def label_audio(self):
# audio generated by re-interpretting the labels.
tmp_path = "/tmp/tmp_mp3.mp3"
new_midi = midi_inspect.midiFromLabels(self.labels())
midi.write_midifile(tmp_path, new_midi)
os.system("timidity %s" % tmp_path)
os.system("rm %s" % tmp_path)
def test_1():
print("[%s:%d] test_1()" % \
(os.path.basename(libs.thisfile()), libs.linenum()
), file=sys.stderr)
file = "test.mid"
pattern = midi.Pattern(resolution=960) #このパターンがmidiファイルに対応しています。
track = midi.Track() #トラックを作ります
pattern.append(track) #パターンに作ったトラックを追加します。
ev = midi.SetTempoEvent(tick=0, bpm=120) #テンポを設定するイベントを作ります
track.append(ev) #イベントをトラックに追加します。
e = midi.NoteOnEvent(tick=0, velocity=100,
pitch=midi.G_4) #ソの音を鳴らし始めるイベントを作ります。
track.append(e)
e = midi.NoteOffEvent(tick=960, velocity=100,
pitch=midi.G_4) #ソの音を鳴らし終えるイベントを作ります。
track.append(e)
eot = midi.EndOfTrackEvent(tick=1) #トラックを終えるイベントを作ります
track.append(eot)
midi.write_midifile(file, pattern) #パターンをファイルに書き込みます。
def main():
usage = "%prog [options] <corpus-filename> <out-filename>"
description = "Produces a MIDI file from one of the files of the "\
"Kostka-Payne corpus compiled by David Temperley. "\
"<corpus-filename> may be either a path to the file or the "\
"name of a file in the corpus (which is stored within the project)."
parser = OptionParser(description=description, usage=usage)
options, arguments = parser.parse_args()
if len(arguments) < 1:
print >>sys.stderr, "You must specify an input filename"
sys.exit(1)
elif len(arguments) < 2:
print >>sys.stderr, "You must specify an output midifile name"
sys.exit(1)
filename = arguments[0]
outname = arguments[1]
# Read in the input file
seq = DataSequence.from_file(filename)
# Produce a midi stream from the data sequence
mid = seq.to_midi()
# Output the midi file
write_midifile(mid, outname)
def matrixToMidi(self, matrix, name="example"):
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
tickCounter = 0
for i in range(len(matrix)):
for j in range(len(matrix[i])):
if (matrix[i][j] == 0).any():
if not (matrix[i][j] == 0).all():
#print("Couple found: ")
#print(matrix[i][j])
#print("Response: a zero")
event = midi.NoteOffEvent(tick=tickCounter,
pitch=j + self._lowerBound)
track.append(event)
tickCounter = 0
#else:
#print("Couple found: ")
#print(matrix[i][j])
#print("Response: [0, 0]")
else:
#print("Couple found: ")
#print(matrix[i][j])
#print("Response: [1, 1]")
velocity = int(matrix[i][j][1])
event = midi.NoteOnEvent(tick=tickCounter,
velocity=velocity,
pitch=j + self._lowerBound)
track.append(event)
tickCounter = 0
tickCounter = tickCounter + 1
endOfTrack = midi.EndOfTrackEvent(tick=1)
track.append(endOfTrack)
#print(pattern)
midi.write_midifile("generated/abc{}.mid".format(name), pattern)
def main():
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
pitchs = [-5,-5,-6,1,2,3,6,5,3,2,1,1,1,2,1,-7,1,4,-6,1,3,3,2,2,2,3,2,0,2,5,-7,2,3,2,1,1,1,2,1,-7,1,4,-6,1,-6,-6,-5,-5,-5,-5,-6,1,2,3,6,5,3,2,1,1,1,2,1,-7,1,4,-6,1,3,3,2,2,2,3,2,0,2,5,-7,2,3,2,1,1,1,2,1,-7,1,4,-6,1,2,2,1]
convert = {0:2, 1:1, 2:3, 3:5, 4:6, 5:8, 6:10, -5:-4, -6:-2, -7:0}
pitchs = [convert[x] for x in pitchs]
pitchs = [p+60 for p in pitchs]
tempos = [2,2,2,2,2,4,2,4,2,2,2,6,2,2,2,2,2,4,2,4,2,2,2,6,2,2,2,2,2,4,2,4,2,2,2,6,2,2,2,2,2,4,2,4,2,2,2,6,2,2,2,2,2,4,2,4,2,2,2,6,2,2,2,2,2,4,2,4,2,2,2,6,2,2,2,2,2,4,2,4,2,2,2,6,2,2,2,2,2,4,2,4,2,2,2]
# tempos = [2*x for x in tempos]
print(len(pitchs))
print(len(tempos))
# repeats = [4, 3, 6, 3]
print('resolution = ', pattern.resolution)
idx = 0
hmn = [0]
pitchs = [tuple(p+i for i in hmn) for p in pitchs]
print(pitchs)
for _ in range(100):
for ps, t in zip(pitchs, tempos):
for p in ps:
track_append(track, ON, 0, p)
for idx, p in enumerate(ps):
track_append(track, OFF, 55*t if idx==0 else 0, p)
track_append(track, EOT, tick=1)
midi.write_midifile("shoushou.mid", pattern)
def create_midi(text: str, sample_path: str, out_path: str):
midifile = midi.read_midifile(sample_path)
track = midifile[0][:]
target = barcode_to_bin(create_barcode(text, "tmp"))
target = [0] * 10 + target
pos = 0
for v in target:
for i in range(80, 100):
on = midi.NoteOnEvent(tick=0, velocity=1, pitch=i if v else 0)
track.insert(pos, on)
pos += 1
track.insert(pos, midi.NoteOnEvent(tick=40, velocity=1, pitch=0))
pos += 1
for i in range(80, 100):
off = midi.NoteOffEvent(tick=0, pitch=i if v else 0)
track.insert(pos, off)
pos += 1
for i in range(pos, len(track) - 1):
track.pop(pos)
midifile.append(track)
midi.write_midifile(out_path, midifile)
def convertFolder(folderPath, outputName, addDelay):
"""
Read the ini file and convert the midi file to the standard events
"""
#read the ini file
try:
metadata = readIni(os.path.join(folderPath, INI_NAME))
delay = float(metadata["delay"]) / 1000 if "delay" in metadata else 0.
if not metadata["pro_drums"] or metadata["pro_drums"] != "True":
warnings.warn("song.ini doesn't contain pro_drums = True")
except:
warnings.warn("song.ini not found")
if not addDelay or not delay:
delay = 0
# Read the midi file
pattern = midi.read_midifile(os.path.join(folderPath, PS_MIDI_NAME))
# clean the midi
pattern = cleanMidi(pattern, delay=delay)
# Write the resulting file
midi.write_midifile(os.path.join(folderPath, outputName), pattern)
def midiExport(self, mainWindowInstance):
filename = QtGui.QFileDialog.getSaveFileName(filter="*.mid")
try:
if filename:
with open(filename, "wb") as f:
try:
outputPattern = midiwrite.Pattern()
outputTrack = midiwrite.Track()
eventList = []
trackName = "MeeBlip Patch"
trackNameEvent = midiwrite.TrackNameEvent(name=trackName)
eventList.append(trackNameEvent)
for index in (k for k in xrange(48, 80) if k not in range(56, 58) + range(62, 65)):
ccEvent = midiwrite.ControlChangeEvent(channel=1)
ccEvent.set_control(index)
ccEvent.set_value(self.currentPatch.patchCCDict[index])
eventList.append(ccEvent)
for event in eventList:
outputTrack.append(event)
outputPattern.append(outputTrack)
midiwrite.write_midifile(f, outputPattern)
except IOError as (errno, strerror):
QtGui.QMessageBox.warning(mainWindowInstance, "File write error: %s" % errno,
"Error writing file %s:\n %s" % (unicode(filename), unicode(strerror)))
except:
QtGui.QMessageBox.warning(mainWindowInstance, "File write error", "Unknown error writing to file.")
