def arpeggiator(chord, start, track):
for i in range(2):
on = midi.NoteOnEvent(tick=0,
velocity=80,
pitch=midi.C_4 + chord.tones[0])
off = midi.NoteOffEvent(tick=110, pitch=midi.C_4 + chord.tones[0])
track.append(on)
track.append(off)
on = midi.NoteOnEvent(tick=0,
velocity=80,
pitch=midi.C_4 + chord.tones[1])
off = midi.NoteOffEvent(tick=110, pitch=midi.C_4 + chord.tones[1])
track.append(on)
track.append(off)
on = midi.NoteOnEvent(tick=0,
velocity=80,
pitch=midi.C_4 + chord.tones[2])
off = midi.NoteOffEvent(tick=110, pitch=midi.C_4 + chord.tones[2])
track.append(on)
track.append(off)
on = midi.NoteOnEvent(tick=0,
velocity=80,
pitch=midi.C_4 + chord.tones[1])
off = midi.NoteOffEvent(tick=110, pitch=midi.C_4 + chord.tones[1])
track.append(on)
track.append(off)
def get_13(pitch, pitch1):
on = midi.NoteOnEvent(tick=0, velocity=85, pitch=pitch)
off = midi.NoteOffEvent(tick=100, pitch=pitch1)
track.extend([on, off])
on = midi.NoteOnEvent(tick=0, velocity=90, pitch=pitch1)
off = midi.NoteOffEvent(tick=300, pitch=pitch)
track.extend([on, off])
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 final(chords, path):
pattern = midi.read_midifile(path)
track = pattern[0]
l = len(track)
chord_counter = 0
num_notes = []
for i in range(l):
if isinstance(track[i], midi.NoteOnEvent):
num_notes.append(i)
i = 0
for index in num_notes:
event1 = midi.NoteOnEvent(tick=0,
channel=0,
data=[chords[chord_counter][0], 60])
event2 = midi.NoteOnEvent(tick=0,
channel=0,
data=[chords[chord_counter][1], 60])
event3 = midi.NoteOnEvent(tick=0,
channel=0,
data=[chords[chord_counter][2], 60])
track.insert(index + 1 + i, event1)
track.insert(index + 2 + i, event2)
track.insert(index + 3 + i, event3)
i += 3
chord_counter += 1
off_indices = []
for i in range(len(track)):
if isinstance(track[i], midi.NoteOffEvent):
off_indices.append(i)
chord_counter = 0
i = 0
for index in off_indices:
event1 = midi.NoteOffEvent(tick=0,
channel=0,
data=[chords[chord_counter][0], 60])
event2 = midi.NoteOffEvent(tick=0,
channel=0,
data=[chords[chord_counter][1], 60])
event3 = midi.NoteOffEvent(tick=0,
channel=0,
data=[chords[chord_counter][2], 60])
track.insert(index + 1 + i, event1)
track.insert(index + 2 + i, event2)
track.insert(index + 3 + i, event3)
i += 3
chord_counter += 1
'''track.insert(7, midi.NoteOnEvent(tick=0, channel=0, data=[36, 90]))'''
print("writing pattern to harmoni.mid")
# print("pattern is ", pattern)
midi.write_midifile("harmoni.mid", pattern)
def build_midi_pattern(note_matrix, midi_ticks_per_step=50):
print('Building MIDI pattern from note matrix...')
note_matrix = trim_note_matrix(note_matrix)
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
tick_distance = 0
previous_time_step = np.zeros(MAX_MIDI_PITCH)
for cur_time_step in note_matrix.T:
for midi_pitch in range(MAX_MIDI_PITCH):
note_type = cur_time_step[midi_pitch]
# no track event
if note_type == 2 or (note_type == 0
and previous_time_step[midi_pitch] == 0):
continue
elif note_type == 0:
off = midi.NoteOffEvent(tick=tick_distance + 2,
pitch=midi_pitch)
track.append(off)
tick_distance = 0
continue
elif previous_time_step[midi_pitch] != 0:
off = midi.NoteOffEvent(tick=tick_distance, pitch=midi_pitch)
track.append(off)
tick_distance = 2
on = midi.NoteOnEvent(tick=tick_distance,
velocity=MIDI_VELOCITY,
pitch=midi_pitch)
track.append(on)
tick_distance = 0
previous_time_step = cur_time_step
tick_distance += midi_ticks_per_step
for midi_pitch in range(MAX_MIDI_PITCH):
note_type = previous_time_step[midi_pitch]
if note_type != 0:
off = midi.NoteOffEvent(tick=tick_distance, pitch=midi_pitch)
track.append(off)
tick_distance = 0
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
print('MIDI pattern completed.')
