diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx
index cc75196..ca519d2 100644
--- a/app/static/js/app.jsx
+++ b/app/static/js/app.jsx
@@ -25132,6 +25132,7 @@ const App = () => {
                     trkCh,
                     track.synth_engine
                   );
+                  scheduleNoteExpressionCC11(track, note, trkCh, context.currentTime, delay, noteDurSec);
                 }
                 // Trigger VU meter flash when the note starts playing
                 setTimeout(() => {
@@ -25157,6 +25158,7 @@ const App = () => {
                     trkCh,
                     track.synth_engine
                   );
+                  scheduleNoteExpressionCC11(track, note, trkCh, context.currentTime, 0, remainingDurMs / 1000);
                 }
                 // Trigger VU meter flash instantly
                 if (window.triggerMidiVuActivity) {
@@ -25280,6 +25282,7 @@ const App = () => {
                           subCh,
                           subTrack.synth_engine
                         );
+                        scheduleNoteExpressionCC11(subTrack, note, subCh, context.currentTime, delay, playDurMs / 1000);
                       }
                       // Trigger VU meter flash đúng nhịp (cả subTrack — VU
                       // section tab + parent track — VU MAIN): MIDI section đi
@@ -25309,6 +25312,7 @@ const App = () => {
                           subCh,
                           subTrack.synth_engine
                         );
+                        scheduleNoteExpressionCC11(subTrack, note, subCh, context.currentTime, 0, remainingDurMs / 1000);
                       }
                       if (window.triggerMidiVuActivity) {
                         // VU key theo CONTEXT (tách MAIN vs SECTION — 07:20)
@@ -25415,6 +25419,7 @@ const App = () => {
                   lcCh,
                   track.synth_engine
                 );
+                scheduleNoteExpressionCC11(track, note, lcCh, context.currentTime, delay, noteDurSec);
               }
             } else {
               const remainingDurMs = (noteEndSec - offsetTime) * 1000;
@@ -25429,6 +25434,7 @@ const App = () => {
                   lcCh,
                   track.synth_engine
                 );
+                scheduleNoteExpressionCC11(track, note, lcCh, context.currentTime, 0, remainingDurMs / 1000);
               }
             }
           }
diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js
index 16261e9..ab6024b 100644
--- a/app/static/js/app.precompiled.js
+++ b/app/static/js/app.precompiled.js
@@ -1953,11 +1953,11 @@ const midiItems=track.midiItems||[];const nativeSf=isStandaloneSf()&&isSfTrackEn
 ensureMidiCapture(track,activeTrackNodesRef.current[track.id]);var trkCh=assignTrackMidiChannel(track,allPlayTracks);// Ensure instrument is loaded in FluidSynth
 if(window.SonicSF&&track.synth_engine&&track.synth_engine.type==='soundfont'&&track.synth_engine.soundfont_id){window.SonicSF.selectInstrument(trkCh,track.synth_engine.soundfont_bank||0,track.synth_engine.soundfont_program||0,track.synth_engine.soundfont_id);}const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;midiItems.forEach(item=>{const itemEndSec=item.startTime+(item.duration||4);const notes=item.notes||[];notes.forEach(note=>{// note start/duration is in beats (for MIDI items)
 const noteStartSec=item.startTime+(note.start_beat||0)*secondsPerBeat;if(noteStartSec>=itemEndSec)return;// skip notes outside item's visual duration
-const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime<noteEndSec){const durationMs=noteDurSec*1000;const program=track._isSectionClone?track.instrumentProgram:track.instrumentProgram!==undefined?track.instrumentProgram:0;if(offsetTime<noteStartSec){const delay=noteStartSec-offsetTime;const startTime=context.currentTime+delay;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durationMs,startTime,program,gainNode,trkCh,track.synth_engine);}// Trigger VU meter flash when the note starts playing
+const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime<noteEndSec){const durationMs=noteDurSec*1000;const program=track._isSectionClone?track.instrumentProgram:track.instrumentProgram!==undefined?track.instrumentProgram:0;if(offsetTime<noteStartSec){const delay=noteStartSec-offsetTime;const startTime=context.currentTime+delay;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durationMs,startTime,program,gainNode,trkCh,track.synth_engine);scheduleNoteExpressionCC11(track,note,trkCh,context.currentTime,delay,noteDurSec);}// Trigger VU meter flash when the note starts playing
 setTimeout(()=>{// ⚠️ Guard: stop → setTimeout sót không được fire (VU nhảy
 // sau khi âm đã dừng — user bug 05:45).
