diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx
index a383f3e..cc75196 100644
--- a/app/static/js/app.jsx
+++ b/app/static/js/app.jsx
@@ -17869,6 +17869,7 @@ const App = () => {
     if (id === 'export') setShowExportPanel(true); else if (id === 'ai') setShowAIPanel(true); else if (id === 'python_tools') setShowPythonToolsPanel(true); else if (id === 'selection') setShowSelectionPanel(true);
   };
   const [instrumentSelectorTrackId, setInstrumentSelectorTrackId] = useState(null);
+  const [selectorLoadedInst, setSelectorLoadedInst] = useState(null); // instrument dang load cua track (de highlight)
   const [synthTrackDropdownId, setSynthTrackDropdownId] = useState(null);
   const [fxSelectorTrackId, setFxSelectorTrackId] = useState(null);
   const handleSetTrackFx = (trackId, fxType) => {
@@ -17883,6 +17884,26 @@ const App = () => {
     setSfPresetSearchQuery('');
     setInstrumentRefreshKey(k => k + 1);
     setSfPresets(null);
+    // Highlight instrument dang load cua track (v17: nhan lai nut Synth -> show lai instrument da load)
+    var selTracks = activeTracksRef.current || tracks;
+    var selTrk = null;
+    for (var si = 0; si < selTracks.length; si++) { if (selTracks[si].id === trackId) { selTrk = selTracks[si]; break; } }
+    var loaded = null;
+    if (selTrk && selTrk.instrumentId && String(selTrk.instrumentId).indexOf('sf_') === 0) {
+      var sfEng = selTrk.synth_engine || {};
+      loaded = {
+        sfId: selTrk.instrumentId,
+        bank: selTrk.soundfont_bank !== undefined ? selTrk.soundfont_bank : (sfEng.soundfont_bank !== undefined ? sfEng.soundfont_bank : 0),
+        prog: selTrk.instrumentProgram !== undefined ? selTrk.instrumentProgram : (sfEng.soundfont_program !== undefined ? sfEng.soundfont_program : 0)
+      };
+      setSelectedSoundFontId(selTrk.instrumentId);
+      setSynthCategory('soundfont');
+    } else {
+      if (selTrk && selTrk.instrumentId) loaded = { instId: selTrk.instrumentId };
+      setSelectedSoundFontId(null);
+      setSynthCategory(null);
+    }
+    setSelectorLoadedInst(loaded);
     // Fetch instruments fresh from API for all soundfonts
     window.SonicAPI.listPlugins().then(async data => {
       var sfonts = data.soundfonts || [];
@@ -17911,6 +17932,7 @@ const App = () => {
     setInstrumentSelectorTrackId(null);
     setSynthCategory(null);
     setSelectedSoundFontId(null);
+    setSelectorLoadedInst(null);
     setSfPresetSearchQuery('');
   };
   const [synthCategory, setSynthCategory] = useState(null); // 'vst' | 'soundfont'
@@ -35218,7 +35240,7 @@ STRICT CONSTRAINTS:
         /*#__PURE__*/React.createElement("div", { className: "w-1/3 border-r border-[#383838] overflow-y-auto space-y-0.5 pr-2" },
           /*#__PURE__*/React.createElement("button", {
             onClick: () => { setSelectedSoundFontId(null); setSynthCategory(null); },
-            className: "w-full text-left px-3 py-2 text-sm rounded " + (!selectedSoundFontId ? "bg-amber-700 text-white" : "bg-zinc-800 hover:bg-zinc-700 text-zinc-300")
+            className: "w-full text-left px-3 py-2 text-sm rounded " + ((!selectedSoundFontId && !(selectorLoadedInst && selectorLoadedInst.instId)) ? "bg-amber-700 text-white" : "bg-zinc-800 hover:bg-zinc-700 text-zinc-300")
           }, "All Instruments"),
           (instrumentSelectorData?.soundfonts || []).map(sf => {
             const sfId = sf.id.startsWith('sf_') ? sf.id : 'sf_' + sf.id;
@@ -35250,7 +35272,7 @@ STRICT CONSTRAINTS:
