services/trackInstrument.js
index c0e85f9..8b3a40e 100644
--- a/app/static/js/services/trackInstrument.js
+++ b/app/static/js/services/trackInstrument.js
@@ -20,9 +20,23 @@ window.TrackInstrument = window.TrackInstrument || {};
         this.dest = ctx ? (ctx.dest || null) : null;
     }
 
-    // Native engine sẵn sàng cho track SF? (chỉ khi có sfId — đường native)
+    // Loại engine native cho track: 'sf' (soundfont), 'vst3'/'vst2' (VSTi có
+    // plugin_id) hay null (không native được → fallback WASM/autosample).
+    TrackInstrument.prototype._nativeKind = function () {
+        try {
+            if (this.sfId) return 'sf';
+            if (window.SonicNativeAudio && this.synthEngine && this.synthEngine.plugin_id) {
+                var t = String(this.synthEngine.type || '');
+                if (t.indexOf('vst2') !== -1) return 'vst2';
+                if (t.indexOf('vst3') !== -1 || t.indexOf('vst') !== -1) return 'vst3';
+            }
+        } catch (e) { }
+        return null;
+    };
+
+    // Native engine sẵn sàng cho track? (sfId cho SF, plugin_id cho VSTi)
     TrackInstrument.prototype._nativeReady = function () {
-        try { return !!(window.SonicNativeAudio && this.sfId); } catch (e) { return false; }
+        return this._nativeKind() !== null;
     };
 
     // Đảm bảo channel đã select đúng instrument trước khi play (fire-and-forget:
@@ -40,17 +54,48 @@ window.TrackInstrument = window.TrackInstrument || {};
         }
     };
 
+    // Phát qua SonicSF WASM (fallback khi native fail). SonicSF tự autosample
+    // VSTi (soundfontPlayer._playNoteFluid) nên không cần ensure riêng ở đây.
+    TrackInstrument.prototype._fallbackPlayNote = function (pitch, velocity, durationMs, startTime) {
+        try {
+            if (!window.SonicSF || !window.SonicSF.playNote) return;
+            this._ensure();
+            var durF = (durationMs != null ? durationMs : 500) || 500;
+            window.SonicSF.playNote(pitch, velocity != null ? velocity : 0.8, durF, startTime, this.program, this.dest, this.ch, this.synthEngine);
+        } catch (e) {
+            console.warn('[TrackInstrument] fallback playNote error:', e);
+        }
+    };
+
     // velocity: router đã normalize int 1-127 (unifiedMidiRouter.normalizeVelocity).
     TrackInstrument.prototype.playNote = function (pitch, velocity, durationMs, startTime) {
         var vel = velocity != null ? velocity : 100;
-        if (this._nativeReady()) {
+        var kind = this._nativeKind();
+        if (kind) {
             try {
                 var self = this;
                 var dur = (durationMs != null ? durationMs : 500) || 500;
-                // ensure native SF engine cho track (server dedup theo track_id)
-                window.SonicNativeAudio.ensureSf(this.trackId, this.sfId, this.bank, this.prog)
-                    .catch(function () {});
-                window.SonicNativeAudio.noteOn('sf', this.trackId, this.ch, pitch, vel);
+                if (kind === 'sf') {
+                    // ensure native SF engine cho track (server dedup theo track_id)
+                    window.SonicNativeAudio.ensureSf(this.trackId, this.sfId, this.bank, this.prog)
+                        .catch(function () {});
+                } else {
+                    // VSTi live native (Phase 2): ensure + note-on qua bridge DLL.
+                    // Server resolve plugin_id -> path; lỗi -> fallback WASM autosample.
+                    if (kind === 'vst3') {
+                        window.SonicNativeAudio.ensureVst3(this.trackId, this.synthEngine.plugin_id, this.synthEngine.plugin_path)
+                            .catch(function () {});
+                    } else {
+                        window.SonicNativeAudio.ensureVst2(this.trackId, this.synthEngine.plugin_id, this.synthEngine.plugin_path)
+                            .catch(function () {});
+                    }
+                }
+                window.SonicNativeAudio.noteOn(kind, this.trackId, this.ch, pitch, vel).catch(function (err) {
+                    // Native khong phat duoc (DLL/plugin loi) -> fallback WASM:
+                    // SF track di SonicSF, VSTi di autosample (SonicSF tu ensure).
+                    console.warn('[TrackInstrument] native noteOn fail -> WASM fallback:', err && err.message);
+                    self._fallbackPlayNote(pitch, velocity, dur, startTime);
+                });
                 // ponytail: TrackInstrument không biết audioCtx → bỏ startTime
                 // offset (delay = duration); thêm scheduling chính xác khi cần
                 setTimeout(function () { self.noteOff(pitch); }, dur + 40);
@@ -60,20 +105,20 @@ window.TrackInstrument = window.TrackInstrument || {};
             }
         }
         // Fallback SonicSF (WASM)
-        try {
-            if (!window.SonicSF || !window.SonicSF.playNote) return;
-            this._ensure();
-            var durF = (durationMs != null ? durationMs : 500) || 500;
-            window.SonicSF.playNote(pitch, velocity != null ? velocity : 0.8, durF, startTime, this.program, this.dest, this.ch, this.synthEngine);
-        } catch (e) {
-            console.warn('[TrackInstrument] playNote error:', e);
-        }
+        this._fallbackPlayNote(pitch, velocity, durationMs, startTime);
     };
 