 if(!isPlayingRef.current)return;if(window.triggerMidiVuActivity){// VU key theo CONTEXT (tách MAIN vs SECTION — user 07:20)
-window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}},delay*1000);}else{const playOffset=offsetTime-noteStartSec;const remainingDurMs=(noteEndSec-offsetTime)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,gainNode,trkCh,track.synth_engine);}// Trigger VU meter flash instantly
+window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}},delay*1000);}else{const playOffset=offsetTime-noteStartSec;const remainingDurMs=(noteEndSec-offsetTime)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,gainNode,trkCh,track.synth_engine);scheduleNoteExpressionCC11(track,note,trkCh,context.currentTime,0,remainingDurMs/1000);}// Trigger VU meter flash instantly
 if(window.triggerMidiVuActivity){window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}}}});});}}// If track has instrumentId set but no MIDI items, create scheduled oscillators
 if(track.instrumentId&&midiItems.length===0&&track.buffer){// Play audio normally (the buffer has the audio data)
 // This block is intentionally empty - audio clips already play above
@@ -1970,7 +1970,7 @@ const subClips=subTrack.clips||[];subClips.forEach(clip=>{if(!clip.buffer)return
 const activeStart=Math.max(clipStartMain,secStart);const activeEnd=Math.min(clipEndMain,secEnd);if(activeStart<activeEnd&&offsetTime<activeEnd){const source=context.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(subNode);if(offsetTime<activeStart){const delay=activeStart-offsetTime;const playOffset=activeStart-clipStartMain;const playDuration=activeEnd-activeStart;source.start(context.currentTime+delay,playOffset*(clip.speed||1.0),playDuration);activeSourcesRef.current.push(source);}else{const playOffset=offsetTime-clipStartMain;const playDuration=activeEnd-offsetTime;source.start(context.currentTime,playOffset*(clip.speed||1.0),playDuration);activeSourcesRef.current.push(source);}}});// 2. Play MIDI items in subTrack
 const subMidiItems=subTrack.midiItems||[];const subNativeSf=isStandaloneSf()&&isSfTrackEngine(subTrack.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const subNativeVst=isStandaloneSf()&&isVstTrackEngine(subTrack.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if(subMidiItems.length>0&&(window.SonicSF||subNativeSf||subNativeVst)){if(subNativeSf||subNativeVst){scheduleNativeTrack(subTrack,offsetTime,context,subNode,bpm,{baseOffsetSec:secStart,limitSec:secEnd,playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});return;// native render → audio buffer (không qua WASM per-note)
 }subMidiItems.forEach(item=>{const notes=item.notes||[];notes.forEach(note=>{const noteStartSecLocal=item.startTime+(note.start_beat||0)*secondsPerBeat;const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteStartMain=secStart+noteStartSecLocal;const noteEndMain=noteStartMain+noteDurSec;// Only play if the note starts inside the Section item bounds and hasn't finished yet
-if(noteStartMain>=secStart&&noteStartMain<secEnd&&offsetTime<noteEndMain){const notePlayEndMain=Math.min(noteEndMain,secEnd);const program=subTrack.instrumentProgram;var subCh=assignTrackMidiChannel(subTrack,secTracks);if(offsetTime<noteStartMain){const delay=noteStartMain-offsetTime;const startTime=context.currentTime+delay;const playDurMs=(notePlayEndMain-noteStartMain)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(subTrack,note.pitch||60,note.velocity||0.8,playDurMs,startTime,program,subNode,subCh,subTrack.synth_engine);}// Trigger VU meter flash đúng nhịp (cả subTrack — VU
+if(noteStartMain>=secStart&&noteStartMain<secEnd&&offsetTime<noteEndMain){const notePlayEndMain=Math.min(noteEndMain,secEnd);const program=subTrack.instrumentProgram;var subCh=assignTrackMidiChannel(subTrack,secTracks);if(offsetTime<noteStartMain){const delay=noteStartMain-offsetTime;const startTime=context.currentTime+delay;const playDurMs=(notePlayEndMain-noteStartMain)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(subTrack,note.pitch||60,note.velocity||0.8,playDurMs,startTime,program,subNode,subCh,subTrack.synth_engine);scheduleNoteExpressionCC11(subTrack,note,subCh,context.currentTime,delay,playDurMs/1000);}// Trigger VU meter flash đúng nhịp (cả subTrack — VU
 // section tab + parent track — VU MAIN): MIDI section đi
 // SF → masterBus.input (không qua sub-node analyser) →
 // VU track chỉ nhảy qua midiVuActivity. (Bị mất khi
@@ -1978,7 +1978,7 @@ if(noteStartMain>=secStart&&noteStartMain<secEnd&&offsetTime<noteEndMain){const
 setTimeout(()=>{// ⚠️ Guard: stop → setTimeout sót không được fire (VU
 // nhảy sau khi âm đã dừng — user bug 05:45).