def file_exclude(file_path, instrument_list):
'''Delete all the instruments claimed in 'instrument_list'
and hold the others in the midi file whose path
is 'file_path' '''
if file_path[-4:] != ".mid" and file_path[-4:] != ".MID":
print("Invalid midi file!")
return
else:
output_name = file_path[0:-4] + '_processed.mid'
pattern = midi.read_midifile(file_path)
pattern.make_ticks_abs()
exclude_instru = []
try:
for i in instrument_list:
exclude_instru.append(MIDI_INSTRUMENT.index(i))
except ValueError:
print('Please select instrument among: ' + str(MIDI_INSTRUMENT))
return
for i in exclude_instru:
pattern = delete_track(pattern, instrument=i)
pattern.make_ticks_rel()
midi.write_midifile(output_name, pattern)
def splitIntoBars(pr1, pr2, pr3):
ret = []
ret2 = []
flag = False
(r1,c1) = pr1.shape
(r2,c2) = pr2.shape
(r3,c3) = pr3.shape
sizes = [r1, r2, r3]
rows = min(sizes)
if r1 != r2 or r1 != r3:
pr1 = pr1[:rows, :]
pr2 = pr2[:rows, :]
pr3 = pr3[:rows, :]
i = 1
while rows >= i*16:
midi.write_midifile("chroma_temp.mid", noteStateMatrixToMidi(pr2[(i)*16-16 : (i)*16,:]))
midi_data = pretty_midi.PrettyMIDI('chroma_temp.mid')
try:
chroma = midi_data.get_chroma(fs=1.0/midi_data.get_end_time())
ret.append([pr1[(i)*16-16 : (i)*16,:], pr2[(i)*16-16 : (i)*16,:], pr3[(i)*16-16 : (i)*16,:]])
ret2.append(chroma)
except ZeroDivisionError:
flag = True
i += 1
return np.asarray(ret), np.asarray(ret2), flag
def sample_midi(states, low=24, high=102, filename='new_music'):
scale, last_update = 55, 0
data = midi.Pattern()
current = midi.Track()
data.append(current)
spectrum = high - low
states = np.array(states)
previous = [0 for i in range(spectrum)]
for t, state in enumerate(states + [previous[:]]):
off, on = [], []
for i in range(spectrum):
n = state[i]
p = previous[i]
if (p == 1):
if (n == 0):
off.append(i)
elif (n == 1):
on.append(i)
for note in off:
current.append(
midi.NoteOffEvent(tick=(t - last_update) * scale,
pitch=note + low))
last_update = t
for note in on:
current.append(
midi.NoteOnEvent(tick=(t - last_update) * scale,
velocity=40,
pitch=note + low))
previous = state
end = midi.EndOfTrackEvent(tick=1)
current.append(end)
midi.write_midifile('{}.mid'.format(filename), data)
def numpy2midi(numpy_path, filename, dur=100, velo=50, inst=1):
"""
A numpy file that represents tones for a melody gets converted into a
midi file
:param numpy_path: path of the numpy file
:param filename: filename for midi output
:param dur: duration of every tone (equidistant)
:param velo: velocity of every tone
:param inst: instrument (see:
https://en.wikipedia.org/wiki/General_MIDI#Program_change_events)
"""
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
data = np.loadtxt(numpy_path, dtype=np.int16)
track.append(midi.ProgramChangeEvent(tick=0, channel=0, data=[inst]))
# make equidistant tones with fixed velocity
for d in data:
track.append(midi.NoteOnEvent(tick=0, channel=0, data=[d, velo]))
track.append(midi.NoteOffEvent(tick=dur, channel=0, data=[d, velo]))
track.append(midi.EndOfTrackEvent(tick=1))
midi.write_midifile(filename + ".mid", pattern)
def record(filename):
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
port = get_port()
try:
while True:
event = read_event()
if event:
evtyp = event.name
tick = event.tick
velocity = event.velocity
pitch = event.pitch
track.append(event)
if port and port.isOpen():
port.write(event)
print(evtyp, 'tick:%s' % tick, 'velocity: %s' % velocity,
'pitch: %s' % pitch)
finally:
eot = midi.EndOfTrackEvent(tick=1)
if pattern and track:
track.append(eot)
if port and port.isOpen():
port.write(eot)
port.close()
midi.write_midifile(filename, pattern)
else:
print "S:omething's All F****d Up."
def main():
rootdir = './130000_Pop_Rock_Classical_Videogame_EDM_MIDI_Archive[6_19_15]/Metal_Rock_rock.freemidis.net_MIDIRip/midi/i/iron_maiden/'
for subdir, dirs, files in os.walk(rootdir):
for file in files:
pattern = midi.read_midifile(rootdir + file)
bass = midi.Pattern()
drum = midi.Pattern()
for track in pattern:
for event in track:
if type(event) == midi.events.TrackNameEvent:
trackName = event.text.lower()
if trackName.find('bass') != -1:
bass.append(track)
if trackName.find('drum') != -1:
drum.append(track)
midi.write_midifile('./bassMIDI/bass_' + file, bass)
midi.write_midifile('./drumMIDI/drum_' + file, drum)
return
def main():
usage = "%prog [options] <in-file>"
description = "Play music using the Harmonical. This allows you to "\
"play music specified precisely in the tonal space. By default, "\
"plays back the input, but can also output to a file."
parser = OptionParser(usage=usage, description=description)
parser.add_option('-o', '--output', dest="outfile", action="store", help="output the result to a wave file instead of playing back.")
parser.add_option('-m', '--midi', dest="midi", action="store_true", help="generate midi data, not audio. Depends on the input format supporting midi file generation.")
options, arguments = parse_args_with_config(parser)
filename = arguments[0]
# Load up the input file
infile = HarmonicalInputFile.from_file(filename)
if options.midi:
midi = infile.render_midi()
if options.outfile is not None:
# Output a midi file
write_midifile(midi, options.outfile)
print >>sys.stderr, "Saved midi data to %s" % options.outfile
else:
print >>sys.stderr, "Playing..."
play_stream(midi, block=True)
else:
print >>sys.stderr, "Generating audio..."
audio = infile.render()
if options.outfile is not None:
# Output to a file instead of playing
save_wave_data(audio, options.outfile)
print >>sys.stderr, "Saved data to %s" % options.outfile
else:
print >>sys.stderr, "Playing..."
play_audio(audio, wait_for_end=True)
def save(self, path=None):
"""
Store self at self.path
"""
if path is not None:
self.path = path
midi.write_midifile(self.path, self.ptrn)
def noteStateMatrixToMidi(statematrix, name="example", span=span):
statematrix = np.array(statematrix)
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
span = upperBound - lowerBound
tickscale = 55
lastcmdtime = 0
prevstate = [0 for x in range(span)]
for time, state in enumerate(statematrix + [prevstate[:]]):
offNotes = []
onNotes = []
for i in range(span):
n = state[i]
p = prevstate[i]
if p == 1:
if n == 0:
offNotes.append(i)
elif n == 1:
onNotes.append(i)
for note in offNotes:
track.append(midi.NoteOffEvent(tick=(time - lastcmdtime) * tickscale, pitch=note + lowerBound))
lastcmdtime = time
for note in onNotes:
track.append(midi.NoteOnEvent(tick=(time - lastcmdtime) * tickscale, velocity=40, pitch=note + lowerBound))
lastcmdtime = time
prevstate = state
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
midi.write_midifile("{}.mid".format(name), pattern)
def transpose_tone(infile, outfile, bias, change_tempo=False):
r"""
Transpose the tone of a midi file. If `bias` is negative,
it becomes flat. If `bias` is positive, it becomes sharp.