return pattern
def get_1111(pitch, pitch1, pitch2, patch3):
on = midi.NoteOnEvent(tick=0, velocity=90, pitch=pitch)
off = midi.NoteOffEvent(tick=100, pitch=pitch)
track.extend([on, off])
on = midi.NoteOnEvent(tick=0, velocity=85, pitch=pitch1)
off = midi.NoteOffEvent(tick=100, pitch=pitch1)
track.extend([on, off])
on = midi.NoteOnEvent(tick=0, velocity=88, pitch=pitch2)
off = midi.NoteOffEvent(tick=100, pitch=pitch2)
track.extend([on, off])
on = midi.NoteOnEvent(tick=0, velocity=83, pitch=patch3)
off = midi.NoteOffEvent(tick=100, pitch=patch3)
track.extend([on, off])
def get_track2(track, pit, music_combine):
pit = pit % 12
posi = random.sample([0, 1], 1)[0]
vel = 60
print pit, posi
new_pit = music_combine[pit][posi]
track.append(midi.NoteOnEvent(tick=240, channel=1, velocity=vel, pitch=new_pit[0]))
track.append(midi.NoteOnEvent(tick=0, channel=1, velocity=vel, pitch=new_pit[1]))
track.append(midi.NoteOnEvent(tick=0, channel=1, velocity=vel, pitch=new_pit[2]))
track.append(midi.NoteOffEvent(tick=240, channel=1, velocity=vel, pitch=new_pit[0]))
track.append(midi.NoteOffEvent(tick=0, channel=1, velocity=vel, pitch=new_pit[1]))
track.append(midi.NoteOffEvent(tick=0, channel=1, velocity=vel, pitch=new_pit[2]))
return track
def writeChord(tChord, track):
if len(tChord.absChord) == 0:
return
absChd = tChord.absChord
dur = tChord.dur
tickDur = toMidiTick(dur)
for a in absChd:
track.append(
midi.NoteOnEvent(tick=0, velocity=tChord.vol,
pitch=toMidiPitch(a)))
track.append(midi.NoteOffEvent(tick=tickDur, pitch=toMidiPitch(absChd[0])))
for a in absChd[1:]:
track.append(midi.NoteOffEvent(
tick=0, pitch=toMidiPitch(a))) # Bug fix 26-July-2016
def toMidi(self):
print("called toMidi")
print(self.noteName)
# create midi pattern and track
pattern = midi.Pattern()
track = midi.Track()
pattern.append(track)
# append note events to the track
print("start appending note events")
tempo = midi.SetTempoEvent()
tempo.set_bpm(self.bpm)
track.append(tempo)
rest = 0
for i in range(len(self.noteName)):
if self.noteName[i] == []:
rest += 1
for j in range(len(self.noteName[i])):
on = midi.NoteOnEvent(tick=0 + (rest * self.resolution),
velocity=self.constVelocity,
pitch=self.noteName[i][j])
track.append(on)
rest = 0
for k in range(len(self.noteName[i])):
if k == 0:
off = midi.NoteOffEvent(tick=self.resolution,
pitch=self.noteName[i][k])
else:
off = midi.NoteOffEvent(tick=0, pitch=self.noteName[i][k])
track.append(off)
# create eot
print("creating eot...")
eot = midi.EndOfTrackEvent(tick=1)
track.append(eot)
print("This is the pattern")
print(pattern)
# save the pattern to ./output.mid
print("Saving ...")