               setTrackInstrumentWithUndo(instrumentSelectorTrackId, v.id, v.name || v.id);
               closeInstrumentSelector();
             },
-            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"
+            className: "w-full text-left px-3 py-2 text-sm rounded " + ((selectorLoadedInst && selectorLoadedInst.instId === v.id) ? "bg-violet-800 text-white" : "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" },
@@ -35269,7 +35291,7 @@ STRICT CONSTRAINTS:
                   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"
+                  className: "w-full text-left px-3 py-2 text-sm rounded " + ((selectorLoadedInst && selectorLoadedInst.sfId === p._sfId && selectorLoadedInst.bank === p.bank && selectorLoadedInst.prog === p.program) ? "bg-amber-800/80 text-white ring-1 ring-amber-400/60" : "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,
diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js
index 8987830..16261e9 100644
--- a/app/static/js/app.precompiled.js
+++ b/app/static/js/app.precompiled.js
@@ -1131,8 +1131,10 @@ if(oldSpb&&selectionFollowsTempo&&selectionStart!==null&&selectionEnd!==null&&se
 setCanvasRedrawCount(n=>n+1);// Recalculate item/section durations
 updateActiveTracks(prev=>prev.map(t=>({...t,midiItems:(t.midiItems||[]).map(m=>{if(m.length_bars)return{...m,duration:m.length_bars*secondsPerBar};if(m.duration){// Legacy item without length_bars: compute bars from current duration/BPM
 const bars=Math.max(0.25,Math.round(m.duration/secondsPerBar*4)/4);return{...m,length_bars:bars,duration:bars*secondsPerBar};}return m;}),sections:(t.sections||[]).map(s=>{if(s.length_bars)return{...s,duration:s.length_bars*secondsPerBar};if(s.duration){const bars=Math.max(0.25,Math.round(s.duration/secondsPerBar*4)/4);return{...s,length_bars:bars,duration:bars*secondsPerBar};}return s;})})));},[bpm]);// LAN badge removed per request: server IP now shown in SERVER label.
-const openPanel=id=>{if(id==='export')setShowExportPanel(true);else if(id==='ai')setShowAIPanel(true);else if(id==='python_tools')setShowPythonToolsPanel(true);else if(id==='selection')setShowSelectionPanel(true);};const[instrumentSelectorTrackId,setInstrumentSelectorTrackId]=useState(null);const[synthTrackDropdownId,setSynthTrackDropdownId]=useState(null);const[fxSelectorTrackId,setFxSelectorTrackId]=useState(null);const handleSetTrackFx=(trackId,fxType)=>{updateActiveTracks(prev=>prev.map(t=>t.id===trackId?{...t,fxType}:t));setFxSelectorTrackId(null);setTimeout(()=>lucide.createIcons(),50);};const[instrumentSelectorData,setInstrumentSelectorData]=useState(null);const[instrumentRefreshKey,setInstrumentRefreshKey]=useState(0);const openInstrumentSelector=trackId=>{setInstrumentSelectorTrackId(trackId);setSfPresetSearchQuery('');setInstrumentRefreshKey(k=>k+1);setSfPresets(null);// Fetch instruments fresh from API for all soundfonts
-window.SonicAPI.listPlugins().then(async data=>{var sfonts=data.soundfonts||[];if(sfonts.length===0){setSfPresets([]);return;}try{var results=await Promise.all(sfonts.map(function(sf){var sfId=sf.id.replace('sf_','');return window.SonicAPI.listSoundfontInstruments(sfId).then(function(r){return{sf:sf,presets:r.presets||[]};}).catch(function(){return{sf:sf,presets:[]};});}));var all=[];results.forEach(function(r){var sf=r.sf;var sfId=sf.id.startsWith('sf_')?sf.id:'sf_'+sf.id;var sfName=sf.display||sf.name||sf.id;(r.presets||[]).forEach(function(p){all.push({...p,_sfId:sfId,_sfName:sfName,_sfDisplay:sfName.substring(0,30)});});});setSfPresets(all.length>0?all:[]);}catch(e){setSfPresets([]);}}).catch(function(){setSfPresets([]);});};const closeInstrumentSelector=()=>{setInstrumentSelectorTrackId(null);setSynthCategory(null);setSelectedSoundFontId(null);setSfPresetSearchQuery('');};const[synthCategory,setSynthCategory]=useState(null);// 'vst' | 'soundfont'