Args:
infile (str): input midi file
outfile (str): output midi file
bias (int): the distance the tone shifts. If the bias is too large,
and makes some note out of [21, 108], the bias will be modified.
change_tempo (bool): if randomly change tempo (by setting resolution)
"""
pattern = midi.read_midifile(infile)
if pattern.format not in (0, 1):
raise ValueError(
"Pattern format is not 0 or 1. Format 2 is not supported.")
m, M = -128, 128
for track in pattern:
for evt in track:
if isinstance(evt, (midi.NoteOnEvent, midi.NoteOffEvent)):
m = max(21 - evt.data[0], m)
M = min(108 - evt.data[0], M)
bias = min(max(m, bias), M)
for track in pattern:
for evt in track:
if isinstance(evt, (midi.NoteOnEvent, midi.NoteOffEvent)):
evt.data[0] += bias
if change_tempo:
pattern.resolution = math.ceil(2**(np.log2(pattern.resolution) +
np.random.rand() * 2) - 1)
midi.write_midifile(outfile, pattern)
def notes_to_midi(midi_vals, fn):
# Instantiate a MIDI Pattern (contains a list of tracks)
pattern = midi.Pattern()
pattern.resolution = 480
# Instantiate a MIDI Track (contains a list of MIDI events)
track = midi.Track()
# Append the track to the pattern
pattern.append(track)
for val in midi_vals:
vel = 0 if val == 0 else 100
# Instantiate a MIDI note on event, append it to the track
on = midi.NoteOnEvent(tick=0, velocity=vel, pitch=val)
track.append(on)
# Instantiate a MIDI note off event, append it to the track (1/16th note = 480/16 = 30 ticks)
off = midi.NoteOffEvent(tick=120, pitch=val)
track.append(off)
# Add the end of track event, append it to the track
eot = midi.EndOfTrackEvent(tick=0)
track.append(eot)
# Print out the pattern
print pattern
# Save the pattern to disk
midi.write_midifile(fn, pattern)
def NoteListToMIDI(filename, note_list, num_aksharam, swaras_per_aksharam):
# pattern = midi.read_midifile(filename)
MIDI_note_list = []
MIDI_note_list.append(midi.TrackNameEvent(tick = 0, text = 'Rakesh', data = [70, 76, 32, 75, 101, 121, 115, 32, 49]))
for i in note_list:
if i.MIDINote == 0:
event = midi.NoteOnEvent(tick = 0, channel = 0, data = [i.MIDINote, 0])
else:
event = midi.NoteOnEvent(tick = 0, channel = 0, data = [i.MIDINote, 100])
MIDI_note_list.append(event)
if i.MIDINote == 0:
event = midi.NoteOffEvent(tick = int(24*i.NoteLength), channel = 0, data = [i.MIDINote, 0])
else:
event = midi.NoteOffEvent(tick = int(24*i.NoteLength), channel = 0, data = [i.MIDINote, 100])
MIDI_note_list.append(event)
MIDI_note_list.append(midi.EndOfTrackEvent(tick=0, data = []))
songpattern = midi.Pattern(format = 1, resolution = 96, tracks = \
[midi.Track([midi.SetTempoEvent(tick = 0, data = [12, 53, 0]),
midi.TimeSignatureEvent(tick=0, data=[num_aksharam, swaras_per_aksharam/2, 24, 8]), midi.EndOfTrackEvent(tick=0, data = [])]),
midi.Track(MIDI_note_list)])
midi.write_midifile(filename, songpattern)
def list_to_midi(chunk_str_list, generated_dir, filename):
pattern = midi.Pattern(resolution=480)
track = midi.Track()
pattern.append(track)
for chunk in chunk_str_list:
chunk_info = chunk.split("_")
event_type = chunk_info[1]
if event_type == "no":
tick = int(chunk_info[0])
pitch = int(chunk_info[2])
velocity = int(chunk_info[3])
e = midi.NoteOnEvent(tick=tick, channel=0, velocity=velocity, pitch=pitch)
track.append(e)
elif event_type == "st":
tick = int(chunk_info[0])
bpm = int(chunk_info[2])
mpqn = int(chunk_info[3])
ev = midi.SetTempoEvent(tick=tick, bpm=bpm, mpqn=mpqn)
track.append(ev)
elif event_type == "cc":
control = int(chunk_info[3])
value = int(chunk_info[4])
e = midi.ControlChangeEvent(channel=0, control=control, value=value)
track.append(e)
end_event = midi.EndOfTrackEvent(tick=1)
track.append(end_event)
midi.write_midifile(generated_dir + filename + '.mid', pattern)
def data_to_song(self, song_name, song_data):
"""
data_to_song takes a song in internal representation in the shape of
[song_length, num_song_features] to a midi pattern
all the features are retrieved to the settings in config
:param song_data:
:return: a midi pattern of song_data
"""
midi_pattern = midi.Pattern([],
resolution=int(
self.output_ticks_per_quarter_note))
cur_track = midi.Track([])
cur_track.append(
midi.events.SetTempoEvent(tick=0,
bpm=self.config.melody_params.bpm))
song_events_absolute_ticks = []
abs_tick_note_beginning = 0
for frame in song_data:
ticks = int(round(frame[TICKS_FROM_PREV_START])
) * 15 + self.config.melody_params.ticks_min
if ticks > self.config.melody_params.ticks_max:
ticks = self.config.melody_params.ticks_max
abs_tick_note_beginning += ticks
tick_len = int(round(
frame[LENGTH])) * 15 + self.config.melody_params.length_min
if tick_len > self.config.melody_params.length_max:
tick_len = self.config.melody_params.length_max
pitch = int(round(
frame[FREQ])) + self.config.melody_params.pitch_min
if pitch > self.config.melody_params.pitch_max:
pitch = self.config.melody_params.pitch_max
velocity = int(round(
frame[VELOCITY])) + self.config.melody_params.velocity_min
if velocity > self.config.melody_params.velocity_max:
velocity = self.config.melody_params.velocity_max
song_events_absolute_ticks.append(
(abs_tick_note_beginning,
midi.events.NoteOnEvent(tick=0,
velocity=velocity,
pitch=pitch)))
song_events_absolute_ticks.append(
(abs_tick_note_beginning + tick_len,
midi.events.NoteOffEvent(tick=0, velocity=0, pitch=pitch)))
