def main():
c=0
for filename in (glob.glob('drive/My Drive/Synth pop MIDI/*.mid')):
mtrack = Multitrack(filename)
mtrack.to_pretty_midi()
#mtrack = remove_short_tracks(mtrack)
orchestra = group_by_program(mtrack)
l=len(mtrack.tracks)
trackid=[x for x in range(l)]
newmtrack, inst = merge_instrument(mtrack,orchestra,trackid)
filename=filename[30:]
if len(newmtrack.tracks)==4:
c+=1
print(filename, len(newmtrack.tracks), inst, orchestra)
newmtrack.write('drive/My Drive/Synth pop MIDI/four tracks with drum sum/'+filename)
print(c)
def tempo_unify():
midi_collection = get_midi_collection()
root_dir = 'E:/free_midi_library/'
test_path = './test.mid'
unify_tempo = 90
original = Multitrack(test_path)
original_tempo = get_midi_info(original.to_pretty_midi())['tempo'][0]
merged_multi = get_merged(original)
tracks_dict = {}
length = 0
for track in merged_multi.tracks:
if track.pianoroll.shape[0] != 0:
length = track.pianoroll.shape[0]
old_pianoroll = track.pianoroll
for i in range(128):
for j in range(length):
print(track.pianoroll[j][i], end=' ')
print()
'''
tempo=np.full(track.pianoroll.shape[0], 6000),
# beat_resolution=int(60.0 / midi_data.estimate_tempo() * 100)
beat_resolution=int(60.0 / 6000 * 100)
# tempo=midi_data.get_tempo_changes()[1],
)
# %%
multitrack.write("temp.mid")
# %%
test_track = Multitrack("temp.mid",
tempo=6000,
beat_resolution=int(60.0 / 6000 * 100))
# %%
test_midi = test_track.to_pretty_midi()
# %%
# Play Midi
import pygame
pygame.init()
# %%
pygame.mixer.music.load(os.path.join(path_to_code, "Data/Train/chpn-p1.mid"))
pygame.mixer.music.play()
# %%
pygame.mixer.music.stop()
# %%
pygame.mixer.music.load(os.path.join(path_to_code, "temp.mid"))
def pianoroll2midi(pianoroll, file_path):
track = Track(pianoroll=pianoroll)
multitrack = Multitrack(tracks=[track], tempo=GLOBAL_VAR.MIDI_TEMPO)
multitrack.to_pretty_midi()
multitrack.write(file_path)
