Incoming USB/BLE MIDI notes were dropping their channel and always playing the
generic default-synth pool, ignoring the mixer routing. Now the parser keeps the
channel nibble (exposed 1-based, 1..16) on InputAction.NoteOn/NoteOff, and the
ViewModel routes a channelled note through engine.busNoteOn/busNoteOff — sounding
the mixer track(s) whose midiChannel matches, through their instrument and full
insert chain, exactly like the on-screen keyboard. Channel-less sources (physical
keyboard) keep the previous audition path.
On the Tracker tab with punch-in armed, a MIDI note now also punches into the
focused cell, recording its own velocity and channel and advancing by the skip
step (punchNote gained velocity/channel parameters). Off the tracker tab or with
punch-in off, MIDI only auditions.
Note: routing is strict, so a note is audible only on a track whose MIDI channel
matches and that has an instrument assigned (new projects start with buses on the
empty channel 0).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
dfb6ee9c9b