song_events_absolute_ticks.sort(key=lambda e: e[0])
abs_tick_note_beginning = 0
for abs_tick, event in song_events_absolute_ticks:
rel_tick = abs_tick - abs_tick_note_beginning
event.tick = rel_tick
cur_track.append(event)
abs_tick_note_beginning = abs_tick
cur_track.append(
midi.EndOfTrackEvent(tick=int(self.output_ticks_per_quarter_note)))
midi_pattern.append(cur_track)
midi.write_midifile(song_name, midi_pattern)
def main():
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
pitchs = [-4,1,3,5,8,6,5,3,3,5,6,5,1,1,5,8,13,15,12,10,8,8,3,5,1,5,8,13,15,12,10,8,8,10,13,13,13,13,8,5,5,5,6,8,3,5,3,5,6,8,3,5,3]
pitchs = [p+60 for p in pitchs]
tempos = [2,2,2,4,4,2,1,1,2,4,2,2,4,2,2,2,4,4,2,1,1,2,2,10,2,2,2,4,4,2,1,1,1,3,2,1,1,1,2,1,4,2,1,1,1,1,10,2,1,1,1,1,6]
tempos = [2*x for x in tempos]
print(len(pitchs))
print(len(tempos))
# repeats = [4, 3, 6, 3]
print('resolution = ', pattern.resolution)
idx = 0
hmn = [0]
pitchs = [tuple(p+i for i in hmn) for p in pitchs]
print(pitchs)
for _ in range(100):
for ps, t in zip(pitchs, tempos):
for p in ps:
track_append(track, ON, 0, p)
for idx, p in enumerate(ps):
track_append(track, OFF, 55*t if idx==0 else 0, p)
track_append(track, EOT, tick=1)
midi.write_midifile("qingge.mid", pattern)
def piano_roll_to_midi(piano_roll, filename):
"""
Saves a midi file from a piano_roll object
:param piano_roll: A list of lists, where each sublist represents a time step and contains
the midi numbers
:param filename: The file name of the output file
:return: The midi track that was created
"""
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
offset = 0
for time_step, notes in enumerate(piano_roll):
for note in notes:
previous_notes = piano_roll[time_step -
1] if time_step > 0 else []
if note not in previous_notes:
track.append(
midi.NoteOnEvent(tick=offset, velocity=100,
pitch=note))
offset = 0
offset += 130
for note in notes:
next_notes = piano_roll[
time_step + 1] if time_step < len(piano_roll) - 1 else []
if note not in next_notes:
track.append(midi.NoteOffEvent(tick=offset, pitch=note))
offset = 0
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
midi.write_midifile(filename + '.mid', pattern)
return track
def handle_drum_track(track, prefix, channel):
print "Creating %s*.mid for channel %d" % (prefix, channel)
track.make_ticks_abs()
drumset = set()
drumhash = {}
for event in track:
event.channel = channel
if isinstance(event, midi.NoteOnEvent):
drumset.add(event.data[0])
for note in drumset:
drumhash[note] = midi.Pattern(resolution=mf.resolution)
_track = midi.Track()
drumhash[note].append(_track)
for event in track:
if isinstance(event, midi.NoteEvent):
drumhash[event.pitch][0].append(event.copy())
elif not isinstance(event, midi.EndOfTrackEvent):
for key in drumhash:
drumhash[key][0].append(eval(repr(event)))
for key in drumhash:
fn = "%s%d.mid" % (prefix, key)
drumhash[key].make_ticks_rel()
midi.write_midifile(fn, drumhash[key])
def test():
"""
Make music!
"""
initial = get_initial_state()
node = get_successor_node(initial)
for i in range(220):
test_nodes = []
for i in range(1000):
test_nodes.append(get_successor_node(node))
node = evaluate(node, test_nodes)
pattern = midi.Pattern()
pattern.make_ticks_abs()
track = midi.Track()
pattern.append(track)
for note in node.action_path:
on = midi.NoteOnEvent(tick=0, velocity=NOTE_VELOCITY, pitch=note)
off = midi.NoteOffEvent(tick=NOTE_DURATION[get_rand_duration()],
pitch=note)
track.append(on)
track.append(off)
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
print(pattern)
midi.write_midifile("example.mid", pattern)
def main():
db = MidiDB();
records = db.records_in_key("C")
result_pattern = midi.Pattern(resolution=480)
songs = []
for i in range(5):
uid = random.choice(records)["id"];
pattern = db.pattern(uid)
midiutil.pattern_to_resolution(pattern, 480)
track = random.choice(pattern)
result_pattern.append(track)
songs.append(pattern)
remapper = midiremap.MidiRemapper("b0rkestra_description.json", result_pattern)
remapper.remap_pattern(result_pattern)
midi.write_midifile("test.mid", result_pattern)
def write_to_midi(self, filename):
"""
Resolution is 220 ticks per quarter note
"""
pattern = midi.Pattern()
track = midi.Track([], False)
bass_track = midi.Track([], False)
offset = 0
for phrase in self.phrases:
for note in phrase.melody:
if note.pitch == "rest":
offset += 110*note.rhythm
else:
track.append(midi.NoteOnEvent(tick=offset, velocity=120, pitch=self.tonic_pitch+24+note.pitch))
track.append(midi.NoteOffEvent(tick=(110*note.rhythm), pitch=self.tonic_pitch+24+note.pitch))
offset = 0
for bass_note in phrase.bass_notes:
bass_track.append(midi.NoteOnEvent(tick=0, velocity=120, pitch=self.tonic_pitch+bass_note))
bass_track.append(midi.NoteOffEvent(tick=220 * self.beats_per_measure, pitch=self.tonic_pitch+bass_note))
track.append(midi.EndOfTrackEvent(tick=1))
bass_track.append(midi.EndOfTrackEvent(tick=1))
pattern.append(track)
pattern.append(bass_track)
midi.write_midifile(filename, pattern)
def main():
usage = "%prog [options] <corpus-filename> <out-filename>"
description = "Produces a MIDI file from one of the files of the "\
"Kostka-Payne corpus compiled by David Temperley. "\
"<corpus-filename> may be either a path to the file or the "\
"name of a file in the corpus (which is stored within the project)."