+const openPanel=id=>{if(id==='export')setShowExportPanel(true);else if(id==='ai')setShowAIPanel(true);else if(id==='python_tools')setShowPythonToolsPanel(true);else if(id==='selection')setShowSelectionPanel(true);};const[instrumentSelectorTrackId,setInstrumentSelectorTrackId]=useState(null);const[selectorLoadedInst,setSelectorLoadedInst]=useState(null);// instrument dang load cua track (de highlight)
+const[synthTrackDropdownId,setSynthTrackDropdownId]=useState(null);const[fxSelectorTrackId,setFxSelectorTrackId]=useState(null);const handleSetTrackFx=(trackId,fxType)=>{updateActiveTracks(prev=>prev.map(t=>t.id===trackId?{...t,fxType}:t));setFxSelectorTrackId(null);setTimeout(()=>lucide.createIcons(),50);};const[instrumentSelectorData,setInstrumentSelectorData]=useState(null);const[instrumentRefreshKey,setInstrumentRefreshKey]=useState(0);const openInstrumentSelector=trackId=>{setInstrumentSelectorTrackId(trackId);setSfPresetSearchQuery('');setInstrumentRefreshKey(k=>k+1);setSfPresets(null);// Highlight instrument dang load cua track (v17: nhan lai nut Synth -> show lai instrument da load)
+var selTracks=activeTracksRef.current||tracks;var selTrk=null;for(var si=0;si<selTracks.length;si++){if(selTracks[si].id===trackId){selTrk=selTracks[si];break;}}var loaded=null;if(selTrk&&selTrk.instrumentId&&String(selTrk.instrumentId).indexOf('sf_')===0){var sfEng=selTrk.synth_engine||{};loaded={sfId:selTrk.instrumentId,bank:selTrk.soundfont_bank!==undefined?selTrk.soundfont_bank:sfEng.soundfont_bank!==undefined?sfEng.soundfont_bank:0,prog:selTrk.instrumentProgram!==undefined?selTrk.instrumentProgram:sfEng.soundfont_program!==undefined?sfEng.soundfont_program:0};setSelectedSoundFontId(selTrk.instrumentId);setSynthCategory('soundfont');}else{if(selTrk&&selTrk.instrumentId)loaded={instId:selTrk.instrumentId};setSelectedSoundFontId(null);setSynthCategory(null);}setSelectorLoadedInst(loaded);// Fetch instruments fresh from API for all soundfonts
+window.SonicAPI.listPlugins().then(async data=>{var sfonts=data.soundfonts||[];if(sfonts.length===0){setSfPresets([]);return;}try{var results=await Promise.all(sfonts.map(function(sf){var sfId=sf.id.replace('sf_','');return window.SonicAPI.listSoundfontInstruments(sfId).then(function(r){return{sf:sf,presets:r.presets||[]};}).catch(function(){return{sf:sf,presets:[]};});}));var all=[];results.forEach(function(r){var sf=r.sf;var sfId=sf.id.startsWith('sf_')?sf.id:'sf_'+sf.id;var sfName=sf.display||sf.name||sf.id;(r.presets||[]).forEach(function(p){all.push({...p,_sfId:sfId,_sfName:sfName,_sfDisplay:sfName.substring(0,30)});});});setSfPresets(all.length>0?all:[]);}catch(e){setSfPresets([]);}}).catch(function(){setSfPresets([]);});};const closeInstrumentSelector=()=>{setInstrumentSelectorTrackId(null);setSynthCategory(null);setSelectedSoundFontId(null);setSelectorLoadedInst(null);setSfPresetSearchQuery('');};const[synthCategory,setSynthCategory]=useState(null);// 'vst' | 'soundfont'
 const[selectedSoundFontId,setSelectedSoundFontId]=useState(null);const[sfPresets,setSfPresets]=useState(null);// presets from SoundFont
