def save_midi(grid, path, click_track=False, click_track_start=0, accent_downbeat=False, period=0, pulse=1, bpm=240, channel=9, pitch=75, velocity=100):
'''
bpm means grid-units per second in this case
'''
phase, iois = rhythm_tools.grid_to_iois(grid)
track = 0
mf = MIDIFile(1)
mf.addTrackName(track, 0, "Sample Track")
mf.addTempo(track, 0, bpm)
rhythm_start = 0
if click_track:
if click_track_start < 0:
rhythm_start = -click_track_start
click_track_start = 0
click_track_end = (
rhythm_start + len(iois)
)
print(rhythm_start, click_track_start)
write_click_track(mf, start_time=click_track_start, end_time=click_track_end, period=period, pulse=pulse, velocity=velocity, accent_downbeat=accent_downbeat)
write_iois(mf, iois, start_time=rhythm_start, track=track, channel=channel, pitch=pitch, velocity=velocity)
with open(path, 'wb') as midi_file:
mf.writeFile(midi_file)
class GenerateMelody(object):
def __init__(self, file, pitch, length, beat_duration):
self.pitch = pitch
self.length = abs(length)
self.file = file
self.midi_melody = MIDIFile(1)
self.beat_duration = abs(beat_duration)
def get_filename(self):
if not self.file.endswith(".mid"):
return self.file + ".mid"
return self.file
def get_random_pitch(self):
step = random.randint(-5, 5)
return abs(self.pitch + step)
@staticmethod
def get_random_volume():
return random.randint(70, 127)
def generate(self):
time = 0
self.midi_melody.addTempo(0, time, 60)
while time < self.length:
self.midi_melody.addNote(0, 0, self.get_random_pitch(), time,
self.beat_duration, self.get_random_volume())
time += self.beat_duration
binfile = open(self.get_filename(), 'wb')
self.midi_melody.writeFile(binfile)
binfile.close()
class Midi:
"""Musique midi"""
def __init__(self,partition,tempo):
# Définition des paramètres MIDI.
piste = 0
temps = 0
self.sortieMidi = MIDIFile(1)
# Nom de la piste.
self.sortieMidi.addTrackName(piste,temps,"Gregorien")
# Tempo.
self.sortieMidi.addTempo(piste,temps, tempo)
# Instrument (74 : flûte).
self.sortieMidi.addProgramChange(piste,0,temps,74)
# À partir des propriétés de la note, création des évènements
# MIDI.
for note in partition:
channel = 0
pitch = note.hauteur
duree = note.duree
volume = 127
self.sortieMidi.addNote(piste,
channel,
pitch,
temps,
duree,
volume)
temps += duree
def ecrire(self,chemin):
"""Écriture effective du fichier MIDI"""
binfile = open(chemin, 'wb')
self.sortieMidi.writeFile(binfile)
binfile.close()
def createFile(self):
MIDI = MIDIFile(1)
MIDI.addTrackName(0,0,self.name)
MIDI.addTempo(0,0, self.bpm)
beat = 0
for chord in self.chords:
for degree in chord.degrees:
MIDI.addNote(0,0,self.scale.scaleNotes[degree],beat,1,chord.intensity)
beat = beat + 1
if not os.path.exists(songFolder):
os.makedirs(songFolder)
midiFile = open("%s/%d.%d-%s.mid"%(songFolder, self.generation, self.songnum, self.name), 'wb')
MIDI.writeFile(midiFile)
midiFile.close()
def make(self):
with open("output.mid", 'wb') as f:
MyMIDI = MIDIFile(1)
track = 0
time = 0
channel = 0
volume = 100
MyMIDI.addTrackName(track, self.tempo, "Sample Track")
MyMIDI.addTempo(track, time, 120)
for part in self.structure:
for note in self.riffs[part][0].score:
MyMIDI.addNote(track, channel, note.pitch, time, note.duration, volume)
time += note.duration
MyMIDI.writeFile(f)
def arrayToMidiDouble(aArray, count):
MyMIDI = MIDIFile(1)
MyMIDI.addTrackName(0,0,"Red")
MyMIDI.addTempo(0,0,120)
time = 0
for j in range(len(aArray)):
# randDur = choice([0.5, 0.25, 1, 2, 4])
randDur = 1
pitch = aArray[j]
MyMIDI.addNote(0,0,pitch,time,randDur,100)
time += randDur
name = str(count) + ".mid"
print(name)
binfile = open(name, 'wb')
MyMIDI.writeFile(binfile)
binfile.close()
print("finishing producing midi")
return (name)
class Midi:
"""Musique midi"""
def __init__(self, partition, titre, tempo):
# Définition des paramètres MIDI.
piste = 0
temps = 0
self.sortiemidi = MIDIFile(1)
# Nom de la piste.
self.sortiemidi.addTrackName(piste, temps, sansaccents(titre))
# Tempo.
self.sortiemidi.addTempo(piste, temps, tempo)
# Instrument (74 : flûte).
self.sortiemidi.addProgramChange(piste, 0, temps, 74)
self.traiter_partition(partition, piste, temps)
def traiter_partition(self, partition, piste, temps):
"""Création des évènements MIDI"""
transposition = partition.transposition
for neume in partition.musique:
for note in (
notes for notes in neume if isinstance(notes, Note)
):
channel = 0
pitch = note.hauteur + transposition
duree = note.duree
volume = 127
self.sortiemidi.addNote(
piste,
channel,
pitch,
temps,
duree,
volume
)
temps += duree
def ecrire(self, chemin):
"""Écriture effective du fichier MIDI"""
with (
open(sys.stdout.fileno(), 'wb')
if chemin == '-'
else open(chemin, 'wb')
)as sortie:
self.sortiemidi.writeFile(sortie)
def midiSing(sheet, instruments, key, ticktime, filename):
offset = NOTES.index(key) + 60 # Middle C is MIDI note #60
midi=MIDIFile(len(sheet))
replaceprint('Creating midi...')
for t in range(0,len(sheet)):
midi.addTrackName(t, 0, "Track %s"%t)
midi.addTempo(t, 0, 60000/(ticktime))
sheet[t]=sheet[t][1:]+[(sheet[t][0],0)]
tracklen=len(sheet[t])
for n in range(0,tracklen-1):
time, note = sheet[t][n]
duration = sheet[t][(n+1)%tracklen][0]-time
midi.addNote(t,0,offset+note,time,duration,100)#MyMIDI.addNote(track,channel,pitch,time,duration,volume)
replaceprint('Writing to file...')