parser = OptionParser(description=description, usage=usage)
options, arguments = parser.parse_args()
if len(arguments) < 1:
print >> sys.stderr, "You must specify an input filename"
sys.exit(1)
elif len(arguments) < 2:
print >> sys.stderr, "You must specify an output midifile name"
sys.exit(1)
filename = arguments[0]
outname = arguments[1]
# Read in the input file
seq = DataSequence.from_file(filename)
# Produce a midi stream from the data sequence
mid = seq.to_midi()
# Output the midi file
write_midifile(mid, outname)
def hide_message(midi_file, message):
print ("Hide message: \"" + message + "\" in " + midi_file)
try:
# Read midi file
tracks = midi.read_midifile(midi_file)
# If the midi doesn't have tracks add one
if len(tracks) == 0:
tracks.append(midi.Track)
# Instantiate a MIDI note off event, append it to the track
off = midi.NoteOffEvent(tick=0, pitch=midi.G_3)
tracks[0].insert(0, off)
# Iterate message characters and insert them as program change event
for character in message:
change_program = midi.ProgramChangeEvent(tick=0, data=[ord(character)])
tracks[0].insert(0, change_program)
# Instantiate a MIDI note on event, append it to the track
on = midi.NoteOnEvent(tick=0, pitch=midi.G_3)
tracks[0].insert(0, on)
# Save the pattern to disk
midi.write_midifile(midi_file, tracks)
except IOError:
print ("Error reading the input file")
def store_track_as_file(self, base_path: str):
pattern = midi.Pattern()
pattern.resolution = self.resolutuion
# ticks need to be relative for export
self.track.make_ticks_rel()
pattern.append(self.track)
# create folder if it does not exist
folder_path = base_path + self.relative_file_path
if not path.exists(folder_path):
os.makedirs(folder_path)
# build filename
if self.is_drum:
export_filename = self.file_name[:-4] + "-" + str(
self.file_id) + "-drum.mid"
else:
export_filename = self.file_name[:-4] + "-" + str(
self.file_id
) + "-" + self.category.name + "-" + self.instrument.name + ".mid"
midi.write_midifile(midifile=folder_path + export_filename,
pattern=pattern)
def main():
composerName = "mozart"
createNewTransition = False
inputFiles = glob.glob('midis/midiworld/classic/' + composerName + '*.mid')
if createNewTransition:
getTransitionMatrix(inputFiles, composerName)
lengthM = loadMatrixFromFile("matrices/" + composerName + "LengthM.dat")
pitchM = loadMatrixFromFile("matrices/" + composerName + "PitchM.dat")
velocityM = loadMatrixFromFile("matrices/" + composerName +
"VelocityM.dat")
notesList = highestPlausibility(lengthM, pitchM, velocityM)
outFileName = "midis/" + composerName + "New.mid"
# Instantiate a MIDI Pattern (contains a list of tracks)
resolution = 384
pattern = midi.Pattern(resolution=resolution)
# Instantiate a MIDI Track (contains a list of MIDI events)
track = midi.Track()
# Append the track to the pattern
pattern.append(track)
# Set Instrument to piano
pEvent = midi.ProgramChangeEvent(tick=0, channel=0)
pEvent.set_value(1)
track.append(pEvent)
# Set tempo to 150 bpm
tEvent = midi.SetTempoEvent(tick=0)
tEvent.set_bpm(150)
track.append(tEvent)
for note in notesList:
tick = Note.lengthToTick(note.length, resolution)
pitch = note.pitch
velocity = note.volume
# Append the new note
track.append(
midi.NoteOnEvent(channel=0, tick=0, pitch=pitch,
velocity=velocity))
# Stop the previous note to avoid unpleasant mixing
track.append(
midi.NoteOnEvent(channel=0, tick=tick, pitch=pitch, velocity=0))
# Add the end of track event, append it to the track
eot = midi.EndOfTrackEvent(tick=0)
track.append(eot)
print pattern
# Save the pattern to disk
midi.write_midifile(outFileName, pattern)
print "\nMusic written to " + outFileName + "\n"
def main(argc, argv):
if argc != 3:
print("Usage: python csv2midi.py <csv file> <output file name>")
exit(1)
# Pattern is the midi file. It can contain multiple tracks,
# but we are using just one.
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
print(argv[1])
csvfile = open(argv[1], 'rb')
counter = 0
for row in csvfile:
print(counter)
vals = [x.strip() for x in row.split(',')]
print(vals)
vals = filter(None, vals)
vals = map(lambda x: int(x), vals)
tick = vals[0]
base = vals[1] + 60
print(len(vals))
offsets = vals[2:]
for i in range(0, len(offsets)):
offsets[i] = int(offsets[i]) + base
#print tick
#print base
#print offsets
data = []
track.append(midi.NoteOnEvent(tick=12, channel=1, data=[base] + [110]))
for x in offsets:
track.append(midi.NoteOnEvent(tick=0, channel=1, data=[x]+[110]))
track.append(midi.NoteOffEvent(tick=tick, channel=1, data=[base] + [0]))
for x in offsets:
track.append(midi.NoteOffEvent(tick=0, channel=1, data=[x]+[0]))
counter += 10
# End of track appears 1 tick after last event
track.append(midi.EndOfTrackEvent(tick=1))
print("###########################################")
print("ORIGINAL")
print("###########################################")
#pattern2 = midi.read_midifile("vexation.mid")
#print(pattern2)
#print("###########################################")
#print("RECOVERED")
#print("###########################################")
#print pattern
midi.write_midifile(argv[2], pattern)
def noteStateMatrixToMidi(statematrix, name="example", span=span):
"""
Transforms a matrix representation of notes and into a midi file.
:param statematrix: matrix representation of song
:param name: name for midi file
:param span: pitch range, default span (78)
:type statematrix: numpy array
:type name: str
:type span: int
:returns: None
:rtype: None
"""
statematrix = np.array(statematrix)
if not len(statematrix.shape) == 3:
statematrix = np.dstack((statematrix[:, :span], statematrix[:,
span:-2]))
statematrix = np.asarray(statematrix)
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
span = upperBound - lowerBound
tickscale = 55
lastcmdtime = 0
prevstate = [[0, 0] for x in range(span)]
for time, state in enumerate(statematrix + [prevstate[:]]):
offNotes = []
onNotes = []
for i in range(span):
n = state[i]
p = prevstate[i]
if p[0] == 1:
if n[0] == 0:
offNotes.append(i)
elif n[1] == 1:
offNotes.append(i)
onNotes.append(i)
elif n[0] == 1:
onNotes.append(i)
for note in offNotes:
track.append(
midi.NoteOffEvent(tick=(time - lastcmdtime) * tickscale,
pitch=note + lowerBound))
lastcmdtime = time
for note in onNotes:
track.append(
midi.NoteOnEvent(tick=(time - lastcmdtime) * tickscale,
velocity=120,
pitch=note + lowerBound))
lastcmdtime = time
prevstate = state
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
midi.write_midifile("{}.mid".format(name), pattern)
def on_frame(self, controller):
# Get the most recent frame and report some basic information
frame = controller.frame()
previous_frame = controller.frame(1)
last_frame = controller.frame(10)
back_frame = controller.frame(20)
#print "Frame id: %d, timestamp: %d, hands: %d, fingers: %d, tools: %d, gestures: %d" % (
# frame.id, frame.timestamp, len(frame.hands), len(frame.fingers), len(frame.tools), len(frame.gestures()))
# direction of index finger
direction_1 = frame.hands.rightmost.fingers[1].bone(2).direction
direction_2 = last_frame.hands.rightmost.fingers[1].bone(2).direction
direction_3 = back_frame.hands.rightmost.fingers[1].bone(2).direction
middle_1 = frame.hands.rightmost.fingers[2].bone(2).direction
middle_2 = last_frame.hands.rightmost.fingers[2].bone(2).direction
middle_3 = back_frame.hands.rightmost.fingers[2].bone(2).direction
# angle of these two finger vector
if (direction_1).angle_to(direction_2) > np.pi / 9 and (
direction_1).angle_to(direction_3) < np.pi / 15:
print "index finger press action, direction vector: ", direction_1, direction_2, direction_3
# tick of midi is milli second 1e-3second, timestamp of frame is micro second 1e-6second
#start_ = int((frame.timestamp - self.first_timestamp)/ 1000.0)
self.track.append(
midi.NoteOnEvent(tick=50, velocity=50, pitch=midi.G_3))
self.track.append(
midi.NoteOffEvent(tick=150, velocity=50, pitch=midi.G_3))
if (middle_1).angle_to(middle_2) > np.pi / 10 and (
middle_1).angle_to(middle_3) < np.pi / 15:
print "index finger press action, direction vector: ", middle_1, middle_2, middle_3