     TrackInstrument.prototype.noteOff = function (pitch) {
-        if (this._nativeReady()) {
-            try { window.SonicNativeAudio.noteOff('sf', this.trackId, this.ch, pitch); return; } catch (e) {}
+        var kind = this._nativeKind();
+        if (kind) {
+            try {
+                window.SonicNativeAudio.noteOff(kind, this.trackId, this.ch, pitch).catch(function () {
+                    // Native note-off fail -> stop qua WASM (neu note da fallback)
+                    try { if (window.SonicSF && window.SonicSF.stopNote) window.SonicSF.stopNote(this.ch, pitch); } catch (e) {}
+                });
+            } catch (e) {}
         }
+        // Belt-and-suspenders: stopNote WASM vo hai neu khong co note dang phat.
         try {
             if (window.SonicSF && window.SonicSF.stopNote) window.SonicSF.stopNote(this.ch, pitch);
         } catch (e) {}
diff --git a/app/static/js/services/unifiedMidiRouter.js b/app/static/js/services/unifiedMidiRouter.js
index d2845bc..d80bd4a 100644
--- a/app/static/js/services/unifiedMidiRouter.js
+++ b/app/static/js/services/unifiedMidiRouter.js
@@ -3,7 +3,12 @@
 // hóa UnifiedMidiEvent → UnifiedMidiRouter → engine theo trackId. Một điểm
 // dispatch duy nhất: activeVoiceTracker đếm note-on/off đúng (hết stuck
 // notes), panicAllNotesOff() quét toàn bộ voice khi đổi instrument/engine
-// giữa chừng. Chưa nối vào app (T5–T7 sẽ đăng ký engine + dispatch).
+// giữa chừng.
+// Trạng thái nối (đối chiếu GIAI_PHAP 2026-08): ĐÃ nối cho PREVIEW — app.jsx
+// _routeNoteOn/_routeNoteOff (L212-260) đăng ký TrackInstrument per-track và
+// dispatch qua router (keybed/click/draw/timeline scheduler gọi _routePreviewNote
+// trước, chỉ fallback SonicSF.playNote khi router không xử lý). CHƯA nối cho
+// timeline scheduler per-item (vẫn gọi thẳng SonicSF.playNote / scheduleNativeSfItem).
 window.SonicUnifiedMidiRouter = window.SonicUnifiedMidiRouter || {};
 