midi.write_midifile(self.export + '.mid', pattern)
print("Conversion finished")
def makeSongMidi(song, instruments, volume, name, bpm):
'''
song is a list of lists of pysynth tuples
instruments is a list of ints specifying midi instruments; -1 means to use
channel 9 to produce percussion sounds
volume is a list of ints specifying the volume of each track
name is the song's name
'''
# 220 is completely arbitrary. anything >= 4 should probably work
resolution = 220
pattern = midi.Pattern(resolution=resolution)
tempoEvent = midi.SetTempoEvent(tick=0)
tempoEvent.set_bpm(bpm)
tempoTrack = midi.Track()
tempoTrack.append(tempoEvent)
tempoTrack.append(midi.EndOfTrackEvent(tick=0))
pattern.append(tempoTrack)
for i in range(len(song)):
track = midi.Track()
if instruments[i] != -1:
track.append(
midi.ProgramChangeEvent(tick=0,
channel=i,
data=[instruments[i]]))
for note in song[i]:
noteLetter = note[0][:-1]
noteNum = chromNotesNum[noteLetter] - 1
octave = int(note[0][-1])
pitch = noteNum + (octave - 1) * 12
ticks = int(durationToBeats(note[1]) * resolution)
if instruments[i] != -1:
track.append(
midi.NoteOnEvent(tick=0,
channel=i,
data=[pitch, volume[i]]))
track.append(
midi.NoteOffEvent(tick=ticks, channel=i, data=[pitch, 0]))
else:
track.append(
midi.NoteOnEvent(tick=0,
channel=9,
data=[pitch, volume[i]]))
track.append(
midi.NoteOffEvent(tick=ticks, channel=9, data=[pitch, 0]))
track.append(midi.EndOfTrackEvent(tick=0))
pattern.append(track)
midi.write_midifile('midi/' + name + '.mid', pattern)
def write_flam_note(self, note): on = midi.NoteOnEvent(tick = self.rest, velocity=120, pitch = note) self.track.append(on) off = midi.NoteOffEvent(tick = self.rest+self.note_tightness, pitch = note) self.track.append(off) on = midi.NoteOnEvent(tick = self.rest+1, velocity=120, pitch = note+2) self.track.append(on) off = midi.NoteOffEvent(tick = self.rest+2, pitch = note+2) self.track.append(off) self.rest = self.one_beat_value/self.beat_values_new["1/%d" % self.timing][1] self.rest *= self.rest_beats self.flam = False self.rest_beats = 1
def addmidinote(self, note):
if note.velocity:
newnote = MIDI.NoteOnEvent(pitch=note.pitch, velocity=note.data[1])
else:
newnote = MIDI.NoteOffEvent(pitch=note.pitch)
newnote.absoluteticks = note.absoluteticks
self.piece.addmidinote(newnote, self.currenttrack)
def add_note(long, velocity, pitch):
global track
# pitch: A4=57, A5=69
on = midi.NoteOnEvent(tick=0, velocity=velocity, pitch=pitch)
track.append(on)
off = midi.NoteOffEvent(tick=long * 24, pitch=pitch)
track.append(off)
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 decoder(track, grid):
previousVector = grid[0]
# Search for first note in the grid
for noteIndex, note in enumerate(previousVector):
if note != 0:
on = midi.NoteOnEvent(tick = 0, velocity = int(max(127,min(note,0))), pitch = noteIndex) #Add NoteOn event at tick = 0, velocity = previousVector[noteIndex], pitch = noteIndex
track.append(on)
# Turn off notes and add following
tickOffset = 0
for vector in grid[1:]:
if (previousVector == vector).all():
tickOffset += 1
else:
for noteIndex, note in enumerate(previousVector):
if note == vector[noteIndex]:
continue
if note != 0 and vector[noteIndex] == 0:
off = midi.NoteOffEvent(tick = tickOffset, pitch = noteIndex)
track.append(off)
else:
on = midi.NoteOnEvent(tick = 0, velocity = int(max(127,min(vector[noteIndex],0))), pitch = noteIndex)
track.append(on)
tickOffset = 0
tickOffset += 1
previousVector = vector
return track
def write_note(self, note): print "NOTE:" print note if self.flam == True: self.write_flam_note(note) else: print "before - rest: %d rest_beats: %d" % (self.rest, self.rest_beats) self.rest *= self.rest_beats print "after - rest: %d rest_beats: %d" % (self.rest, self.rest_beats) velocity = 60 if self.accent == True: velocity = 120 self.accent = False # this is where the core of the timing stuff is going on it seems... on = midi.NoteOnEvent(tick = self.rest, velocity=velocity, pitch = note) print "midi on event generated at %d" % self.rest self.track.append(on) off = midi.NoteOffEvent(tick = self.note_tightness, pitch = note) self.track.append(off) self.rest = self.one_beat_value/self.beat_values_new["1/%d" % self.timing][1] print "self.rest" print self.rest self.rest_beats = 1
def event_read(self):
ev = S.event_input(self.client)
if ev and (ev < 0): self._error(ev)
if ev and ev.type in (S.SND_SEQ_EVENT_NOTEON, S.SND_SEQ_EVENT_NOTEOFF,
S.SND_SEQ_EVENT_CONTROLLER):
if ev.type == S.SND_SEQ_EVENT_NOTEON:
mev = midi.NoteOnEvent()
mev.channel = ev.data.note.channel
mev.pitch = ev.data.note.note
mev.velocity = ev.data.note.velocity
