python-midi example

midi.py

import midi #pip install python-midi (https://github.com/vishnubob/python-midi)

pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
on = midi.NoteOnEvent(tick=0, velocity=100, pitch=60)
track.append(on)
off = midi.NoteOffEvent(tick=100, pitch=60)
track.append(off)
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
midi.write_midifile("outfile.mid", pattern)