def compose(self):
notes = self.create_melody()
tempo = int(1000000 / (self.bpm / 60.0))
elapsed = 0
with mido.MidiFile(ticks_per_beat=48, charset='utf-8') as midi:
melody = mido.MidiTrack()
melody.append(mido.MetaMessage('set_tempo', tempo=tempo))
for t in range(len(self.beats.pairs)):
time = int(self.beats.pairs[t][1] * 48 * 4 * self.rhythm.simple)
note_off = int(48 * 4 * self.rhythm.simple)
note_off = ((time + note_off) / note_off) * note_off - time
if t + 1 < len(self.beats.pairs):
note_off = min(note_off, int(self.beats.pairs[t + 1][1] * 48 * 4 * self.rhythm.simple - time))
melody.append(mido.Message('note_on', note=notes[t], time=time - elapsed))
melody.append(mido.Message('note_off', note=notes[t], time=note_off))
elapsed = time + note_off
midi.tracks.append(melody)
accom_track = Accom.create_midi_track(self.rhythm, self.beats.time, self.chords, self.accoms)
midi.tracks.append(accom_track)
return midi
0.125: {
'length': 0.125,
'notes': [0]
},
0.25: {
'length': 0.25,
'notes': [1, 2]
},
0.5: {
'length': 0.25,
'notes': [2]
},
0.75: {
'length': 0.25,
'notes': [0, 100]
},
}
with mido.MidiFile(ticks_per_beat=48, charset='utf-8') as midi:
track = Accom.create_midi_track(ts, 8, prog, pattern)
midi.tracks.append(track)
savepath = ''.join(
[random.choice(string.ascii_letters + string.digits)
for i in range(16)]) + '.mid'
if not os.path.exists('log'):
os.makedirs('log')
midi.save('log/' + savepath)
import melete.accom as Accom
import melete.rhythm as Rhythm
import melete.chord as Chord
ts = Rhythm.TimeSignature(4, 2)
c = Chord.Chord.from_name('C')
f = Chord.Chord.from_name('F')
f.inversion(1)
gsus4 = Chord.Chord.from_name('Gsus4')
gsus4.inversion(1)
prog = Chord.ChordProg(48, 4, [(c, 0), (f, 192), (gsus4, 384), (c, 576)])
pattern = {
0.125: {'length': 0.125, 'notes': [0]},
0.25: {'length': 0.25, 'notes': [1, 2]},
0.5: {'length': 0.25, 'notes': [2]},
0.75: {'length': 0.25, 'notes': [0, 100]},
}
with mido.MidiFile(ticks_per_beat=48, charset='utf-8') as midi:
track = Accom.create_midi_track(ts, 8, prog, pattern)
midi.tracks.append(track)
savepath = ''.join([random.choice(string.ascii_letters + string.digits) for i in range(16)]) + '.mid'
if not os.path.exists('log'):
os.makedirs('log')
midi.save('log/' + savepath)
