A Standard MIDI File (SMF) reader plus a player that voices each note through
audio.synthesizeTone - .mid is a small, patent-free, well-documented event format
(timing and note-on/note-off, not audio), so reading one is ordinary format engineering,
and playback needed exactly the instrument item 120's waveform synth already supplies: a
crude but real, entirely generated-not-borrowed one, closer to a chiptune cover than a
sampled orchestra.
A Standard MIDI File (SMF) reader plus a player that voices each note through
audio.synthesizeTone-.midis a small, patent-free, well-documented event format (timing and note-on/note-off, not audio), so reading one is ordinary format engineering, and playback needed exactly the instrument item 120's waveform synth already supplies: a crude but real, entirely generated-not-borrowed one, closer to a chiptune cover than a sampled orchestra.