 const[instrumentDropdownTrackId,setInstrumentDropdownTrackId]=useState(null);const[instrumentDropdownBtnRect,setInstrumentDropdownBtnRect]=useState(null);const[instrumentSearchQuery,setInstrumentSearchQuery]=useState('');const[sfPresetSearchQuery,setSfPresetSearchQuery]=useState('');const filteredInstruments=useMemo(()=>{if(!instrumentSelectorData||!instrumentSearchQuery)return{soundfonts:instrumentSelectorData?.soundfonts||[],vst:instrumentSelectorData?.vst_instruments||[]};const q=instrumentSearchQuery.toLowerCase();return{soundfonts:(instrumentSelectorData.soundfonts||[]).filter(sf=>(sf.display||sf.name||sf.id).toLowerCase().includes(q)),vst:(instrumentSelectorData.vst_instruments||[]).filter(v=>(v.name||v.id).toLowerCase().includes(q))};},[instrumentSearchQuery,instrumentSelectorData]);useEffect(()=>{window.SonicAPI.listPlugins().then(async data=>{try{const catResp=(await window.SonicAPI.getSoundfontCatalog?.())??(await fetch('/api/v1/plugins/soundfonts/catalog').then(r=>r.json()));const catalog=catResp.full_catalog||{};data.soundfonts=(data.soundfonts||[]).map(sf=>{const sfId=sf.id.replace('sf_','');const catEntry=catalog[sfId.toLowerCase()]||catalog[sfId];if(catEntry&&catEntry.instruments){return{...sf,presets:catEntry.instruments};}return sf;});}catch(e){console.warn('Catalog fetch error:',e);}setInstrumentSelectorData(data);}).catch(()=>{});},[instrumentRefreshKey]);useEffect(()=>{if(!instrumentDropdownTrackId)return;const handler=e=>{setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setInstrumentSearchQuery('');};document.addEventListener('click',handler);return()=>document.removeEventListener('click',handler);},[instrumentDropdownTrackId]);const GM_INSTRUMENTS=["Acoustic Grand Piano","Bright Acoustic Piano","Electric Grand Piano","Honky-tonk Piano","Electric Piano 1","Electric Piano 2","Harpsichord","Clavi","Celesta","Glockenspiel","Music Box","Vibraphone","Marimba","Xylophone","Tubular Bells","Dulcimer","Drawbar Organ","Percussive Organ","Rock Organ","Church Organ","Reed Organ","Accordion","Harmonica","Tango Accordion","Acoustic Guitar (nylon)","Acoustic Guitar (steel)","Electric Guitar (jazz)","Electric Guitar (clean)","Electric Guitar (muted)","Overdriven Guitar","Distortion Guitar","Guitar harmonics","Acoustic Bass","Electric Bass (finger)","Electric Bass (pick)","Fretless Bass","Slap Bass 1","Slap Bass 2","Synth Bass 1","Synth Bass 2","Violin","Viola","Cello","Contrabass","Tremolo Strings","Pizzicato Strings","Orchestral Harp","Timpani","String Ensemble 1","String Ensemble 2","Synth Strings 1","Synth Strings 2","Choir Aahs","Voice Oohs","Synth Voice","Orchestra Hit","Trumpet","Trombone","Tuba","Muted Trumpet","French Horn","Brass Section","Synth Brass 1","Synth Brass 2","Soprano Sax","Alto Sax","Tenor Sax","Baritone Sax","Oboe","English Horn","Bassoon","Clarinet","Piccolo","Flute","Recorder","Pan Flute","Blown Bottle","Shakuhachi","Whistle","Ocarina","Lead 1 (square)","Lead 2 (sawtooth)","Lead 3 (calliope)","Lead 4 (chiff)","Lead 5 (charang)","Lead 6 (voice)","Lead 7 (fifths)","Lead 8 (bass+lead)","Pad 1 (new age)","Pad 2 (warm)","Pad 3 (polysynth)","Pad 4 (choir)","Pad 5 (bowed)","Pad 6 (metallic)","Pad 7 (halo)","Pad 8 (sweep)","FX 1 (rain)","FX 2 (soundtrack)","FX 3 (crystal)","FX 4 (atmosphere)","FX 5 (brightness)","FX 6 (goblins)","FX 7 (echoes)","FX 8 (sci-fi)","Sitar","Banjo","Shamisen","Koto","Kalimba","Bag pipe","Fiddle","Shanai","Tinkle Bell","Agogo","Steel Drums","Woodblock","Taiko Drum","Melodic Tom","Synth Drum","Reverse Cymbal","Guitar Fret Noise","Breath Noise","Seashore","Bird Tweet","Telephone Ring","Helicopter","Applause","Gunshot"];// D7: bridge active → load instrument vào bridge tại channel router dùng cho