 if(!isPlayingRef.current)return;if(window.triggerMidiVuActivity){// VU key theo CONTEXT (tách MAIN vs SECTION — 07:20)
-window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+subTrack.id,note.velocity||0.8);window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}},delay*1000);}else{const remainingDurMs=(notePlayEndMain-offsetTime)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(subTrack,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,subNode,subCh,subTrack.synth_engine);}if(window.triggerMidiVuActivity){// VU key theo CONTEXT (tách MAIN vs SECTION — 07:20)
+window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+subTrack.id,note.velocity||0.8);window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}},delay*1000);}else{const remainingDurMs=(notePlayEndMain-offsetTime)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(subTrack,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,subNode,subCh,subTrack.synth_engine);scheduleNoteExpressionCC11(subTrack,note,subCh,context.currentTime,0,remainingDurMs/1000);}if(window.triggerMidiVuActivity){// VU key theo CONTEXT (tách MAIN vs SECTION — 07:20)
 window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+subTrack.id,note.velocity||0.8);window.triggerMidiVuActivity((activeTab&&activeTab.startsWith('session_')?'_sess_':'')+track.id,note.velocity||0.8);}}}});});}});});}});updateSfRouting();};// Solo playback for Local Selection Loop (LOOP_MAKER.md §2.2)
 const startLocalTrackPlayback=(trackId,offsetTime)=>{const context=getAudioContext();// V12: parity với startTrackPlayback — loop restart (solo/local) sau
 // stopAllPlayback(): hủy STOP#2 + báo PLAY (nếu không C++ transportStopped
@@ -1991,7 +1991,7 @@ const gainNode=getOrCreateTrackNode(track,context);const pannerNode=activeTrackN
 // chain for audio clips (double path: with + without FX).
 const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(offsetTime<clipStart){const delay=clipStart-offsetTime;source.start(context.currentTime+delay,0);activeSourcesRef.current.push(source);}else if(offsetTime<clipEnd){const playOffset=offsetTime-clipStart;source.start(context.currentTime,playOffset*(clip.speed||1.0));activeSourcesRef.current.push(source);}});// MIDI items playback
 const midiItems=track.midiItems||[];const nativeSf=isStandaloneSf()&&isSfTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());const nativeVst=isStandaloneSf()&&isVstTrackEngine(track.synth_engine)&&!(window.SonicMidiRouter&&window.SonicMidiRouter.isBridgeActive());if((track.type==='MIDI'||midiItems.length>0)&&(window.SonicSF||nativeSf||nativeVst)){if(nativeSf||nativeVst){scheduleNativeTrack(track,offsetTime,context,gainNode,bpm,{playheadNow:()=>startOffsetTimeRef.current+(getAudioContext().currentTime-startAudioTimeRef.current),sources:activeSourcesRef.current,isActive:()=>!!isPlayingRef.current});return;// native render → audio buffer (không qua WASM per-note)
-}var lcCh=assignTrackMidiChannel(track,tracks);const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;midiItems.forEach(item=>{const notes=item.notes||[];notes.forEach(note=>{const noteStartSec=item.startTime+(note.start_beat||0)*secondsPerBeat;const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime<noteEndSec){const durationMs=noteDurSec*1000;const program=track.instrumentProgram!==undefined?track.instrumentProgram:0;if(offsetTime<noteStartSec){const delay=noteStartSec-offsetTime;const startTime=context.currentTime+delay;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durationMs,startTime,program,gainNode,lcCh,track.synth_engine);}}else{const remainingDurMs=(noteEndSec-offsetTime)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,gainNode,lcCh,track.synth_engine);}}}});});}};const schedulePianoRollMidi=(st,offsetSeconds,notesOverride)=>{if(st.type!=='PIANO_ROLL')return;const context=getAudioContext();_nativePlayEpoch++;// new play — vô hiệu doHardStop đang fade
+}var lcCh=assignTrackMidiChannel(track,tracks);const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;midiItems.forEach(item=>{const notes=item.notes||[];notes.forEach(note=>{const noteStartSec=item.startTime+(note.start_beat||0)*secondsPerBeat;const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime<noteEndSec){const durationMs=noteDurSec*1000;const program=track.instrumentProgram!==undefined?track.instrumentProgram:0;if(offsetTime<noteStartSec){const delay=noteStartSec-offsetTime;const startTime=context.currentTime+delay;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,durationMs,startTime,program,gainNode,lcCh,track.synth_engine);scheduleNoteExpressionCC11(track,note,lcCh,context.currentTime,delay,noteDurSec);}}else{const remainingDurMs=(noteEndSec-offsetTime)*1000;if(window.SonicSF){scheduleMidiNoteDispatch(track,note.pitch||60,note.velocity||0.8,remainingDurMs,context.currentTime,program,gainNode,lcCh,track.synth_engine);scheduleNoteExpressionCC11(track,note,lcCh,context.currentTime,0,remainingDurMs/1000);}}}});});}};const schedulePianoRollMidi=(st,offsetSeconds,notesOverride)=>{if(st.type!=='PIANO_ROLL')return;const context=getAudioContext();_nativePlayEpoch++;// new play — vô hiệu doHardStop đang fade
 restorePendingFadeSession();// V17: huy fade dang treo — replay khong bi dip gain
 // V10: piano roll loop restart cũng gọi stopAllPlayback() trước (STOP#1 →
 // bridge transportStopped=true) → mọi note-on bị drop nếu không PLAY lại.
diff --git a/app/templates/index.html b/app/templates/index.html
index b24cabe..f3d33b2 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=202608292201" defer></script>
+    <script src="/static/js/app.precompiled.js?v=202608302200" defer></script>
     <link rel="stylesheet" href="/static/css/styles.css?v=202607271016">
     <style>
         :root {