 (function () {
diff --git a/app/static/vst_gui.html b/app/static/vst_gui.html
new file mode 100644
index 0000000..e4ff045
--- /dev/null
+++ b/app/static/vst_gui.html
@@ -0,0 +1,132 @@
+<!DOCTYPE html>
+<html lang="vi">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>VST GUI</title>
+<style>
+  :root { color-scheme: dark; }
+  * { box-sizing: border-box; }
+  body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; background: #16161a; color: #e4e4e7; }
+  header { display: flex; align-items: center; justify-content: space-between; padding: 8px 12px; background: #1e1e24; border-bottom: 1px solid #2d2d35; position: sticky; top: 0; z-index: 10; }
+  header h1 { font-size: 13px; margin: 0; font-weight: 600; color: #7dd3fc; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+  header .meta { font-size: 10px; color: #71717a; margin-top: 2px; }
+  #params { padding: 10px 12px; }
+  .param { display: grid; grid-template-columns: minmax(0,1fr) 60px; align-items: center; gap: 8px; padding: 6px 0; border-bottom: 1px solid #26262d; }
+  .param .title { font-size: 11px; color: #d4d4d8; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+  .param .val { font-size: 10px; font-family: ui-monospace, monospace; color: #7dd3fc; text-align: right; }
+  input[type=range] { width: 100%; accent-color: #0ea5e9; }
+  #status { padding: 8px 12px; font-size: 11px; color: #a1a1aa; }
+  #status.err { color: #f87171; }
+</style>
+</head>
+<body>
+<header>
+  <div>
+    <h1 id="title">VST GUI</h1>
+    <div class="meta" id="meta"></div>
+  </div>
+  <button id="closeBtn" style="background:#3f3f46;border:1px solid #52525b;color:#f4f4f5;font-size:11px;padding:4px 10px;border-radius:4px;cursor:pointer;">Đóng</button>
+</header>
+<div id="params"></div>
+<div id="status">Đang tải tham số…</div>
+
+<script>
+(function () {
+  const qs = new URLSearchParams(window.location.search);
+  const trackId = qs.get('track') || '';
+  const pluginId = qs.get('plugin') || '';
+  const el = (id) => document.getElementById(id);
+
+  el('title').textContent = 'VST GUI - ' + pluginId;
+  el('meta').textContent = 'track=' + trackId;
+
+  const invoke = (cmd, args) => {
+    if (window.__TAURI__ && window.__TAURI__.core) {
+      return window.__TAURI__.core.invoke(cmd, args);
+    }
+    return Promise.reject(new Error('Tauri core unavailable'));
+  };
+
+  let params = [];
+
+  function render() {
+    const box = el('params');
+    box.innerHTML = '';
+    if (!params.length) {
+      el('status').textContent = 'Plugin không có tham số (hoặc chưa nạp).';
+      return;
+    }
+    el('status').textContent = params.length + ' tham số — kéo slider để đổi giá trị.';
+    params.forEach((p) => {
+      const row = document.createElement('div');
+      row.className = 'param';
+      const title = document.createElement('div');
+      title.className = 'title';
+      title.textContent = p.title || ('Param ' + p.param_id);
+      title.title = title.textContent;
+      const val = document.createElement('div');
+      val.className = 'val';
+      const range = document.createElement('input');
+      range.type = 'range';
+      range.min = 0;
+      range.max = 1;
+      range.step = 0.001;
+      range.value = Math.min(1, Math.max(0, p.value || 0));
+      val.textContent = (p.value || 0).toFixed(3);
+      let dragging = false;
+      range.addEventListener('input', () => {
+        val.textContent = Number(range.value).toFixed(3);
+      });
+      range.addEventListener('change', () => {
+        invoke('set_vst_param', { trackId: trackId, pluginId: pluginId, paramId: p.param_id, value: Number(range.value) })
+          .catch((err) => { el('status').className = 'err'; el('status').textContent = 'set_vst_param lỗi: ' + (err && (err.message || err)); });
+      });
+      row.appendChild(title);
+      row.appendChild(val);
+      row.appendChild(range);
+      box.appendChild(row);
+    });
+  }
+
+  // Sync 2 chiều: native editor đổi param → Rust emit vst_param_changed → cập nhật slider.
+  function onParamChanged(e) {
+    const d = e.payload || {};
+    if (d.param_id === undefined) return;
+    const p = params.find((x) => x.param_id === d.param_id);
+    if (p) {
+      p.value = d.value;
+      const ranges = document.querySelectorAll('input[type=range]');
+      const idx = params.indexOf(p);
+      if (ranges[idx]) ranges[idx].value = Math.min(1, Math.max(0, d.value));
+      const vals = document.querySelectorAll('.val');
+      if (vals[idx]) vals[idx].textContent = Number(d.value).toFixed(3);
+    }
+  }
+
+  function init() {
+    invoke('get_vst_params', { trackId: trackId, pluginId: pluginId }).then((list) => {
+      params = list || [];
+      render();
+    }).catch((err) => {
+      el('status').className = 'err';
+      el('status').textContent = 'get_vst_params lỗi: ' + (err && (err.message || err)) + ' — plugin chưa mở được (kiểm tra log Rust / bridge DLL).';
+    });
+  }
+
+  el('closeBtn').addEventListener('click', () => {
+    invoke('close_vst_editor', { trackId: trackId, pluginId: pluginId }).catch(() => {});
+    window.close();
+  });
+  window.addEventListener('beforeunload', () => {
+    invoke('close_vst_editor', { trackId: trackId, pluginId: pluginId }).catch(() => {});
+  });
+
+  if (window.__TAURI__ && window.__TAURI__.event) {
+    window.__TAURI__.event.listen('vst_param_changed', onParamChanged).catch(() => {});
+  }
+  init();
+})();
+</script>
+</body>
+</html>
diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index d748eba..d4d1293 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -2880,6 +2880,8 @@ dependencies = [
  "tauri-build",
  "tauri-plugin-dialog",
  "tauri-plugin-shell",
+ "webview2-com",
+ "windows-core 0.61.2",
 ]
 