 // track (SonicMidiRouter.allocateChannel — cùng allocation scheduleMidiNoteDispatch/
@@ -2436,8 +2438,8 @@ stopAllPlayback();window.SonicSF.stopAll();stopAllNativeSfNotes();stopAllNativeV
 const ctx=getAudioContext();const elapsed=ctx.currentTime-startAudioTimeRef.current;const oldSpeed=activePlaybackSpeedRef.current;const ratio=oldSpeed/newSpeed;startBufferOffsetRef.current=startBufferOffsetRef.current+elapsed*oldSpeed;startOffsetTimeRef.current=(startOffsetTimeRef.current+elapsed)*ratio;startAudioTimeRef.current=ctx.currentTime;activePlaybackSpeedRef.current=newSpeed;}}),/*#__PURE__*/React.createElement("div",{onMouseDown:handleSubTabResizeMouseDown,className:"absolute bottom-0 left-0 right-0 h-1.5 cursor-ns-resize z-30 hover:bg-purple-500/50 transition-colors"})),st.selectionStart!==null&&st.selectionEnd!==null&&st.selectionEnd>st.selectionStart&&/*#__PURE__*/React.createElement("div",{className:"absolute top-0 bottom-0 border-l border-r border-amber-500 bg-amber-500/10 z-20 pointer-events-none",style:{left:`${Math.min(st.selectionStart,st.selectionEnd)*zoom}px`,width:`${Math.abs(st.selectionEnd-st.selectionStart)*zoom}px`}})))));})())),/*#__PURE__*/React.createElement("div",{className:"w-1 cursor-ew-resize hover:bg-cyan-500/50 active:bg-cyan-400 transition-colors shrink-0 z-10",onMouseDown:startColResize}),renderDock('right','Right')),renderDock('bottom','Bottom'),showMixer&&/*#__PURE__*/React.createElement("div",{className:"flex flex-col border-t border-zinc-700 bg-slate-900 shrink-0 select-none",style:{height:mixerHeight+'px'}},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between px-2 py-0.5 bg-zinc-800/80 shrink-0 cursor-ns-resize",onMouseDown:e=>{e.preventDefault();var startY=e.clientY;var startH=mixerHeight;var onMove=function(ev){var newH=Math.max(80,Math.min(400,startH-(ev.clientY-startY)));setMixerHeight(newH);localStorage.setItem('studio_mixer_height',newH.toString());};var onUp=function(){document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);}},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"grip-horizontal",className:"w-3 h-3 text-zinc-600"})),/*#__PURE__*/React.createElement("span",{className:"text-[10px] font-bold text-zinc-400 uppercase tracking-wider"},"MIXER")),/*#__PURE__*/React.createElement("button",{onClick:()=>setShowMixer(false),className:"p-0.5 rounded text-zinc-500 hover:text-zinc-200 hover:bg-zinc-700 transition"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"})))),/*#__PURE__*/React.createElement("div",{className:"flex-1 flex overflow-x-auto p-1.5 gap-1.5 items-stretch"},/*#__PURE__*/React.createElement(MasterStripConsole,{masterVolume:masterVolume,setMasterVolume:setMasterVolume,masterVolL:masterVolL,setMasterVolL:setMasterVolL,masterVolR:masterVolR,setMasterVolR:setMasterVolR,masterLink:masterLink,setMasterLink:setMasterLink,masterMuted:masterMuted,setMasterMuted:setMasterMuted,masterAutoVol:masterAutoVol,setMasterAutoVol:setMasterAutoVol,masterAutoOn:masterAutoOn,setMasterAutoOn:setMasterAutoOn,showMasteringModal:showMasteringModal,setShowMasteringModal:setShowMasteringModal,masteringSettings:masteringSettings,setMasteringSettings:setMasteringSettings,isPlaying:isPlaying}),activeTracks.length>0&&/*#__PURE__*/React.createElement("div",{className:"w-px