# tick of midi is milli second 1e-3second, timestamp of frame is micro second 1e-6second
#start_ = int((frame.timestamp - self.first_timestamp)/ 1000.0)
self.track.append(
midi.NoteOnEvent(tick=50, velocity=50, pitch=midi.A_3))
self.track.append(
midi.NoteOffEvent(tick=150, velocity=50, pitch=midi.A_3))
# get the normal vector of the palm
normal = frame.hands.rightmost.palm_normal
previous_normal = previous_frame.hands.rightmost.palm_normal
print normal[0], normal[1], normal[2]
# stop is the palm normal is inversed
if previous_normal[2] * normal[2] < 0:
# end the track, add it to the pattern
print "end track event, track adds to pattern"
self.track.append(midi.EndOfTrackEvent(tick=1))
self.pattern.append(self.track)
# write pattern to file midi
print "write pattern to file: "
midi.write_midifile("example.mid", self.pattern)
# stop the listener
print "stop"
controller.remove_listener(self)
def three_track_midi(source, dest, tr1, tr2, tr3):
if isinstance(mf, str):
mf = midi.read_midifile(mf)
pat = midi.Pattern()
pat.append(mf[tr1])
pat.append(mf[tr2])
pat.append(mf[tr3])
midi.write_midifile(dest, pat)
def write(self):
eot = midi.EndOfTrackEvent()
eot.tick = self.delta_tick()
self.track.append(eot)
meta_track = self.make_meta_track()
pattern = midi.Pattern(tracks = [meta_track, self.track],
resolution = math.ceil(self.subres * self.subdivision / 4.0))
midi.write_midifile(self.filename, pattern)
def render(self):
# Add the end of track event, append it to the track
eot = midi.EndOfTrackEvent(tick=1)
self.track.append(eot)
# Print out the pattern
print self.pattern
# Save the pattern to disk
midi.write_midifile("example.mid", self.pattern)
def change_midi_speed(input_file, output_file, tmpo):
pattern = midi.read_midifile(input_file)
for track in pattern:
for event in track:
if type(event) is midi.SetTempoEvent:
event.set_bpm(float(tmpo))
break
midi.write_midifile(output_file, pattern)
def main():
composerName = "mozart"
createNewTransition = False
inputFiles = glob.glob('midis/midiworld/classic/' + composerName + '*.mid')
if createNewTransition:
getTransitionMatrix(inputFiles, composerName)
lengthM = loadMatrixFromFile("matrices/" + composerName + "LengthM.dat")
pitchM = loadMatrixFromFile("matrices/" + composerName + "PitchM.dat")
velocityM = loadMatrixFromFile("matrices/" + composerName + "VelocityM.dat")
notesList = highestPlausibility(lengthM, pitchM, velocityM)
outFileName = "midis/" + composerName + "New.mid"
# Instantiate a MIDI Pattern (contains a list of tracks)
resolution=384
pattern = midi.Pattern(resolution=resolution)
# Instantiate a MIDI Track (contains a list of MIDI events)
track = midi.Track()
# Append the track to the pattern
pattern.append(track)
# Set Instrument to piano
pEvent = midi.ProgramChangeEvent(tick=0, channel=0)
pEvent.set_value(1)
track.append(pEvent)
# Set tempo to 150 bpm
tEvent = midi.SetTempoEvent(tick=0)
tEvent.set_bpm(150)
track.append(tEvent)
for note in notesList:
tick = Note.lengthToTick(note.length, resolution)
pitch = note.pitch
velocity = note.volume
# Append the new note
track.append(midi.NoteOnEvent(channel=0, tick=0, pitch = pitch, velocity=velocity))
# Stop the previous note to avoid unpleasant mixing
track.append(midi.NoteOnEvent(channel=0, tick=tick, pitch=pitch,velocity=0))
# Add the end of track event, append it to the track
eot = midi.EndOfTrackEvent(tick=0)
track.append(eot)
print pattern
# Save the pattern to disk
midi.write_midifile(outFileName, pattern)
print "\nMusic written to " + outFileName + "\n"
def main():
usage = "%prog [options] <input-midi> <output-filename>"
description = "Cleans up a midi file by getting rid of a load of "\
"stuff that makes the music sound good, but isn't needed "\
"by our algorithms. See options for details."
parser = OptionParser(usage=usage, description=description)
parser.add_option('-d', '--remove-drums', dest="remove_drums", action="store_true", help="filter out drum tracks", default=False)
parser.add_option('-p', '--pc', '--remove-program-change', dest="remove_pc", action="store_true", help="filter out all program change (instrument) events", default=False)
parser.add_option('-x', '--remove-text', '--txt', dest="remove_text", action="store_true", help="filter out all text events of any type", default=False)
parser.add_option('-o', '--one-track', dest="one_track", action="store_true", help="reduce everything down to one track", default=False)
parser.add_option('-t', '--remove-tempo', dest="remove_tempo", action="store_true", help="remove all tempo events", default=False)
parser.add_option('-c', '--remove-control', dest="remove_control", action="store_true", help="remove all control change events", default=False)
parser.add_option('--ch', '--one-channel', dest="one_channel", action="store_true", help="use only one channel: every event occurs on channel 0", default=False)
parser.add_option('--mc', '--remove-misc-control', dest="remove_misc_control", action="store_true", help="filter out a whole load of device control events: aftertouch, channel aftertouch, pitch wheel, sysex, port", default=False)
parser.add_option('--rno', '--real-note-offs', dest="real_note_offs", action="store_true", help="replace 0-velocity note-ons with actual note-offs. Some midi files use one, some the other", default=False)
parser.add_option('--remove-duplicates', dest="remove_duplicates", action="store_true", help="tidy up at the end to remove any duplicate notes", default=False)
parser.add_option('-i', '--invert', dest="invert", action="store_true", help="inverts all options. I.e. applies all filters except those selected by the above options", default=False)
parser.add_option('-r', '--remove-channels', dest="remove_channels", action="append", type="int", help="filter out all events of the numbered channel. Use multiple options to filter multiple channels at once")
parser.add_option('--resolution', '--res', dest="resolution", action="store", type="int", help="change the resolution of the midi data from that read in from the file to that given")
options, arguments = parse_args_with_config(parser)
if len(arguments) < 2:
print >>sys.stderr, "You must specify an input and output filename"
sys.exit(1)
in_filename = os.path.abspath(arguments[0])
out_filename = os.path.abspath(arguments[1])
# Read in the midi file
mid = read_midifile(in_filename, force_resolution=options.resolution)
# Build a dictionary of kwargs to select what operations to apply
filters = {
'remove_drums' : options.remove_drums ^ options.invert,
'remove_pc' : options.remove_pc ^ options.invert,
'remove_all_text' : options.remove_text ^ options.invert,
'one_track' : options.one_track ^ options.invert,
'remove_tempo' : options.remove_tempo ^ options.invert,
'remove_control' : options.remove_control ^ options.invert,
'one_channel' : options.one_channel ^ options.invert,
'remove_misc_control' : options.remove_misc_control ^ options.invert,
'real_note_offs' : options.real_note_offs ^ options.invert,
}
print "Filters to be applied:"
if options.remove_channels is not None:
print " removing channels: %s" % ", ".join(str(ch) for ch in options.remove_channels)
if options.resolution is not None:
print " changing resolution to %d" % options.resolution
print "\n".join(" %s" % name for (name,val) in filters.items() if val)
filters['remove_duplicates'] = options.remove_duplicates
print "Filtering..."
# Apply channel filters first
if options.remove_channels is not None:
remove_channels(mid, options.remove_channels)
filtered = simplify(mid, **filters)
print "Midi output to",out_filename
write_midifile(filtered, out_filename)
def sequence_to_midi(state_matrix, filepath, meta_info=None):
"""
Converts a state_matrix to the corresponding 'pattern'
and writes the pattern as a midi file.
:param state_matrix: The state matrix.
:type state_matrix: 2-D list
:param filepath: The path of the output midi file.
:type filepath: str
:param meta_info: Resolution and tempo-event of the pattern.
:type meta_info: (int, SetTempoEvent or None) or None
:returns: The pattern sequence corresponding to the state matrix.