binfile = open(filename+".mid", 'wb')
midi.writeFile(binfile)
binfile.close()
replaceprint('Synth complete!')
print("\nMID output to: \"" + filename+ ".mid\"")
def midi(self, path, bpm=240, channel=9, pitch=75, velocity=100):
from midiutil.MidiFile3 import MIDIFile
track = 0
time = 0
mf = MIDIFile(1)
mf.addTrackName(track, time, "Sample Track")
mf.addTempo(track, time, bpm)
for duration in self.durations:
mf.addNote(track, channel, pitch, time, duration, velocity)
time += duration
# write it to disk
with open(path, 'wb') as midi_file:
mf.writeFile(midi_file)
def construct_midi(filename, bpm, trackname, beat_intervals):
# Create a MIDI with one track
MyMIDI = MIDIFile(1)
track = 0
time = 0
MyMIDI.addTrackName(track, time, trackname)
MyMIDI.addTempo(track, time, bpm)
TIME_COUNTER = 0
for beat_interval in beat_intervals:
acappella_measure = chord_from_beat(beat_interval)
TIME_COUNTER = _add_measure(
acappella_measure,
TIME_COUNTER,
MyMIDI
)
binfile = open("../output/" + filename, 'wb')
MyMIDI.writeFile(binfile)
binfile.close()
precipitation = 1 moonphase = 8 highTempAdjustment = 30 lowTempAdjustment = 30 # Create the MIDIFile Object with 3 tracks plus names of tracks MyMIDI = MIDIFile(3) MyMIDI.addTrackName(track1,time,"Temperature MusicHI") time = time +1 MyMIDI.addTrackName(track2,time,"Temperature MusicLOW") time = time +1 MyMIDI.addTrackName(track3,time,"Temperature MusicPrecip") time = time +1 MyMIDI.addTempo(track1,time, beats) time = time +1 MyMIDI.addTempo(track2,time, beats) time = time +1 MyMIDI.addTempo(track3,time, beats) # set voice (sound) to be played on tracks # we used General Midi sounds ( see General Midi docs ) time = time +1 MyMIDI.addProgramChange(track1,0, time, 47) # voice 1 = 86 fretless bass #time = time +1 MyMIDI.addProgramChange(track2,1, time, 112) # voice 2 = 53 time = time +1 MyMIDI.addProgramChange(track3,2, time, 77) # cymbal = 119 time = time +1
#Import the library
from midiutil.MidiFile3 import MIDIFile
import csv
track1 = 0
track2 = 1
time = 0
MyMIDI = MIDIFile(2)
MyMIDI.addTrackName(track1,time,"Temperature MusicHI")
time = time +1
MyMIDI.addTrackName(track2,time,"Temperature MusicLOW")
time = time +1
MyMIDI.addTempo(track1,time, 540)
time = time +1
MyMIDI.addTempo(track2,time, 540)
time = time +1
MyMIDI.addProgramChange(track1,0, time, 1)
time = time +1
MyMIDI.addProgramChange(track2,1, time, 2)
time = time +1
#f = open("climate2010.txt")
#for row in csv.reader(f):
channel = 0
channel2 = 1
from midiutil.MidiFile3 import MIDIFile MyMIDI = MIDIFile(1) track = 0 time = 0 MyMIDI.addTrackName(track, time, "Sample Track") MyMIDI.addTempo(track, time, 120) track = 0 channel = 0 pitch = 60 time = 4 duration = 1 volume = 100 MyMIDI.addNote(track,channel,pitch,time,duration,volume) track = 0 channel = 1 pitch = 64 time = 8 duration = 1 volume = 100 MyMIDI.addNote(track,channel,pitch,time,duration,volume) track = 0 channel = 2 pitch = 67 time = 12 duration = 1
def create_midi_from_progression(progression):
"""
Given a chord progression in the form of a list of chord instances,
creates a MIDI file as an output.
"""
MyMIDI = MIDIFile(4)
track = 0
time = 0
MyMIDI.addTrackName(track, time, "Soprano")
MyMIDI.addTempo(track, time, 60)
track += 1
MyMIDI.addTrackName(track, time, "Alto")
MyMIDI.addTempo(track, time, 60)
track += 1
MyMIDI.addTrackName(track, time, "Tenor")
MyMIDI.addTempo(track, time, 60)
track += 1
MyMIDI.addTrackName(track, time, "Bass")
MyMIDI.addTempo(track, time, 60)
channel = 0
duration = 1
volume = 100
for index, chord in enumerate(progression):
track = 3
for note in chord.get_notes():
pitch = note.get_midi_number()
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
track -= 1
time += 1
if index == len(progression) - 2:
duration = 2
binfile = open("output_individual_voices.mid", 'wb')
MyMIDI.writeFile(binfile)
binfile.close()
MyMIDI = MIDIFile(2)
track = 0
time = 0
MyMIDI.addTrackName(track, time, "Upper Voices")
MyMIDI.addTempo(track, time, 60)
track += 1
MyMIDI.addTrackName(track, time, "Lower Voices")
MyMIDI.addTempo(track, time, 60)
duration = 1
for index, chord in enumerate(progression):
track = 1
count = 0
for note in chord.get_notes():
pitch = note.get_midi_number()
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
if count % 2 == 1:
track -= 1
count += 1
time += 1
if index == len(progression) - 2:
duration = 2
binfile = open("output_two_hands.mid", 'wb')
MyMIDI.writeFile(binfile)
binfile.close()
def save_midi_file(self):
if len(self.messages_captured) == 0:
return
my_midi = MIDIFile(2)
track = 0
my_midi.addTrackName(track, 0, "Tempo track")
my_midi.addTempo(track, 0, self.bpm)
track += 1
my_midi.addTrackName(track, 0, "Song track")
total_time = 0
midi_messages_on = []
midi_messages_off = []
midi_messages_controller = []
for message in self.messages_captured:
if len(message) != 3:
self.write_message("wrong length: skipping " + str(message))
continue
total_time += message.time_stamp
# seconds -> beat conversion
total_time_adjusted = total_time * float(self.bpm) / float(60)
if message.type == MidiEventTypes.NOTE_ON:
midi_messages_on.append(
{'note': message[1], 'velocity': message[2], 'time': total_time_adjusted, 'channel': message.channel})
elif message.type == MidiEventTypes.NOTE_OFF:
midi_messages_off.append(
{'note': message[1], 'velocity': message[2], 'time': total_time_adjusted, 'channel': message.channel})
elif message.type == MidiEventTypes.CONTROL_CHANGE:
midi_messages_controller.append(
{'type': message[1], 'value': message[2], 'time': total_time_adjusted, 'channel': message.channel})
else:
self.write_message("unknown message: skipping " + str(message))
continue
for m_on in midi_messages_on:
for m_off in midi_messages_off:
if m_off['note'] == m_on['note'] and m_off['time'] > m_on['time']:
m_on['duration'] = m_off['time'] - m_on['time']
m_off['note'] = -1
break
else:
m_on['duration'] = float(
15) * float(self.bpm) / float(60) # suspended
for m in midi_messages_on:
my_midi.addNote(
track, m['channel'], m['note'], m['time'], m['duration'], m['velocity'])
for m in midi_messages_controller:
my_midi.addControllerEvent(
track, m['channel'], m['time'], m['type'], m['value'])
file_name = self.midi_file_name.format(
datetime.datetime.now().strftime("%Y%m%d-%H%M%S"))
file_path = os.path.join(os.path.dirname(sys.argv[0]), file_name)
self.write_message("Saving {0} MIDI messages to {1}...".format(
len(self.messages_captured), file_name))
binfile = open(file_path, 'wb')
my_midi.writeFile(binfile)
binfile.close()
self.messages_captured = []
self.write_message("Saved.")