bg-zinc-700 shrink-0 self-stretch mx-0.5"}),activeTracks.map(function(track,idx){return/*#__PURE__*/React.createElement(TrackStripConsole,{key:track.id,track:track,index:idx,onUpdateTrack:updateTrackProp,trackVuRefs:trackVuRefs});}))),/*#__PURE__*/React.createElement("div",{className:"flex flex-col border-t border-zinc-700 bg-slate-900 shrink-0 select-none",style:{height:mediaExplorerPanelHeight+'px',display:showMediaExplorer?'flex':'none'}},/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-between px-2 py-0.5 bg-zinc-800/80 shrink-0 cursor-ns-resize",onMouseDown:e=>{e.preventDefault();var startY=e.clientY;var startH=mediaExplorerPanelHeight;var onMove=function(ev){var newH=Math.max(120,Math.min(520,startH-(ev.clientY-startY)));setMediaExplorerPanelHeight(newH);localStorage.setItem('studio_media_explorer_height',newH.toString());};var onUp=function(){document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);}},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"grip-horizontal",className:"w-3 h-3 text-zinc-600"})),/*#__PURE__*/React.createElement("span",{className:"text-[10px] font-bold text-emerald-400 uppercase tracking-wider"},"Media Explorer (F6)")),/*#__PURE__*/React.createElement("button",{onClick:()=>setShowMediaExplorer(false),className:"p-0.5 rounded text-zinc-500 hover:text-zinc-200 hover:bg-zinc-700 transition"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"})))),/*#__PURE__*/React.createElement("div",{className:"flex-1 min-h-0 overflow-hidden bg-[#262626]"},/*#__PURE__*/React.createElement(MediaExplorerPanel,{height:mediaExplorerPanelHeight,clipboardRef:clipboardRef,active:showMediaExplorer}))));})(),/*#__PURE__*/React.createElement("div",{className:"h-9 bg-[#141414] border-t border-zinc-900 px-4 flex items-center justify-between text-[18px] text-zinc-500 select-none shrink-0"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-4"},/*#__PURE__*/React.createElement("span",null,"Status: ",isPlaying?'Playing':'Stopped'),activeTab!=='main'&&/*#__PURE__*/React.createElement("span",{className:"text-amber-400 font-semibold uppercase"},"Sub-Tab"),activeTab==='main'&&/*#__PURE__*/React.createElement("span",{className:"text-cyan-400 font-semibold uppercase"},"Track: ID ",selectedTrackId),selectionMode==='local'&&/*#__PURE__*/React.createElement("span",{className:"text-amber-400 font-semibold uppercase text-[18px]"},"Local Sel"),selectionMode==='global'&&/*#__PURE__*/React.createElement("span",{className:"text-purple-400 font-semibold uppercase text-[18px]"},"Global Sel"),hasAnySolo&&/*#__PURE__*/React.createElement("span",{className:"text-amber-500 font-semibold"},"Solo: ",tracks.filter(t=>t.solo).length," track(s)"),isLoopingSelection&&selectionMode==='local'&&/*#__PURE__*/React.createElement("span",{className:"text-emerald-400 font-semibold uppercase text-[18px]"},"Solo Loop"),isLoopingSelection&&selectionMode!=='local'&&/*#__PURE__*/React.createElement("span",{className:"text-cyan-400 font-semibold uppercase text-[18px]"},"Master Loop")),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1.5 ml-3"},/*#__PURE__*/React.createElement("span",{className:"text-[18px] font-bold text-zinc-400 uppercase"},"Bars:"),/*#__PURE__*/React.createElement("input",{type:"number",min:"0",value:beginBar,onChange:e=>{const b=parseInt(e.target.value)||0;setBeginBar(b);const 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 // (quét 8 bars hiển thị "0 đến 8"): nhập 8 → selection tới vạch 8.
