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 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 get_pattern(self, time_scaling=Decimal(1.0), score_notes=True):
events = []
for note in self.score_notes if score_notes else self.played_notes:
events.append(note.on_event)
events.append(note.off_event)
events = sorted(events)
time_scalind = 10000
current_time = None
track = midi.Track()
#track.append(midi.SetTempoEvent(tick=0, data=[7, 161, 32]))
for time, is_off, note_number, vel in events:
if current_time is None:
current_time = time
tick = int((time - current_time) * time_scaling)
if is_off:
track.append(
midi.NoteOffEvent(tick=tick,
pitch=note_number,
velocity=64))
else:
track.append(
midi.NoteOnEvent(tick=tick,
pitch=note_number,
velocity=vel))
current_time = time
track.append(midi.EndOfTrackEvent(tick=1))
pattern = midi.Pattern()
pattern.resolution = int(self.info['midiClockUnits'])
pattern.append(track)
return 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 render(self):
self.midi_data = midi.Pattern(resolution=self.song.ticks_per_beat *
self.song.subticks_per_tick)
for name, track in self.song.tracks.items():
midi_track = self.add_midi_track(name, name, track)
midi_track.render()
def to_pattern(self):
track = midi.Track()
pattern = midi.Pattern([track], resolution=config.resolution)
time_signatures = time.signatures()
rest_length = 0
for i in range(config.song_length):
if time_signatures.get(i, None) is not None:
sig = time_signatures[i]
track.append(midi.TimeSignatureEvent(data=[sig.numerator, sig.denominator, 36, 8]))
if self._entities.get(i, None) is not None:
entity = self._entities[i]
if entity.is_note():
midi_val = entity.pitch().midi()
track.append(midi.NoteOnEvent(tick=rest_length, data=[midi_val, constants.DEFAULT_VELOCITY]))
track.append(midi.NoteOffEvent(tick=entity.length(), data=[midi_val, constants.DEFAULT_VELOCITY]))
rest_length = 0
if entity.is_rest():
rest_length = entity.length()
track.append(midi.EndOfTrackEvent(tick=0))
return pattern
def events_to_midi(events, resolution=None):
"""
Given a set of MIDI event tuples, creates a MIDI pattern with the events in a single track.
:param resolution: The resolution for the created MIDI pattern. If None, uses pyMIDI's default value.
:param events: A series of NoteOn or NoteOff events
:return: A MIDI pattern
"""
if resolution is not None:
pattern = midi.Pattern(resolution=resolution)
else:
pattern = midi.Pattern()
track = midi.Track(events=[tuple_to_midi_event(e) for e in events])
eot = midi.EndOfTrackEvent(tick=1)
pattern.append(track)
track.append(eot)
return pattern
def generate_random_midi():
pattern = midi.Pattern(resolution=220)
track = midi.Track()
pattern.append(track)
ticks = 0
tick_buffer = 0
pitches = [-1] * NEURAL_NET_DELAY #use -1 to indicate a rest
set_tempo = midi.SetTempoEvent()
set_tempo.set_bpm(TEMPO)
track.append(set_tempo)
while ticks < NUM_TICKS:
duration = random.randint(*DURATION_RANGE)
volume = random.randint(*VOLUME_RANGE)
pitch = random.randint(*PITCH_RANGE)
if duration + ticks > NUM_TICKS:
duration = NUM_TICKS - ticks
ticks += duration
tick_buffer += duration
while tick_buffer > 0:
tick_buffer -= TICKS_PER_WINDOW
pitches.append(pitch - PITCH_RANGE[0])
on = midi.NoteOnEvent(tick=0, velocity=volume, pitch=pitch)
off = midi.NoteOffEvent(tick=duration, pitch=pitch)
track.extend([on, off])
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
return (pattern, pitches)
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 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 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 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 gen_multitracks(pattern):
"""
将一个midi.Pattern类分成各个音轨
"""
sub_patterns = []
for track in pattern:
_sub_pattern = midi.Pattern(format=pattern.format,
resolution=pattern.resolution)