 [[package]]
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 4249a46..26520fe 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -16,6 +16,8 @@ tauri = { version = "2", features = [] }
 tauri-plugin-shell = "2"
 tauri-plugin-dialog = "2"
 raw-window-handle = "0.6"
+webview2-com = "0.38"
+windows-core = "0.61"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 9b5871c..d4f6474 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -18,6 +18,7 @@ use std::path::{Path, PathBuf};
 use std::sync::Mutex;
 
 mod vst_gui;
+mod permissions;
 
 struct EngineProcess(Mutex<Option<CommandChild>>);
 
@@ -77,6 +78,9 @@ pub fn run() {
         .plugin(tauri_plugin_dialog::init())
         .invoke_handler(tauri::generate_handler![vst_gui::open_vst_gui, vst_gui::set_vst_param, vst_gui::get_vst_params, vst_gui::close_vst_editor])
         .setup(|app| {
+            permissions::install(
+                &app.get_webview_window("main").expect("main window missing"),
+            );
             vst_gui::init(app.handle());
             let res_dir = app
                 .path()
diff --git a/src-tauri/src/permissions.rs b/src-tauri/src/permissions.rs
new file mode 100644
index 0000000..553bc40
--- /dev/null
+++ b/src-tauri/src/permissions.rs
@@ -0,0 +1,27 @@
+// Standalone permissions (Bug 5): WebView2 auto-ALLOW mọi permission request
+// (MIDI input, microphone, File System Access) — không hiện popup hỏi quyền.
+// WebView2 mặc định DENY khi không có handler ICoreWebView2::add_PermissionRequested.
+#![cfg(windows)]
+
+use webview2_com::Microsoft::Web::WebView2::Win32::*;
+use webview2_com::PermissionRequestedEventHandler;
+
+pub fn install(window: &tauri::WebviewWindow) {
+    let _ = window.with_webview(|webview| {
+        unsafe {
+            if let Ok(core) = webview.controller().CoreWebView2() {
+                let handler = PermissionRequestedEventHandler::create(Box::new(
+                    |_sender: Option<ICoreWebView2>,
+                     args: Option<ICoreWebView2PermissionRequestedEventArgs>| {
+                        if let Some(args) = args {
+                            args.SetState(COREWEBVIEW2_PERMISSION_STATE_ALLOW)?;
+                        }
+                        Ok(())
+                    },
+                ));
+                let mut token = 0i64;
+                let _ = core.add_PermissionRequested(&handler, &mut token);
+            }
+        }
+    });
+}