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- midi_play: scan PortMidi outputs for JUST_INTONATION_MIDI_OUT_NAME (default loopbe) or honor JUST_INTONATION_MIDI_DEVICE_ID; raise a RuntimeError that lists available outputs on failure; decode bytes device names; fix pitch_bend reset to pass explicit value 0 - README: MIDI signal path, Windows LoopBe/loopMIDI, macOS IAC, Linux ALSA hints, env vars, pitch-bend synth expectations Co-authored-by: endolith <endolith@gmail.com>
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Summary
midi_play.pywas hard‑wired to MIDI device id3and a name substringLoopBe, which breaks whenever driver order changes or you are not on Windows with LoopBe1. This branch documents the intended virtual‑cable → softsynth pipeline and selects the output device via a name scan or explicit environment variables.Code (
midi_play.py)midi.init(), resolve the PortMidi output device by:JUST_INTONATION_MIDI_DEVICE_ID(integer), if set; orJUST_INTONATION_MIDI_OUT_NAME(defaultloopbe, case‑insensitive).RuntimeErrorwith every available MIDI output and ids so you can pin…_DEVICE_IDwithout guessing.pitch_bend(0, channel=0)when resetting bend (explicit value; matchesOutput.pitch_bend(self, value=0, channel=0)).Documentation (
README.md)New “MIDI playback” section: signal path, why silence happens,
pygame/numpyinstall, Windows (LoopBe1 / loopMIDI + DAW input), macOS (IAC +JUST_INTONATION_MIDI_OUT_NAME=IAC), Linux (ALSA /aconnectsketch), env vars,PM_RECOMMENDED_OUTPUT_DEVICEpointer, and default ±2 semitone pitch‑bend expectation.Verification
pytest— 21 passed (unchanged test surface;midi_playis not imported by tests).