filename = 'mattys-tune.txt'
beats_per_minute = 756
with open(filename) as f:
for line in f:
if len(line) > 3 and (line[1] == '|' or line[2] == '|'):
line = line.replace('\n', '')
lines.append(line)
assert len(lines) % 6 == 0
# Initialize the MIDIFile object (with 1 track)
time = 0
duration = 10
volume = 100
song = MIDIFile(1)
song.addTrackName(0, time, "pianized_guitar_tab.")
song.addTempo(0, time, beats_per_minute)
# The root-pitches of the guitar
guitar = list(reversed([52, 57, 62, 67, 71, 76])) # Assume EADGBe tuning
def add_note(string, fret):
song.addNote(0, string, guitar[string] + fret, time, duration, volume)
# Process the entire tab
for current in range(0, len(lines), 6): # The current base string
for i in range(len(lines[current])): # The position in the current string
time += 1
for s in range(6): # The number of the string
c = lines[current + s][i]
try: next_char = lines[current + s][i + 1]
except: next_char = ''
if c in '-x\\/bhp':
windSpeed = 6 precipitation = 1 highTempAdjustment = 30 lowTempAdjustment = 30 # Create the MIDIFile Object with 3 tracks plus names of tracks MyMIDI = MIDIFile(3) MyMIDI.addTrackName(track1,time,"Temperature MusicHI") time = time +1 MyMIDI.addTrackName(track2,time,"Temperature MusicLOW") time = time +1 MyMIDI.addTrackName(track3,time,"Temperature MusicPrecip") time = time +1 MyMIDI.addTempo(track1,time, beats) time = time +1 MyMIDI.addTempo(track2,time, beats) time = time +1 MyMIDI.addTempo(track3,time, beats) # set voice (sound) to be played on tracks # we used General Midi sounds ( see General Midi docs ) time = time +1 MyMIDI.addProgramChange(track1,0, time, 112) # voice 1 = 86 fretless bass #time = time +1 MyMIDI.addProgramChange(track2,1, time, 112) # voice 2 = 53 time = time +1 MyMIDI.addProgramChange(track3,2, time, 119) # cymbal = 119 time = time +1
class MIDITime(object):
def __init__(self, tempo=120, outfile='miditime.mid', seconds_per_year=5, base_octave=5, octave_range=1, custom_epoch=None):
self.tempo = tempo
self.outfile = outfile
self.tracks = []
if custom_epoch: # Only necessary if you have data that starts before 1970 and DO NOT want to start your midi at the first sound.
self.epoch = custom_epoch
else:
self.epoch = datetime.datetime(1970, 1, 1)
self.seconds_per_year = seconds_per_year
self.base_octave = base_octave
self.octave_range = octave_range
self.note_chart = [["C"], ["C#", "Db"], ["D"], ["D#", "Eb"], ["E"], ["F"], ["F#", "Gb"], ["G"], ["G#", "Ab"], ["A"], ["A#", "Bb"], ["B"]]
def beat(self, numdays):
beats_per_second = self.tempo / 60.0
beats_per_datayear = self.seconds_per_year * beats_per_second
beats_per_dataday = beats_per_datayear / 365.25
return round(beats_per_dataday * numdays, 2)
def check_tz(self, input):
if input.tzinfo:
return input.tzinfo
else:
return None
# Match the compare date to the timezone of whatever your input date is, if the input datetime is timezone-aware
def normalize_datetime(self, input, compare_date):
# if input is date, make epoch a date
if type(input) is datetime.date:
return compare_date.date()
# # First, coerce to datetime in case it's a date
# if type(input) is datetime.date:
# input = datetime.datetime.combine(input, datetime.datetime.min.time())
# If tz data present, make epoch tz-aware
tz = self.check_tz(input)
if tz:
return tz.localize(compare_date)
else:
return compare_date
def days_since_epoch(self, input):
normalized_epoch = self.normalize_datetime(input, self.epoch)
return (input - normalized_epoch).total_seconds() / 60 / 60 / 24 # How many days, with fractions
def map_week_to_day(self, year, week_num, desired_day_num=None):
''' Helper for weekly data, so when you jump to a new year you don't have notes playing too close together. Basically returns the first Sunday, Monday, etc. in 0-indexed integer format that is in that week.
