Backend sync effect (useEffect mount) was unconditionally
replacing mgr.presets with data.presets, destroying:
- Frontend-only default presets (12 vs backend's 7)
- User-defined presets in localStorage not yet synced to backend
Fix: merge backend presets by id — keep all local presets,
append any backend presets whose id doesn't exist locally.
User presets + frontend defaults are never lost.
Add 'Người dùng' category to filter dropdown. Filter logic
checks p.is_user_defined when this category is selected.
Shows only presets the user has created/added.
Use suggestions (filtered by getContextualSuggestions) instead
of promptMgr.presets (all). When MIDI item selected, only
Rearrange/Variation + favorites shown. When no MIDI item,
non-rearrange presets shown instead.
Replace horizontal suggestion chips (max 6/4) with vertical
scrollable list (max-h-36, no-scrollbar) showing ALL presets
from PromptTemplateManager (capped at 50). Header shows
'AI Suggestion' label. When MIDI item selected, MIDI item
name displayed in header. Each preset shows star/fav icon,
name, and category tag. Click fills the prompt textarea.
Keyboard handler useEffect has empty deps [], so selectedItemIds was
always captured as empty Set. Added selectedItemIdsRef to keep live
reference, matching pattern used by selectedClipIdRef.
- Ctrl+A already existed for selecting all timeline items across tracks
- Added Del/Backspace key handler for selectedItemIds: deletes all selected sections, MIDI items, and audio clips from the selected track(s)
- Clears selection after deletion and shows toast with count
Keyboard handler (useEffect [] deps) captures handleSaveSectionTab
from first render, which has sessionTabs = []. When section tab
is opened later, saved handleSaveSectionTab finds no tab and
returns silently. Added handleSaveSectionTabRef, updated on
every render, used in keyboard handler via ref.current.
Line 1163 called onSweepSelectStart which set up sweep
state (yellow selection rectangle). Mousemove then
selected all items in the sweep range. Changed to
onClearSelection = () => setSelectedItemIds(new Set())
which only clears selection without starting sweep.
First Ctrl+S handler (line 8066, handleExportSFS) catches
ALL Ctrl+S before second handler (line 8157, save section)
ever runs. Moved section-tab check into first handler:
activeTab.startsWith('session_') -> handleSaveSectionTab.
Main session Ctrl+S still exports SF (same as before).
Line 7942 checked activeTabRef.current !== 'main', which
is true for SECTION-TAB (session_xxx). Sub-tab block
only handles audio/image keys then unconditionally
returns at line 8005 -> Ctrl+A/S never reached.
Changed to exclude section tabs via
!activeTabRef.current.startsWith('session_').
Ctrl+S in SECTION-TAB (activeTab starts with session_):
calls handleSaveSectionTab(curTab).
Ctrl+A in MAIN/SECTION-TAB: collects sections, midiItems,
clips from activeTracksRef.current into selectedItemIds.
Ignores sub-tab contexts (PIANO_ROLL).
JSX rendering menu at line 17500 lacked the
!sessionTabs.some(s => s.id === activeTab) guard.
Added it - section tab context menu no longer offers
Insert Section (sections cannot contain section items).
_playNoteFluid called program_change synchronously at
call time, not at scheduled note time. startTrackPlayback
processes all MIDI items first, then all sections -> each
note's program_change overwritten by the last type processed.
All notes played with section instrument regardless of
actual time position. Moved program_change into doNote
(setTimeout callback) so it fires at correct time.
section cloned tracks have instrumentProgram:undefined.
Line 10283 defaulted to 0 -> FluidSynth program_change(ch,0)
-> plays whatever SoundFont is loaded (MAIN SF).
Added _isSectionClone flag; line 10283 skips program default
for section clones -> undefined -> _playNoteFluid silent return.
_playNoteFluid no-instrument branch previously called
_playNoteFallback (sine wave oscillator). Changed to
silent return. User explicitly requested no default sound.
Line 10283 defaulted to undefined when instrumentProgram
undefined, breaking Play for MAIN tracks with MIDI items
but no instrument. Restored: undefined ? instrumentProgram : 0.
Section sub-track (line 10393) keeps undefined -> oscillator
fallback to avoid loading MAIN SoundFont.
Revert two changes from 5d31563:
1. Explicit requestAnimationFrame in handlePlayPause (redundant,
useEffect already handles RAF start after setIsPlaying)
2. setCurrentTime(0) in handleEditSectionInTab (resets global
currentTime, interferes with MAIN session position)
Two fixes:
1. handlePlayPause: add explicit requestAnimationFrame(updatePlayhead)
after setIsPlaying(true) to ensure RAF starts immediately.