_sub_pattern.append(pattern[0]) # basic info, usage not sure
for idx, event in enumerate(track):
#分离track
if isinstance(event, midi.ProgramChangeEvent):
try:
channel = event.channel
_sub_pattern.append(track)
#判断是旋律音色还是打击乐
program = event.data if channel != 9 else "Percusiion"
sub_pattern = {
'pattern': _sub_pattern,
'channel': channel,
'program': program
}
#分离track
sub_patterns.append(sub_pattern)
break
except AttributeError:
pass
return sub_patterns
def demo():
# 这个demo是把我们分出的单音色的Pattern标准化
# 这样的Pattern有两个Track
# Track0 仅有一些基本信息
# Track1 包含了音乐本身
midifile = "../track/Stan_1_Violin.mid"
pattern = read_midifile(midifile)
resolution = get_resolution(pattern)
bpm = get_tempo(pattern)
time_signature = get_time_signature(pattern)
note = get_note(pattern[1])
program = get_channel_program(pattern[1]) # [channel, program]
# 输出Pattern的初始化
pat = midi.Pattern(tracks=[[], []])
pat = set_resolution(pat, resolution)
pat = set_tempo(pat, bpm)
pat = set_time_signature(pat, time_signature)
pat[0].append(midi.EndOfTrackEvent(tick=0, data=[]))
pat[1] = set_program(pat[1], channel=program[0], value=program[1])
pat[1] = set_note(pat[1], note)
# print(pattern[0])
save_midfile(pat, "../test_std_Stan.mid")
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 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 filter_ptrn_of_percussion(x,
typs=(midi.NoteOnEvent, midi.NoteOffEvent),
channel=9,
res=480):
"""
Filter out note events that use channel 9 which corresponds to percussion
"""
if isinstance(x, utils.MidiObj):
x = x.ptrn
x.make_ticks_abs()
if isinstance(x, midi.Pattern):
new_ptrn = copy_ptrn(x)
else:
new_ptrn = midi.Pattern(tick_relative=False, resolution=res)
for old_trck in x:
new_trck = midi.Track(tick_relative=False)
new_ptrn.append(new_trck)
for old_evnt in old_trck:
keep = True
if isinstance(old_evnt, typs) and old_evnt.channel == channel:
keep = False
if keep:
new_evnt = copy.deepcopy(old_evnt)
new_trck.append(new_evnt)
x.make_ticks_rel()
new_ptrn.make_ticks_rel()
return new_ptrn
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 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 generate_random_melody(end_tick, max_notes, min_init_pitch, max_init_pitch,
pitch_range, force_stop):
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
curr_tick = 0
curr_note = 0
curr_pitch = 0
last_pitch = -1
while curr_tick < end_tick and curr_note < max_notes:
if last_pitch < 0:
curr_pitch = random.randint(min_init_pitch, max_init_pitch)
else:
curr_pitch = last_pitch + random.randint(
(pitch_range / 2) * -1, pitch_range / 2)
on = midi.NoteOnEvent(tick=curr_tick, velocity=100, pitch=curr_pitch)
track.append(on)
last_for = end_tick / max_notes + random.randint(
max_notes * -1, max_notes)
curr_tick += last_for
if curr_tick > end_tick and force_stop:
curr_tick = end_tick
off = midi.NoteOffEvent(tick=curr_tick, pitch=curr_pitch)
track.append(off)
last_pitch = curr_pitch
curr_note += 1
eot = midi.EndOfTrackEvent(tick=curr_tick)
track.append(eot)
return 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():
pattern = midi.read_midifile("1.mid")
output = midi.Pattern(resolution=480)
output.append(pattern[4])
midi.write_midifile('temp.mid', output)
print(output)
return
preprocessed = midi.Pattern(resolution=pattern.resolution)
for idx, it in enumerate(pattern):
if idx == 0:
preprocessed.append(it)
print(preprocessed)
midi.write_midifile('ebubu.mid', preprocessed)
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 __init__(self, interval=120, velocity=100):
self.interval = interval
self.velocity = velocity
self.chapterlength = 16
self.pattern = midi.Pattern()
self.track = midi.Track()
self.pattern.append(self.track)
def mEventsToPattern(mevs):
"""
Converting MEvents to a MIDI file. The following function takes a music structure
(Music, Seq, Par, etc.) and converts it to a pythonmidi Pattern. File-writing is
not performed at this step.