Usage: Once without a desired_day_num, then feed it a day_num in the loop
Example:
first_day = self.map_week_to_day(filtered_data[0]['Year'], filtered_data[0]['Week'])
for r in filtered_data:
# Convert the week to a date in that week
week_start_date = self.map_week_to_day(r['Year'], r['Week'], first_day.weekday())
# To get your date into an integer format, convert that date into the number of days since Jan. 1, 1970
days_since_epoch = self.mymidi.days_since_epoch(week_start_date)
'''
year_start = datetime.datetime(int(year), 1, 1).date()
year_start_day = year_start.weekday()
week_start_date = year_start + datetime.timedelta(weeks=1 * (int(week_num) - 1))
week_start_day = week_start_date.weekday()
if desired_day_num and week_start_day < desired_day_num:
return week_start_date + datetime.timedelta(days=(desired_day_num - week_start_day))
return week_start_date
def get_data_range(self, data_list, attribute_name, ignore_nulls=True):
data_list = list(data_list) # If the data is still a CSV object, once you loop through it you'll get rewind issues. So coercing to list.
if ignore_nulls:
minimum = min([float(d[attribute_name]) for d in data_list if d[attribute_name]])
maximum = max([float(d[attribute_name]) for d in data_list if d[attribute_name]])
else:
minimum = min([float(d[attribute_name]) for d in data_list])
maximum = max([float(d[attribute_name]) for d in data_list])
return [minimum, maximum]
def scale_to_note_classic(self, scale_pct, mode): # Only works in multi-octave mode if in C Major (i.e. all the notes are used. Should not be used in other keys, unless octave range is 1.)
full_mode = []
n = 0
while n < self.octave_range:
for m in mode:
current_octave = str(self.base_octave + (n * 1))
full_mode.append(m + current_octave)
n += 1
index = int(scale_pct * float(len(full_mode)))
if index >= len(full_mode):
index = len(full_mode) - 1
print(full_mode[index])
return full_mode[index]
def scale_to_note(self, scale_pct, mode): # Manually go through notes so it doesn't inaccurately jump an octave sometimes.
# First, write out a list of the possible notes for your octave range (i.e. all of the notes on the keyboard)
full_c_haystack = []
n = 0
while n < self.octave_range:
for note_group in self.note_chart:
out_group = []
for note in note_group:
current_octave = self.base_octave + (n * 1)
out_group.append(note + str(current_octave))
full_c_haystack.append(out_group)
n += 1
full_mode = []
n = 0
while n < self.octave_range:
for note in mode:
note_found = False
note_key = None
for groupkey, group in enumerate(full_c_haystack):
for gnote in group:
if gnote[:-1] == note:
full_mode.append(gnote)
note_found = True
note_key = groupkey
if note_found:
break
full_c_haystack = full_c_haystack[note_key:]
n += 1
# Now run through your specified mode and pick the exact notes in those octaves
index = int(scale_pct * float(len(full_mode)))
if index >= len(full_mode):
index = len(full_mode) - 1
return full_mode[index]
def note_to_midi_pitch(self, notename):
midinum = 0
letter = notename[:-1]
octave = notename[-1]
i = 0
for note in self.note_chart:
for form in note:
if letter == form:
midinum = i
break
i += 1
midinum += (int(octave)) * 12
return midinum
def linear_scale_pct(self, domain_min, domain_max, input, reverse=False):
domain_range = float(domain_max) - float(domain_min)
domain_pct = (input - domain_min) / domain_range
if reverse:
domain_pct = 1 - domain_pct
return domain_pct
def log_scale_pct(self, domain_min, domain_max, input, reverse=False, direction='exponential'):
if direction == 'exponential': # E.G. earthquakes
min_log_domain = pow(10, domain_min)
max_log_domain = pow(10, domain_max)
domain_range = max_log_domain - min_log_domain
log_input = pow(10, input)
elif direction == 'log': # natural log scale
if domain_min > 0:
min_log_domain = log(domain_min)
else:
min_log_domain = log(0.1) # Technically this is not a true log scale. Someone smarter than me will have to figure this out.
if domain_max > 0:
max_log_domain = log(domain_max)
else:
max_log_domain = log(0.1) # Technically this is not a true log scale. Someone smarter than me will have to figure this out.
domain_range = max_log_domain - min_log_domain
log_input = log(input)
domain_pct = (log_input - min_log_domain) / domain_range
if reverse:
domain_pct = 1 - domain_pct
return domain_pct
def scale(self, range_min, range_max, input_pct):
scale_range = range_max - range_min
return range_min + (input_pct * scale_range)
def add_track(self, note_list):
self.tracks.append(note_list)
def add_note(self, track, channel, note):
time = note[0]
pitch = note[1]
volume = note[2]
duration = note[3]
print(pitch, time, duration, volume)
# Now add the note.
self.MIDIFile.addNote(track, channel, pitch, time, duration, volume)
def save_midi(self):
# Create the MIDIFile Object with 1 track
self.MIDIFile = MIDIFile(len(self.tracks))
for i, note_list in enumerate(self.tracks):
# Tracks are numbered from zero. Times are measured in beats.
track = i
time = 0
# Add track name and tempo.
self.MIDIFile.addTrackName(track, time, "Track 1")
self.MIDIFile.addTempo(track, time, self.tempo)
for n in note_list:
if len(n) == 2:
note = n[0]
channel = n[1]
else:
note = n
channel = 0
self.add_note(track, channel, note)
# And write it to disk.
binfile = open(self.outfile, 'wb')
self.MIDIFile.writeFile(binfile)
binfile.close()
from midiutil.MidiFile3 import MIDIFile import random # Create the MIDIFile Object MyMIDI = MIDIFile(6) # Add track name and tempo. The first argument to addTrackName and # addTempo is the time to write the event. track = 0 time = 0 channel = 0 program = 0 volume = 100 #Adding instruments MyMIDI.addTrackName(track,time,"Mellow Ambience I") MyMIDI.addTempo(track,time,92) MyMIDI.addProgramChange(track,channel,time,program+53) MyMIDI.addTrackName(track+1,time,"Harpsichord") MyMIDI.addTempo(track+1,time, 92) MyMIDI.addProgramChange(track+1,channel+1,time,program+107) MyMIDI.addTrackName(track+2,time,"Percussion") MyMIDI.addTempo(track+2,time, 92) MyMIDI.addProgramChange(track+2,channel+2,time,program+47) #Saving Randomness state random.seed(1337,2) # Get pitch of note def getPitch(key, pitchOct):
# and write to disk. ############################################################################ #Import the library from midiutil.MidiFile3 import MIDIFile MyMIDI = MIDIFile(1) # Add track name and tempo. The first argument to addTrackName and # addTempo is the time to write the event. track = 0 time = 0 channel = 9 MyMIDI.addTrackName(track,time,"Sample Track") MyMIDI.addTempo(track,time, 120) time = time = 2 MyMIDI.addProgramChange(0,channel, time, 44) # voice 1 = 86 fretless bass # Add a note. addNote expects the following information: pitch = 60 duration = 10 volume = 100 duration2 = 5 # Now add the note. MyMIDI.addNote(track,channel,pitch,time,duration,volume) time = time + 1 MyMIDI.addNote(track,channel,pitch,time,duration,volume) time = time + 1.25
class MidiCreator(object):
def __init__(self, config_file_name):
"""Convert data in a CSV file to a MIDI file."""
