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feat(midi): import Standard MIDI Files with transactional undo (phase 104)

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Johannes Findeisen 2026-11-06 02:28:25 +01:00
commit f37ad8987a
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docs/ROADMAP.md
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@ -2286,12 +2286,12 @@ Implemented: a C99 atomic type-0/960-PPQN SMF exporter and GUI save chooser expo
Import type 0/1 PPQN MIDI notes onto the selected track or a new track, with safe parsing, explicit limits, tempo policy and one undoable prepared adoption.
### Tasks and acceptance criteria
- [ ] Implement and document the workflow with bounded validation and safe ownership.
- [ ] Pass meaningful core and GUI checks, including errors and persistence or undo.
- [ ] Commit this phase separately after validation.
- [x] Implement and document the workflow with bounded validation and safe ownership.
- [x] Pass meaningful core and GUI checks, including errors and persistence or undo.
- [x] Commit this phase separately after validation.
### Implementation status
Planned.
Implemented: bounded C99 type 0/1 PPQN notes import with running status, channel/velocity preservation, tick conversion, track merging and retained project tempo. File/Import MIDI and Create/Import MIDI add at the cursor on the current or a new track through one prepared undo edit. Export/import roundtrips, independent type-1 fixture, every truncation prefix, malformed/unsupported/bus/overflow rejection, allocation-failure rollback and GUI import/undo/redo/new-track/failed-adoption checks passed, together with the full core/reliability suite. Notes-only limits are explicit in MIDI_WORKFLOWS.md.
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