:param mevs:
:return:
"""
pattern = midi.Pattern() # Instantiate a MIDI Pattern (contains a list of tracks)
pattern.resolution = RESOLUTION # Set the tick per beat resolution
pList = eventPatchList(mevs) # get list of active patches
pmap = linearPatchMap(pList) # linear patch/channel assignment
usedChannels = map(lambda p: p[1], pmap) # which channels are we using? (Important for drum track)
mevsByPatch = splitByPatch(mevs, pList) # split event list by patch
currChan = 0; # channel counter
for i in range(0, len(pmap)):
track = midi.Track()
if currChan in usedChannels: # are we using this channel?
# if yes, then we add events to it
mevsP = mevsByPatch[i] # get the relevant collection of events
if pmap[i][0][0] >= 0: # are we assigning an instrument?
track.append(midi.ProgramChangeEvent(value=pmap[i][0][0])) # set the instrument
mevsOnOff = mEventsToOnOff(mevsP) # convert to on/off messages
onOffToRelDur(mevsOnOff) # convert to relative timestamps
for e in mevsOnOff: # for each on/off event...
m = toMidiEvent(e) # turn it into a pythonmidi event
track.append(m) # add that event to the track
currChan += 1 # increment channel counter
track.append(midi.EndOfTrackEvent(tick=1)) # close the track (not optional!)
pattern.append(track) # add the track to the pattern
return pattern
def write_midi_from_log(input_filename, output_filename):
pattern = midi.Pattern()
started = False
for (tick, velocity, pitch) in MidiEventParser(input_filename):
if not started:
started = True
first = tick
new_tick = tick-first
if not velocity:
event = midi.NoteOffEvent(tick=new_tick, pitch=eval('midi.{}'.format(pitch)))
else:
pattern = midi.Pattern()
event = midi.NoteOnEvent(tick=new_tick, velocity=velocity, pitch=eval('midi.{}'.format(pitch)))
track.append(event)
pattern.append(track)
midi.write_midifile(output_filename, 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 midi_decode(grid):
pattern = midi.Pattern()
track = midi.Track()
tempoEvent = midi.SetTempoEvent()
tempoEvent.set_bpm(30)
track.append(tempoEvent)
pattern.append(track)
previous_vector = grid[0] # first vector
for note_index in range(len(previous_vector)):
if previous_vector[note_index] != 0: #velocity is not 0
track.append(midi.NoteOnEvent(tick=0, velocity=previous_vector[note_index], pitch=note_index))
tickoffset = 0
for vector in grid:
if previous_vector == vector: #if vectors are same, no new events
tickoffset += 1
else:
for note_index in range(len(previous_vector)):
if previous_vector[note_index] == vector[note_index]: #if same velocity, hold the note rather than rearticulate (no new event)
continue
if previous_vector[note_index] != 0 and vector[note_index] == 0:
if note_index > 127:
print "BROKEN ASSUMPTION"
track.append(midi.NoteOffEvent(tick=tickoffset, pitch=note_index))
else:
track.append(midi.NoteOnEvent(tick=0, velocity=vector[note_index], pitch=note_index))
tickoffset = 0
tickoffset += 1
previous_vector = vector
track.append(midi.EndOfTrackEvent(tick=1))
return 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 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"