# load instrument names and MIDI note ranges from config file
self._config = configparser.ConfigParser()
self._config.read(config_file_name)
# Create the MIDIFile object with 1 track
self._midi = MIDIFile(1)
# Add track name and tempo.
self._midi.addTrackName(
0, # track number
0, # time
self._config.get('midi',
'track name',
fallback=DEFAULT_TRACK_NAME))
self._midi.addTempo(
0, # track number
0, # time
int(self._config.get('midi',
'tempo',
fallback=DEFAULT_TEMPO)))
def _init_note_makers(self, csv_file_name):
"""Create a list of NoteMaker objects, one for each csv column that is
mapped to an instrument by the config file."""
self._note_makers = []
csv_file = open(csv_file_name)
# first line of csv file must have column names
columns = csv_file.readline().strip().split(',')
# Create one notemaker instance for every csv column that we'll be
# using to produce music. Each notemaker is assigned to a separate
# channel, since each instrument must have its own channel.
channel = 0
for column_index, column_name in enumerate(columns):
if NoteMaker.is_musical_column(column_name, self._config):
if self._config['columns'][column_name]:
self._note_makers.append(
NoteMaker(column_name, column_index, self._midi,
self._config, channel))
channel += 1
if channel > 15:
print("Warning: more than 16 channels, ignoring excess.")
break
# Now each notemaker object needs to know the maximum value for its
# data column, so that it can be scaled to fit the range of the
# instrument assigned to that column.
for line in csv_file:
split_line = line.strip().split(',')
for note_maker in self._note_makers:
note_maker.test_for_max(split_line)
def write_midi_file(self, csv_file_name, midi_file_name):
# Create a list of pitchmaker objects, one for each column that will be
# used to produce music.
self._init_note_makers(csv_file_name)
# Write notes to the midi file
csv_file = open(csv_file_name)
csv_file.readline() # skip header
for line in csv_file:
split_line = line.strip().split(',')
for note_maker in self._note_makers:
note_maker.add_note(split_line)
# write the midi data to disk
with open(midi_file_name, 'wb') as midi_file:
self._midi.writeFile(midi_file)
def create_midi_from_progression(progression):
"""
Given a chord progression in the form of a list of chord instances,
creates a MIDI file as an output.
"""
MyMIDI = MIDIFile(4)
track = 0
time = 0
MyMIDI.addTrackName(track, time, "Soprano")
MyMIDI.addTempo(track, time, 60)
track += 1
MyMIDI.addTrackName(track, time, "Alto")
MyMIDI.addTempo(track, time, 60)
track += 1
MyMIDI.addTrackName(track, time, "Tenor")
MyMIDI.addTempo(track, time, 60)
track += 1
MyMIDI.addTrackName(track, time, "Bass")
MyMIDI.addTempo(track, time, 60)
channel = 0
duration = 1
volume = 100
for index, chord in enumerate(progression):
track = 3
for note in chord.get_notes():
pitch = note.get_midi_number()
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
track -= 1
time += 1
if index == len(progression) - 2:
duration = 2
binfile = open("output_individual_voices.mid", 'wb')
MyMIDI.writeFile(binfile)
binfile.close()
MyMIDI = MIDIFile(2)
track = 0
time = 0
MyMIDI.addTrackName(track, time, "Upper Voices")
MyMIDI.addTempo(track, time, 60)
track += 1
MyMIDI.addTrackName(track, time, "Lower Voices")
MyMIDI.addTempo(track, time, 60)
duration = 1
for index, chord in enumerate(progression):
track = 1
count = 0
for note in chord.get_notes():
pitch = note.get_midi_number()
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
if count % 2 == 1:
track -= 1
count += 1
time += 1
if index == len(progression) - 2:
duration = 2
binfile = open("output_two_hands.mid", 'wb')
MyMIDI.writeFile(binfile)
binfile.close()
def image_process_2():
image = cv2.imread('temp/src_image.jpg', 0)
list_ = image.tolist()
if max(map(max, list_)) > 225:
thresh_1 = 0.66 * max(map(max, list_))
thresh_2 = 0.70 * max(map(max, list_))
thresh_3 = 0.72 * max(map(max, list_))
elif max(map(max, list_)) < 200:
thresh_1 = 0.65 * max(map(max, list_))
thresh_2 = 0.75 * max(map(max, list_))
thresh_3 = 0.84 * max(map(max, list_))
else:
thresh_1 = 0.66 * max(map(max, list_))
thresh_2 = 0.72 * max(map(max, list_))
thresh_3 = 0.75 * max(map(max, list_))
ret, img_gray1 = cv2.threshold(dstImg, thresh_1, 255, cv2.THRESH_BINARY)
ret, img_gray2 = cv2.threshold(dstImg, thresh_2, 255, cv2.THRESH_BINARY)
ret, img_gray3 = cv2.threshold(dstImg, thresh_3, 255, cv2.THRESH_BINARY)
img_gray = 255 * np.ones(shape=[780, 551], dtype=np.uint8)
# cv2.namedWindow("img_gray", cv2.WINDOW_AUTOSIZE)
# cv2.imshow("img_gray", img_gray)
for i in range(780):
for j in range(551):
if img_gray1[i][j] == 0 and img_gray2[i][j] == 0 and img_gray3[i][
j] == 0:
img_gray[i][j] = 0
elif img_gray1[i][j] == 0 or img_gray2[i][j] == 0:
if img_gray3[i][j] == 0:
img_gray[i][j] = 0
elif img_gray1[i][j] == 0 or img_gray3[i][j] == 0:
if img_gray2[i][j] == 0:
img_gray[i][j] = 0
elif img_gray2[i][j] == 0 or img_gray3[i][j] == 0:
if img_gray1[i][j] == 0:
img_gray[i][j] = 0
img = img_gray
# height, width = img.shape[:2]
# img_width, img_height = img_gray.shape[::-1]
# <<找五線譜
staff_recs = locate_images(img_gray, staff_imgs, staff_lower, staff_upper,