2. handleEditSectionInTab: add setCurrentTime(0) to reset playhead
to section start. Without this, currentTime may be outside
the section's timeline range (e.g. from main session playback).
Line 10283 same issue as 10393: when instrumentProgram is
undefined (section cloned tracks), program defaults to 0.
_playNoteFluid calls program_change(ch,0) on FluidSynth,
which loads program 0 from whatever SoundFont is loaded
(MAIN session's SF). Fix: pass undefined -> oscillator
fallback for all tracks without assigned instrument.
Line 10393 defaulted program to 0 when subTrack.instrumentProgram
was undefined (section clone with no instrument). _playNoteFluid
receives program=0, calls program_change(ch,0) on FluidSynth,
which picks program 0 from whatever SoundFont is loaded (MAIN
session's SF). Fix: pass undefined -> _playNoteFluid takes
oscillator fallback, no SoundFont loading.
815a6fa hid Synth when track has sections. But a track
can contain both section items AND midi items. Synth
applies to MIDI items regardless of sections. Section
instrument isolation is handled by section clone
nullifying all soundfont fields (9befc20).
...t in fallback branch copied soundfont_id, soundfont_bank,
soundfont_program, instrument_source from parent MAIN track
even though instrumentProgram and synth_engine were nulled.
FluidSynth picks up these fields and auto-loads the SoundFont.
Fix: override all soundfont/synth fields to null/undefined.
Previous fix f2ac70e inherited instrumentId/program/name
from parent MAIN track. This causes SECTION-TAB to auto-load
program 0 of whatever SoundFont is loaded on MAIN, even
though user didn't select any instrument for the section.
Section tracks now keep null instrument + synth_engine
undefined. User can still load instrument manually via
Synth button (routed by updateActiveTracks fix).
updateActiveTracksRef checks sessionTabs by currentActiveTab.
When activeTab is a PIANO_ROLL sub-tab (midi_xxx), none matches
-> falls to setTracks (main). Instrument changes are lost.
Fix: also check subTabs for PIANO_ROLL type, resolve parent
session tab via parent_tab_id, route to setSessionTabs.
Ctrl+Click handler toggled selection + set pending drag.
Once selected, drag system treated it as 'move selection'
instead of 'copy'. Removed selection toggle - Ctrl+Click
now only sets pending drag for copy operation.
When PIANO_ROLL sub-tab is opened from SECTION-TAB,
activeTab switches to midi_xxx, so activeTracks fell
back to main project tracks. Section trackIds don't
exist in main tracks -> dropdown empty, ghost layers
empty, instrument data wrong.
Fix: check subTabs for PIANO_ROLL type, resolve parent
section tab from parent_tab_id, return its tracks.
handleEditSectionInTab overwrote midiItems: [] when cloning
section.tracks, stripping all MIDI data from section context.
PianoRollTabEditor uses activeTracks which resolves section
tracks -- midiItems must be preserved for dropdown switcher,
ghost note extraction, and instrument settings to work.
Scanner: new instance with existing sf_scan_state.json
did not populate in-memory _catalog. Now re-inspects
unchanged files to fill catalog on first scan.
Frontend: left column reads instrumentSelectorData.
soundfonts instead of sfPresets (null when no presets).
Click SF in left column triggers on-demand fetch.
Modal max-w-md -> max-w-4xl. Font 14px (text-sm).
Left column: soundfont list. Right column: instruments
of selected SF. All Instruments view when none selected.
Search filters both columns.
Ctrl+click toggle selection THEN drag started -> selIds.has(itemId)
returned false because the item was just removed from snapshot.
Fix: snapshot selectedItemIds BEFORE toggle, pass to pendingDrag.
Drag always copies the original group; toggle is only visual.
Same bug as copy: return statement only updated
targetTrackId/drag.trackId, discarding items from other tracks.
Fix: always return { sections: midSections, midiItems: midMidis }
for ALL tracks in the map (arrays are sliced per-track).
The updateActiveTracks return statement was:
return t.id === trackId ? updated : t;
This discarded duplicate items that belong to other tracks.
Fix: always return updated{ sections, midiItems, clips }
for EVERY track in the map (already sliced from originals,
so unchanged tracks are no-ops).
React batches setSelectedItemIds, so when handleSetPendingDrag
snapshots selectedItemIds, the just-toggled item isn't included
yet. Fix: pass wasAlreadySelected boolean from TimelineTrack
mousedown; handleSetPendingDrag manually applies the toggle
(add/delete) to the snapshot so drag uses correct selection.
The useEffect with [] deps captured handleSectionItemDragStart
from initial render, which read an empty selectedItemIds.
Added handleSectionItemDragStartRef that stays current across
renders; the effect calls ref.current instead of the closure.
3dtours