:return_type: list
"""
resolution, tempo_event = meta_info if meta_info else None
pattern = midi.Pattern(resolution=resolution)
track = midi.Track()
pattern.append(track)
if tempo_event:
track.append(tempo_event)
# Append the very first tick (which will only have NoteOn events)
notes_on, _ = state_diff([0] * 128, state_matrix[0])
for note in notes_on:
track.append(midi.NoteOnEvent(tick=0, channel=0, data=note))
# Append the rest of the ticks
current_state_index = 0
while current_state_index < len(state_matrix):
next_state_index = get_next_different_state(
state_matrix, current_state_index)
ticks_elapsed = next_state_index - current_state_index
current_state = state_matrix[current_state_index]
next_state = state_matrix[next_state_index] if next_state_index < len(
state_matrix) else [0] * 128
notes_on, notes_off = state_diff(current_state, next_state)
for note in notes_on:
track.append(midi.NoteOnEvent(
tick=ticks_elapsed, channel=0, data=note))
# The rest of the events are happening simultaneously,
# so set time_elapsed (tick) = 0 for them
ticks_elapsed = 0
for note in notes_off:
track.append(midi.NoteOffEvent(
tick=ticks_elapsed, channel=0, data=note))
ticks_elapsed = 0
current_state_index = next_state_index
track.append(midi.EndOfTrackEvent(tick=1))
midi.write_midifile(filepath, pattern)
return pattern
def writeDebugTrack(track, filename, index):
if not os.path.exists(tracks_dir):
os.makedirs(tracks_dir)
pattern = midi.Pattern()
pattern.append(track)
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
#print "Writing debug track for "+filename+". Track #"+str(index)
#print pattern
midi.write_midifile(tracks_dir + "/" + filename + "_track"+str(index), pattern)
def write(self, outfile):
"""
Renders MIDI data and writes it out the the given file.
@type outfile: string or open file
@param outfile: filename to write to or an open file(-like) object
"""
mid = self.render()
write_midifile(mid, outfile)
def midiMap(attr,f_name):
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
file_name = f_name
print 'length = '+str(len(attr))
for k in range(len(attr['key'])):
# Instantiate a MIDI note on event, append it to the track
#print "midi."+str(attr['key'][k])+"_"+str(attr['octave'][k])
key = attr['key'][k]
#print key
octave = attr['octave'][k]
#print key_names[key]
key_number = key_names[key] + 12*(octave-1)
#print key_number
#pitch = eval("midi."+str(key)+"_"+str(octave))
pitch = key_number
#print pitch
ed = attr['effective_duration'][k] * 500
if k==(len(attr['key'])-1):
timing_f = 50*ed
timing_i = 0
else :
timing_f = attr['times'][k+1] * 1000
timing_i = attr['times'][k] * 1000
#print timing_f - timing_i
#print "ed = " +str(ed)
on = midi.NoteOnEvent(tick=0, velocity=70, pitch=pitch)
track.append(on)
off = midi.NoteOffEvent(tick=int(timing_f - timing_i - ed) , pitch=pitch)
track.append(off)
on = midi.NoteOnEvent(tick=1, velocity=0, pitch=pitch)
track.append(on)
off = midi.NoteOffEvent(tick=1, pitch=pitch)
track.append(off)
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
#print pattern
file_name = os.path.basename(file_name).split('.')[0]
print(file_name)
path = "recorded_to_midi/" + file_name + ".mid"
midi.write_midifile(path, pattern)
def load_stream(self, stream):
"""
Loads the whole of an L{EventStream<midi.EventStream>}.
Call L{play} to start playback.
"""
temp_file = TemporaryFile(suffix=".mid")
write_midifile(stream, temp_file)
temp_file.seek(0)
mixer.music.load(temp_file)
self._music_loaded = True
def musicToMidi(filename, music):
"""
musicToMidi takes a filename (which must end in ".mid") and a music structure and writes
a MIDI file.
:param filename:
:param music:
:return:
"""
checkMidiCompatible(music) # are the volumes and pitches within 0-127?
e = musicToMEvents(music) # convert to MEvents
p = mEventsToPattern(e) # convert to a pythonmidi Pattern
midi.write_midifile(filename, p) # write the MIDI file
def write_file(name, results):
"""
Takes a list of all notes generated per track and writes it to file
"""
results = zip(*list(results))
for i, result in enumerate(results):
fpath = os.path.join(SAMPLES_DIR, name + '_' + str(i) + '.mid')
print('Writing file', fpath)
os.makedirs(os.path.dirname(fpath), exist_ok=True)
mf = midi_encode(unclamp_midi(result))
midi.write_midifile(fpath, mf)
def main():
usage = "%prog [options] <seq-file>:<index> <midi-file> <midi-out>"
description = "Aligns a chord sequence with a MIDI file and inserts "\
"marker events into the MIDI data to mark where chord changes "\
"are. Alignment parameters will be loaded from a file (not "\
"implemented yet), but can be overridden using the script's "\
"options."
parser = OptionParser(usage=usage, description=description)
parser.add_option("--mbpb", "--midi-beats-per-beat", dest="beats_per_beat", type="int", help="number of midi beats to align with a single sequence beat (see SequenceMidiAlignment.midi_beats_per_beat)")
parser.add_option("--ss", "--sequence-start", dest="sequence_start", type="int", help="number of midi ticks after the first note-on event when the chord sequence begins (see SequenceMidiAlignment.sequence_start)")
parser.add_option("--repeats", dest="repeats", help="repeat spans, in the form 'start_chord,end_chord,count', separated by semicolons (see SequenceMidiAlignment.repeat_spans)")
parser.add_option("--lyrics", dest="lyrics", action="store_true", help="use lyrics events instead of marker events to mark the chords")
options, arguments = parser.parse_args()
if len(arguments) < 3:
print "You must specify a sequence file, midi file and output midi filename"
sys.exit(1)
# Get the chord sequence
filename,__,index = arguments[0].partition(":")
index = int(index)
seq = SequenceIndex.from_file(filename).sequence_by_index(index)
# Load the input midi data
mid = read_midifile(arguments[1])
outfile = arguments[2]
# For now, just create a new default alignment
# TODO: load the alignment parameters from a file or from the
# sequence data itself
alignment = SequenceMidiAlignment()
# Override alignment parameters if options are given
if options.beats_per_beat is not None:
alignment.midi_beats_per_beat = options.beats_per_beat
if options.sequence_start is not None:
alignment.sequence_start = options.sequence_start
if options.repeats is not None:
repeats = []
try:
for string_triple in options.repeats.split(":"):
start,end,count = string_triple.split(",")
start,end,count = int(start), int(end), int(count)
repeats.append((start,end,count))
except:
print "Error parsing repeat spans:"
raise
alignment.repeat_spans = repeats
alignment.align(seq, mid, lyrics=options.lyrics)
write_midifile(mid, outfile)
def save_tracks(original_filename, new_filename, track_list):
"""
Save the tracks to disk as a .mid file.