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'+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 "+(selectorLoadedInst&&selectorLoadedInst.sfId===p._sfId&&selectorLoadedInst.bank===p.bank&&selectorLoadedInst.prog===p.program?"bg-amber-800/80 text-white ring-1 ring-amber-400/60":"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)"),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);},className:"flex-1 min-w-0 text-left px-3 py-1.5 text-xs bg-zinc-800 hover:bg-violet-800 text-zinc-200 flex items-center justify-between"},/*#__PURE__*/React.createElement("span",{className:"truncate"},v.name||v.id),/*#__PURE__*/React.createElement("span",{className:"text-[10px] text-cyan-400 shrink-0 ml-1"},v.type||"VST")))),filteredInstruments.vst.length>0&&/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500 px-3 py-1 mt-1 uppercase font-bold"},"VST Presets (.vstpreset)"),(window.SonicRuntime&&window.SonicRuntime.presets||[]).map((p,i)=>/*#__PURE__*/React.createElement("button",{key:"psd_"+i,onClick:()=>setTrackPreset(instrumentDropdownTrackId,p.id),className:"w-full text-left px-3 py-1 text-xs bg-zinc-800 hover:bg-emerald-800 text-zinc-300 flex items-center justify-between"},/*#__PURE__*/React.createElement("span",{className:"truncate"},p.name||p.id),/*#__PURE__*/React.createElement("span",{className:"text-[10px] text-emerald-400 shrink-0 ml-1"},"PRESET"))),/*#__PURE__*/React.createElement("button",{onClick:()=>{const inp=document.createElement('input');inp.type='file';inp.accept='.vstpreset,.fxp,.fxb,.dspreset';inp.onchange=()=>{const f=inp.files&&inp.files[0];if(!f)return;window.SonicAPI.uploadPreset(f).then(function(r){if(r&&r.success){if(window.SonicRuntime)window.SonicRuntime.refreshPresets();showToast('Đã upload preset: '+(r.original_name||r.name||''),'success');}else{showToast('Upload preset thất bại','error');}}).catch(function(err){showToast('Upload lỗi: '+(err.message||err),'error');});};inp.click();},className:"w-full text-left px-3 py-1 text-xs bg-zinc-800 hover:bg-teal-800 text-teal-300 border-t border-zinc-700",title:"Upload preset .vstpreset xuất từ native GUI"},"\u2B06 Upload preset (t\u1EEB native GUI...)"),!filteredInstruments.soundfonts.length&&!filteredInstruments.vst.length&&/*#__PURE__*/React.createElement("p",{className:"text-xs text-zinc-500 py-4 text-center"},"Kh\u00f4ng t\u00ecm th\u1ea5y nh\u1ea1c c\u1ee5 n\u00e0o"))));};// React onWheel is passive -> e.preventDefault() can't stop panel scroll, so the
 // ruler slips away from the cursor mid-scroll. Native capture listener (non-passive)
 // blocks scrolling whenever the wheel starts over a [data-sf-wheel] container.
 document.addEventListener('wheel',e=>{const t=e.target;if(t&&t.closest&&t.closest('[data-sf-wheel]'))e.preventDefault();},{passive:false,capture:true});const root=ReactDOM.createRoot(document.getElementById('root'));root.render(/*#__PURE__*/React.createElement(App,null));setTimeout(()=>lucide.createIcons(),300);
diff --git a/app/templates/index.html b/app/templates/index.html
index dba9630..b24cabe 100644
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -51,7 +51,7 @@
     <script src="/static/js/services/promptTemplateManager.js?v=202607281039"></script>
     <script src="/static/js/services/undoRedoEngine.js?v=202607290941"></script>
     <script src="/static/js/services/chordTheory.js?v=202608211300"></script>
-    <script src="/static/js/app.precompiled.js?v=202608292200" defer></script>
+    <script src="/static/js/app.precompiled.js?v=202608292201" defer></script>
     <link rel="stylesheet" href="/static/css/styles.css?v=202607271016">
     <style>
         :root {