staff_thresh)
staff_recs = [j for i in staff_recs for j in i]
heights = [r.y for r in staff_recs] + [0]
histo = [heights.count(i) for i in range(0, max(heights) + 1)]
avg = np.mean(list(set(histo)))
staff_recs = [r for r in staff_recs if histo[r.y] > avg]
staff_recs = merge_recs(staff_recs, 0.01)
# staff_recs_img = img.copy()
# for r in staff_recs:
# r.draw(staff_recs_img, (0, 0, 255), 2)
# >>
# <<找五線譜的模板
resul = []
resul.append(staff_recs[0])
for index, item in enumerate(staff_recs):
if abs(resul[-1].y - item.y) > 100:
resul.append(item)
else:
continue
# print("resul", resul)
# >>
# <<找五線譜的y座標
staff = []
line_axis = []
for item in resul:
# print("item.y", item.y)
line_axis.append(item.y)
y_project = []
line_ = []
for i in range(int(item.h)):
count = 0
for j in range(int(item.w)):
if img[item.y + i, item.x + j] == 0:
count += 1
else:
continue
y_project.append(count)
# print("y_project(count)", y_project)
i = 1
while i < len(y_project):
if (y_project[i] == 0):
i += 1
continue
elif (y_project[i] > 0 and y_project[i + 1] > 0
and y_project[i + 2] > 0):
line = (i + i + 1 + i + 2) // 3
line_.append(line + item.y)
i += 3
elif (y_project[i] > 0 and y_project[i + 1] > 0):
line = (i + i + 1) // 2
line_.append(line + item.y)
i += 2
else:
line = i
line_.append(line + item.y)
i += 1
continue
staff.append(line_)
# print("line_axis", line_axis) #每行譜的五條線的最上面那條
# print("staff", staff) #每行譜的五條線
# >>
##### 第一行對x投影
x_range = [102] * (len(resul))
x_range[0] = 120
# print('ra_list',ra_list)
quarter_recs = []
half_recs = []
for x_range_index, x_range_ in enumerate(x_range):
x_project1 = []
for x in range(x_range_, 485):
count = 0
for y in range(staff[x_range_index][0] - 15,
staff[x_range_index][4] + 15):
if img[y, x] == 0:
count += 1
else:
continue
x_project1.append(count)
# <<音符的x範圍
note_xposition = []
one_note = []
next_to = False
for index, item in enumerate(x_project1):
if item > 8 and next_to == False: #找到第一個大於9的x
one_note.append(index)
next_to = True #觸發next_to等於True
elif item > 8 and next_to == True: #next_to等於True的情況下如果還是大於九則不做理會
continue
elif item < 8 and next_to == True: #next_to等於True的情況下如果小於九則存入one_note
one_note.append(index - 1)
if one_note[1] - one_note[
0] > 5: #one_note[0]是起始x，one_note[1]是結束的x，間距要超過5才會把它存入note_xposition
# print("index" ,index)
note_xposition.append(one_note)
one_note = []
next_to = False #next_to等於False
# print("note_xposition", note_xposition)
# print('xpo', time.time() - start_time)
# 音符的x範圍>>
# <<音符的y範圍
note_yposition = []
note_xpos_yproject = []
# for index__ in note_xposition:
# note_xpos_yproject = []
for r in range(len(note_xposition)):
for j in range(staff[x_range_index][0] - 15,
staff[x_range_index][4] + 15):
count = 0
for i in range(note_xposition[r][0] + x_range_,
note_xposition[r][1] + x_range_):
if img[j, i] == 0:
count += 1
else:
continue
note_xpos_yproject.append(count)
one_note_ = []
next_to_ = False
for index_, item in enumerate(note_xpos_yproject):
if item > 3 and next_to_ == False: #找到第一個大於3的y
one_note_.append(index_)
next_to_ = True #觸發next_to_等於True
elif item > 3 and next_to_ == True: #next_to_等於True的情況下如果還是大於3則不做理會
continue
elif item < 3 and next_to_ == True: #next_to_等於True的情況下如果小於3則存入one_note_
one_note_.append(index_ - 1)
if one_note_[1] - one_note_[
0] > 6: #one_note_[0]是起始y，one_noteY[1]是結束的y，間距要超過6才會把它存入note_xposition
note_yposition.append(one_note_)
one_note_ = []
next_to_ = False #next_to等於False
# print("note_xpos_yproject", note_xpos_yproject)
note_xpos_yproject = []
# print("note_yposition", note_yposition)
# 音符的y範圍>>
# fingers = []
# for i in range(len(note_xposition)):
# crop_img = img[staff[x_range_index][4]+15 : staff[x_range_index][4]+30, x_range[x_range_index] + note_xposition[i][0] : x_range[x_range_index] + note_xposition[i][1]]
# if i == 1:
# print("crop_img", crop_img)
# # 找finger1
# finger1_recs = locate_images(crop_img, finger1_imgs, finger1_lower, finger1_upper, finger1_thresh)
# # finger1_recs = finger1_recs[0]
# finger1_recs = merge_recs([j for i in finger1_recs for j in i], 0.5)
# finger1_recs_img = img.copy()
# if i == 1:
# print("finger1_recs", len(finger1_recs))
# for r in finger1_recs:
# r.draw(finger1_recs_img, (0, 0, 255), 2)
# cv2.imwrite('finger1_recs_img.png', finger1_recs_img)
# open_file('finger1_recs_img.png')
global recs
recs = []
for r in range(len(note_xposition)):
count = 0
for j in range(staff[x_range_index][0] - 15 + note_yposition[r][0],
staff[x_range_index][0] - 15 +
note_yposition[r][1]):
for i in range(note_xposition[r][0] + x_range_,
note_xposition[r][1] + x_range_):
if img[j, i] == 0:
count += 1
else:
continue
# print(count/((note_xposition[r][1]-note_xposition[r][0])*(note_yposition[r][1]-note_yposition[r][0])))
if (count /
((note_xposition[r][1] - note_xposition[r][0]) *
(note_yposition[r][1] - note_yposition[r][0])) > 0.64):
rec = Rectangle(
note_xposition[r][0] + x_range_,
staff[x_range_index][0] - 15 + note_yposition[r][0],
note_xposition[r][1] - note_xposition[r][0],
note_yposition[r][1] - note_yposition[r][0])