"""
pattern = midi.read_midifile(filename)
for track in pattern:
if track not in track_list:
for event in track:
try:
event.velocity = 1
except AttributeError:
pass
midi.write_midifile(new_filename, pattern)
def generate_output(self):
TEMPO = int(Start.kwargs.get('tempo', 60))
OUTPUT = Start.kwargs.get('out', 'out.mid')
t = midi.new_stream(resolution=120, tempo=TEMPO)
for i, inp in enumerate(self.input.values()):
for j, item in enumerate(inp):
if isinstance(item, Chord):
pitches = [ p + 60 for p in item.pitch_classes ] # XXX
else:
raise TypeError('Only chords supported for MIDI out right now')
for pitch in pitches:
noteon(t, i, pitch, j * 120, 100, 100)
midi.write_midifile(t, OUTPUT)
def main():
filename, basename, _ = filebaseext( argv[ 1 ] )
tick_per_quantum = int( argv[ 2 ] )
original = midi.read_midifile( filename )
qstats, qtrack = quantize( original[ 0 ], tick_per_quantum )
midi.write_midifile( '{}.q{}.mid'.format( basename, tick_per_quantum ), midi.Pattern( format = 0, resolution = original.resolution, tracks = [ qtrack ] ) )
print 'qstats:'
for delta, count in qstats:
print '\ttick {}: # {}'.format( delta, count )
def output_midi_simple_array(notesmatrix, midipath, tickscale = 55):
notesmatrix = numpy.asarray(notesmatrix)
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
lowerNote = 52
e = midi.ProgramChangeEvent()
e.value = 80
track.append(e)
fillTrack(track, notesmatrix, lowerNote, tickscale)
midi.write_midifile("{}".format(midipath), pattern)
def test_mary(self):
midi.write_midifile("mary.mid", mary_test.MARY_MIDI)
pattern1 = midi.read_midifile("mary.mid")
midi.write_midifile("mary.mid", pattern1)
pattern2 = midi.read_midifile("mary.mid")
self.assertEqual(len(pattern1), len(pattern2))
for track_idx in range(len(pattern1)):
self.assertEqual(len(pattern1[track_idx]), len(pattern2[track_idx]))
for event_idx in range(len(pattern1[track_idx])):
event1 = pattern1[track_idx][event_idx]
event2 = pattern1[track_idx][event_idx]
self.assertEqual(event1.tick, event2.tick)
self.assertEqual(event1.data, event2.data)
def createExampleMidi(notes):
print "printing MIDI"
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
on = midi.NoteOnEvent(tick=0, velocity=100, pitch=midi.G_3)
track.append(on)
off = midi.NoteOffEvent(tick=100000, pitch=midi.G_3)
track.append(off)
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
print pattern
midi.write_midifile("example.mid", pattern)
def main(argv):
if len(argv) < 4:
print "usage: pickled copy_deets_from out_file"
return
pickled, copy_deets_from, out_file = argv[1:4]
with open(pickled) as f:
evs = pickle.load(f)
deets_mid = midi.read_midifile(copy_deets_from)
track, last_t = gen_track(deets_mid, evs)
gen_mid = midi.Pattern()
gen_mid.append(gen_tempo_track(deets_mid, last_t))
gen_mid.append(track)
midi.write_midifile(out_file, gen_mid)
def decompose_midi(fname, out_dir=None):
"""takes fname and decomposes its tracks into multiple midi files in out_dir
grouped by families found here https://www.midi.org/specifications/item/gm-level-1-sound-set"""
# load pattern as midi
pattern = midi.read_midifile(fname)
# list of names corresponding to following pc ranges
family_names = ["piano", "chrom_percus", "organ", "guitar", "bass", "strings", "ensemble", "brass", "reed", "pipe", "synth_lead", "synth_pad", "synth_effects", "ethnic", "percussive", "sound_effects", "drums"]
# constant ranges found in spec for instrument family grouping
family_ranges = [range(0,8), range(8,16), range(16,24), range(24,32), range(32,40), range(40,48), range(48, 56), range(56,64), range(65,72), range(72,80), range(80, 88), range(88, 96), range(96,104), range(104,112), range(112, 120), range(120,128)]
# create a list of lists to store tracks corresponding to each family
grouped_tracks = [[] for x in family_ranges]
for curr_family in range(len(family_ranges)):
for track in pattern:
track_done = False
for event in track:
# Channel 10 (0 indexed is 9) is only drums
if "ProgramChangeEvent" in repr(event) and int(event.channel) != 9:
if int(event.data[0]) in family_ranges[curr_family]:
grouped_tracks[curr_family].append(track)
track_done = True
# print "Adding track titled {} to family {}".format(track[0].text, family_names[curr_family])
if track_done:
continue
# handle drums specially
drums = []
for track in pattern:
track_done = False
for event in track:
# Channel 10 (0 indexed is 9) is drums
if "ProgramChangeEvent" in repr(event):
if int(event.channel) == 9 :
drums.append(track)
track_done = True
print "Adding track titled {} to family {}".format(track[0].text, family_names[-1])
grouped_tracks.append(drums)
fname_pre = fname.split(".")[0]
for curr_family in range(len(family_names)):
if grouped_tracks[curr_family] != []:
out = midi.Pattern(format=pattern.format, resolution=pattern.resolution, tracks=grouped_tracks[curr_family])
if out_dir is None:
midi.write_midifile("{}_{}.mid".format(fname_pre, family_names[curr_family]), out)
else:
midi.write_midifile("{}_{}.mid".format(fname_pre, family_names[curr_family]), out)
def main():
#pattern1 = midi.read_midifile("midi/5RAP_04.MID")
bars = []
pattern = midi.read_midifile("midi/5RAP_04.MID")
#pattern = midi.read_midifile("midi/decoy.mid")
#pattern = midi.read_midifile("midi/drum_patterns.mid")
#print_events(pattern, [])
pattern = sanitize(pattern)
midi.write_midifile("test.mid", pattern)
pattern = midi.read_midifile("test.mid")
print pattern
return
def decompose_by_channel(fname, out_dir=None):
# load pattern as midi
pattern = midi.read_midifile(fname)
# list of names corresponding to following pc ranges
family_names = ["piano", "chrom_percus", "organ", "guitar", "bass", "strings", "ensemble", "brass", "reed", "pipe", "synth_lead", "synth_pad", "synth_effects", "ethnic", "percussive", "sound_effects", "drums"]
# constant ranges found in spec for instrument family grouping
family_ranges = [range(0,8), range(8,16), range(16,24), range(24,32), range(32,40), range(40,48), range(48, 56), range(56,64), range(65,72), range(72,80), range(80, 88), range(88, 96), range(96,104), range(104,112), range(112, 120), range(120,128)]
# create a list of lists to store tracks corresponding to each family
grouped_tracks = [[] for x in family_ranges]
channel_tracks = [midi.Track() for x in range(16)]
track_has_content = [False for x in range(16)]
# maps channels to instrument codes
# channel_map = {}
# make a track of all events that are not note on/note off events
non_note_events = midi.Track()
for track in pattern:
for event in track:
if "NoteOnEvent" not in repr(event) and "NoteOffEvent" not in repr(event):
non_note_events.append(event)
for t in channel_tracks:
t.append(event)
else:
for i in range(len(channel_tracks)):
if i == int(event.channel):
channel_tracks[i].append(event)
else:
channel_tracks[i].append(midi.NoteOnEvent(tick=event.tick, velocity=0, pitch=midi.G_3))
if "ProgramChangeEvent" in repr(event) and int(event.channel) != 9:
for curr_family in range(len(family_ranges)):
if int(event.data[0]) in family_ranges[curr_family]:
grouped_tracks[curr_family].append(channel_tracks[int(event.channel)])
break
# channel_map[int(event.channel)] = int(event.data[0])
grouped_tracks.append([channel_tracks[9]])
fname_pre = fname.split(".")[0]
for curr_family in range(len(grouped_tracks)):
if grouped_tracks[curr_family] != []:
out = midi.Pattern(format=pattern.format, resolution=pattern.resolution, tracks=(grouped_tracks[curr_family]))
if out_dir is None:
midi.write_midifile("{}_{}.mid".format(fname_pre, family_names[curr_family]), out)
else:
midi.write_midifile("{}_{}.mid".format(fname_pre, family_names[curr_family]), out)