elif ev.type == S.SND_SEQ_EVENT_NOTEOFF:
mev = midi.NoteOffEvent()
mev.channel = ev.data.note.channel
mev.pitch = ev.data.note.note
mev.velocity = ev.data.note.velocity
elif ev.type == S.SND_SEQ_EVENT_CONTROLLER:
mev = midi.ControlChangeEvent()
mev.channel = ev.data.control.channel
mev.control = ev.data.control.param
mev.value = ev.data.control.value
if ev.time.time.tv_nsec:
# convert to ms
mev.msdeay = \
(ev.time.time.tv_nsec / 1e6) + (ev.time.time.tv_sec * 1e3)
else:
mev.tick = ev.time.tick
return mev
else:
return None
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 generate_audio_track(data, note_phrases, length, instrument=None):
notes = data[0]["note_matrix"]
if instrument is None:
valid_instruments = list(
set(notes.keys()).intersection(note_phrases.keys()))
instrument = random.choice(valid_instruments)
note_mats = [d["note_matrix"][instrument] for d in data]
if len(note_phrases[instrument]) == 0:
return None
phrases = generate_note_sequence(note_phrases[instrument],
note_mats,
length,
tick_max=160)
track = midi.Track()
track.append(midi.TrackNameEvent())
prog = midi.ProgramChangeEvent()
prog.set_value(instrument)
track.append(prog)
for i in xrange(0, len(phrases)):
for j in xrange(0, len(phrases[i]["tick"])):
pitch = phrases[i]["pitch"][j]
velocity = phrases[i]["velocity"][j]
note_type = phrases[i]["type"][j]
tick = phrases[i]["tick"][j]
obj = midi.NoteOnEvent(channel=0)
if note_type == "off":
obj = midi.NoteOffEvent(channel=0)
obj.set_pitch(pitch)
obj.set_velocity(velocity)
obj.tick = tick
track.append(obj)
track.append(midi.EndOfTrackEvent())
return track
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 generateChapter(self, pitch_list):
headwait = 0
startindex = 0
strokes = []
for i in range(self.chapterlength):
if (pitch_list[i] == 0):
headwait += self.interval
else:
startindex = i
break
tick = [self.interval] * self.chapterlength
for i in range(startindex, self.chapterlength - 1):
if (pitch_list[i] != 0):
for j in range(i + 1, self.chapterlength):
if (pitch_list[j] == 0):
tick[i] += self.interval
else:
break
for i in range(startindex, self.chapterlength):
if (pitch_list[i] != 0):
self.track.append(
midi.NoteOnEvent(tick=startindex * self.interval,
velocity=self.velocity,
pitch=pitch_list[i]))
self.track.append(
midi.NoteOffEvent(tick=tick[i], pitch=pitch_list[i]))
startindex = 0
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 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 extendcursorselection(self, aggressive=False):
# quick delete
tickmin, tickmax, midimin, midimax = self.selectcursorselection()
# we hebben een selectie gaande...
self.piece.deletenotes(self.selectednotes, self.currenttrack)
extension = 0.5 * (aggressive + 1) * self.currentnoteticks
i = 0
while i < len(self.selectednotes):
notei = self.selectednotes[i]
j = i + 1
while j < len(self.selectednotes):
notej = self.selectednotes[j]
if (notej[0] == notei[0] # zelfde pitch
and notej[2] - config.EDITnotespace <=
notei[2] + notei[3] + extension):
# pitch is hetzelfde alleen zijn ze samengevoegd
# so extend notei up into notej
notei[3] = notej[3] + (notej[2] - notei[2]
) # nog niet verlengen
# note j "gedood" door i:
del self.selectednotes[j]
else:
j += 1
i += 1
if self.selectednotes:
for note in self.selectednotes:
midinote = MIDI.NoteOnEvent(pitch=note[0], velocity=note[1])
midinote.absoluteticks = note[2]
self.addmidinote(midinote)
if self.piece.deleteonnote(note[0], [
note[2],
note[2] + note[3] + extension + config.EDITnotespace
], self.currenttrack):
midinote = MIDI.NoteOffEvent(pitch=note[0])
midinote.absoluteticks = note[2] + note[3] + extension
self.addmidinote(midinote)
if aggressive:
alerttxt = "aggresief erg verlengde noten "
else:
alerttxt = "verlengde noten "
self.setcurrentticksandload(self.currentabsoluteticks)
if config.SMALLalerts:
self.setalert(alerttxt[:-4])
else:
if midimax - midimin >= 127:
self.setalert(alerttxt + str(
int(
round(1.0 * (tickmax - tickmin) /
self.currentnoteticks))) + " rows")
else:
self.setalert(alerttxt + str(
int(
round(1.0 * (tickmax - tickmin) /
self.currentnoteticks))) + " rows, " +
str(midimax - midimin + 1) + " columns")
else:
self.setalert("geen noten om te verlengen.")
def generateMidiNotes(pitches,track):
for idx in range(len(pitches)):
velocity = 0 if (pitches[idx] == pitches[idx-1]) else 100;
on = midi.NoteOnEvent(tick=0, velocity=velocity, pitch=pitches[idx])
track.append(on)
off = midi.NoteOffEvent(tick=100, pitch=pitches[idx])
track.append(off)
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 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 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)