quarter_recs.append(rec)
recs.append(rec)
elif (count /
((note_xposition[r][1] - note_xposition[r][0]) *
(note_yposition[r][1] - note_yposition[r][0])) <= 0.64):
rec = Rectangle(
note_xposition[r][0] + x_range_,
staff[x_range_index][0] - 15 + note_yposition[r][0],
note_xposition[r][1] - note_xposition[r][0],
note_yposition[r][1] - note_yposition[r][0])
half_recs.append(rec)
recs.append(rec)
# print("quarter_recs", quarter_recs)
# print("half_recs", half_recs)
# print("quarter_recs", len(quarter_recs))
# print("half_recs", len(half_recs))
l = recs
# print("rec", rec)
with open("temp/output.txt", "wb") as fp: #Pickling
pickle.dump(l, fp)
# with open("test.txt", "rb") as fp: # Unpickling
# b = pickle.load(fp)
staff_boxes = [
Rectangle(x_range[r], staff[r][2] - 33, 485 - x_range[r], 68)
for r in range(len(staff))
]
# staff_boxes_img = img.copy()
# for r in staff_boxes:
# r.draw(staff_boxes_img, (0, 0, 255), 2)
# cv2.imwrite('staff_boxes_img.png', staff_boxes_img)
# open_file('staff_boxes_img.png')
# objects_img = staff_boxes_img
# 畫四分音符
# quarter_recs_img = img.copy()
# for r in quarter_recs:
# r.draw(quarter_recs_img, (0, 0, 255), 2)
# cv2.imwrite('quarter_recs_img.png', quarter_recs_img)
# open_file('quarter_recs_img.png')
# 畫二分音符
# half_recs_img = img.copy()
# for r in half_recs:
# r.draw(half_recs_img, (0, 0, 255), 2)
# cv2.imwrite('half_recs_img.png', half_recs_img)
# open_file('half_recs_img.png')
staff_notes = []
note_groups = []
for box in staff_boxes:
staff_sharps = []
staff_flats = []
quarter_notes = [
Note(r, "4,8", box, staff_sharps, staff_flats)
for r in quarter_recs
if abs(r.middle[1] - box.middle[1]) < box.h * 5.0 / 8.0
]
half_notes = [
Note(r, "2", box, staff_sharps, staff_flats) for r in half_recs
if abs(r.middle[1] - box.middle[1]) < box.h * 5.0 / 8.0
]
staff_notes = quarter_notes + half_notes
staff_notes.sort(key=lambda n: n.rec.x)
staffs = [r for r in staff_recs if r.overlap(box) > 0]
staffs.sort(key=lambda r: r.x)
note_color = (randint(0, 255), randint(0, 255), randint(0, 255))
note_group = []
i = 0
j = 0
while (i < len(staff_notes)):
if j < len(staffs):
if staff_notes[i].rec.x > staffs[j].x:
r = staffs[j]
j += 1
if len(note_group) > 0:
note_groups.append(note_group)
note_group = []
note_color = (randint(0,
255), randint(0,
255), randint(0, 255))
else:
note_group.append(staff_notes[i])
# staff_notes[i].rec.draww(img, note_color, 2)
i += 1
else:
note_group.append(staff_notes[i])
# staff_notes[i].rec.draww(img, note_color, 2)
i += 1
note_groups.append(note_group)
# for r in staff_boxes:
# r.draw(img, (0, 0, 255), 2)
# cv2.imwrite('res.png', img)
# open_file('res.png')
# for note_group in note_groups:
# print([ note.note + " " + note.sym for note in note_group])
midi = MIDIFile(1)
track = 0
time = 0
channel = 0
volume = 100
midi.addTrackName(track, time, "Track")
midi.addTempo(track, time, 60)
for note_group in note_groups:
duration = None
for note in note_group:
note_type = note.sym
if note_type == "1":
duration = 4
elif note_type == "2":
duration = 2
elif note_type == "4,8":
# duration = 1 if len(note_group) == 1 else 0.5
duration = 1
pitch = note.pitch
midi.addNote(track, channel, pitch, time, duration, volume)
time += duration
# And write it to disk.
binfile = open("temp/output.mid", 'wb')
midi.writeFile(binfile)
binfile.close()
cv2.imwrite('res.png', img)
open_file('res.png')
for note_group in note_groups:
print([ note.note + " " + note.sym for note in note_group])
# note를 미디 파일로 저장
midi = MIDIFile(1)
track = 0
time = 0
channel = 0
volume = 100
midi.addTrackName(track, time, "Track")
midi.addTempo(track, time, 140)
for note_group in note_groups:
duration = None
for note in note_group:
note_type = note.sym
if note_type == "1":
duration = 4
elif note_type == "2":
duration = 2
elif note_type == "4,8":
duration = 1 if len(note_group) == 1 else 0.5
pitch = note.pitch
midi.addNote(track,channel,pitch,time,duration,volume)
time += duration
# A sample program to create a single-track MIDI file, add a note, # and write to disk. ############################################################################ #Import the library from midiutil.MidiFile3 import MIDIFile import random # Create the MIDIFile Object MyMIDI = MIDIFile(2) # Add track name and tempo. The first argument to addTrackName and # addTempo is the time to write the event. track = 0 LHtime = 0 MyMIDI.addTrackName(track, LHtime, "Jazzzzzy Left Hand") MyMIDI.addTempo(track,LHtime, 160) # Creating second track track2 = 1 RHtime = 0 MyMIDI.addTrackName(track2, RHtime, "Jazzzzzy Right Hand") MyMIDI.addTempo(track,RHtime,160) # Add a note 'C'. addNote expects the following information: channel = 0 pitch = 60 duration = 2 volume = 100 # Create Randomness random.seed(1338, 2)
class MIDITime(object):
def __init__(self,
tempo=120,
outfile='miditime.mid',
seconds_per_year=5,
base_octave=5,
octave_range=1,
custom_epoch=None):
self.tempo = tempo
self.outfile = outfile
self.tracks = []
if custom_epoch: # Only necessary if you have data that starts before 1970 and DO NOT want to start your midi at the first sound.
