def generate_music(track_dists, starts, time=(0.5 * 60 * 1000)):
''' produce new midi data from the distributions
this should probably be re-written browser-side '''
starts.reverse()
mid = MidiFile()
json_data = []
for dist in track_dists:
# create a new track for the generated music
track = MidiTrack()
mid.tracks.append(track)
# create a text version
json_track = []
# select the same first note as the original piece
start = starts.pop()
token = start
count = 0
while count < time:
for note in token.split('|'):
note = Message.from_str(note)
count += note.time
track.append(note)
json_track.append({
'note': note.note,
'velocity': note.velocity,
'time': note.time,
})
options = dist[token]
try:
token = weighted_choice(options)
except IndexError:
print('no followup found for token: %s' % token)
token = start
json_data.append(json_track)
mid.save('new.mid')
json.dump(json_data, open('new.json', 'w'))
track = MidiTrack()
# fname = "20th-century-fox.txt"
fname = "glich.txt"
with open(fname) as f:
lines = f.readlines()
for line in lines:
line = line.strip()
# print(line)
if line.startswith("Track"):
print(line)
track = MidiTrack()
mid.tracks.append(track)
msg = Message.from_str(
"control_change channel=0 control=7 value=100 time=5")
track.append(msg)
print msg
# elif line.startswith("program_change"):
# continue
# elif line.startswith("control_change"):
# continue
elif line.startswith("<meta"):
continue
else:
print(line)
msg = Message.from_str(line)
track.append(msg)
mid.save("glich.mid")