self.epoch = custom_epoch
else:
self.epoch = datetime.datetime(1970, 1, 1)
self.seconds_per_year = seconds_per_year
self.base_octave = base_octave
self.octave_range = octave_range
self.note_chart = [["C"], ["C#", "Db"], ["D"], ["D#", "Eb"], ["E"],
["F"], ["F#", "Gb"], ["G"], ["G#", "Ab"], ["A"],
["A#", "Bb"], ["B"]]
def beat(self, numdays):
beats_per_second = self.tempo / 60.0
beats_per_datayear = self.seconds_per_year * beats_per_second
beats_per_dataday = beats_per_datayear / 365.25
return round(beats_per_dataday * numdays, 2)
def check_tz(self, input):
if input.tzinfo:
return input.tzinfo
else:
return None
# Match the compare date to the timezone of whatever your input date is, if the input datetime is timezone-aware
def normalize_datetime(self, input, compare_date):
# if input is date, make epoch a date
if type(input) is datetime.date:
return compare_date.date()
# # First, coerce to datetime in case it's a date
# if type(input) is datetime.date:
# input = datetime.datetime.combine(input, datetime.datetime.min.time())
# If tz data present, make epoch tz-aware
tz = self.check_tz(input)
if tz:
return tz.localize(compare_date)
else:
return compare_date
def days_since_epoch(self, input):
normalized_epoch = self.normalize_datetime(input, self.epoch)
return (input - normalized_epoch).total_seconds(
) / 60 / 60 / 24 # How many days, with fractions
def map_week_to_day(self, year, week_num, desired_day_num=None):
''' Helper for weekly data, so when you jump to a new year you don't have notes playing too close together. Basically returns the first Sunday, Monday, etc. in 0-indexed integer format that is in that week.
Usage: Once without a desired_day_num, then feed it a day_num in the loop
Example:
first_day = self.map_week_to_day(filtered_data[0]['Year'], filtered_data[0]['Week'])
for r in filtered_data:
# Convert the week to a date in that week
week_start_date = self.map_week_to_day(r['Year'], r['Week'], first_day.weekday())
# To get your date into an integer format, convert that date into the number of days since Jan. 1, 1970
days_since_epoch = self.mymidi.days_since_epoch(week_start_date)
'''
year_start = datetime.datetime(int(year), 1, 1).date()
year_start_day = year_start.weekday()
week_start_date = year_start + datetime.timedelta(weeks=1 *
(int(week_num) - 1))
week_start_day = week_start_date.weekday()
if desired_day_num and week_start_day < desired_day_num:
return week_start_date + datetime.timedelta(days=(desired_day_num -
week_start_day))
return week_start_date
def get_data_range(self, data_list, attribute_name, ignore_nulls=True):
data_list = list(
data_list
) # If the data is still a CSV object, once you loop through it you'll get rewind issues. So coercing to list.
if ignore_nulls:
minimum = min([
float(d[attribute_name]) for d in data_list
if d[attribute_name]
])
maximum = max([
float(d[attribute_name]) for d in data_list
if d[attribute_name]
])
else:
minimum = min([float(d[attribute_name]) for d in data_list])
maximum = max([float(d[attribute_name]) for d in data_list])
return [minimum, maximum]
def scale_to_note_classic(
self, scale_pct, mode
): # Only works in multi-octave mode if in C Major (i.e. all the notes are used. Should not be used in other keys, unless octave range is 1.)
full_mode = []
n = 0
while n < self.octave_range:
for m in mode:
current_octave = str(self.base_octave + (n * 1))
full_mode.append(m + current_octave)
n += 1
index = int(scale_pct * float(len(full_mode)))
if index >= len(full_mode):
index = len(full_mode) - 1
print(full_mode[index])
return full_mode[index]
def scale_to_note(
self, scale_pct, mode
): # Manually go through notes so it doesn't inaccurately jump an octave sometimes.
# First, write out a list of the possible notes for your octave range (i.e. all of the notes on the keyboard)
full_c_haystack = []
n = 0
while n < self.octave_range:
for note_group in self.note_chart:
out_group = []
for note in note_group:
current_octave = self.base_octave + (n * 1)
out_group.append(note + str(current_octave))
full_c_haystack.append(out_group)
n += 1
full_mode = []
n = 0
while n < self.octave_range:
for note in mode:
note_found = False
note_key = None
for groupkey, group in enumerate(full_c_haystack):
for gnote in group:
if gnote[:-1] == note:
full_mode.append(gnote)
note_found = True
note_key = groupkey
if note_found:
break
full_c_haystack = full_c_haystack[note_key:]
n += 1
# Now run through your specified mode and pick the exact notes in those octaves
index = int(scale_pct * float(len(full_mode)))
if index >= len(full_mode):
index = len(full_mode) - 1
return full_mode[index]
def note_to_midi_pitch(self, notename):
midinum = 0
letter = notename[:-1]
octave = notename[-1]
i = 0
for note in self.note_chart:
for form in note:
if letter == form:
midinum = i
break
i += 1
midinum += (int(octave)) * 12
return midinum
def linear_scale_pct(self, domain_min, domain_max, input, reverse=False):
domain_range = float(domain_max) - float(domain_min)
domain_pct = (input - domain_min) / domain_range
if reverse:
domain_pct = 1 - domain_pct
return domain_pct
def log_scale_pct(self,
domain_min,
domain_max,
input,
reverse=False,
direction='exponential'):
if direction == 'exponential': # E.G. earthquakes
min_log_domain = pow(10, domain_min)
max_log_domain = pow(10, domain_max)
domain_range = max_log_domain - min_log_domain
log_input = pow(10, input)
elif direction == 'log': # natural log scale
if domain_min > 0:
min_log_domain = log(domain_min)
else:
min_log_domain = log(
0.1
) # Technically this is not a true log scale. Someone smarter than me will have to figure this out.
if domain_max > 0:
max_log_domain = log(domain_max)
else:
max_log_domain = log(
0.1
) # Technically this is not a true log scale. Someone smarter than me will have to figure this out.
domain_range = max_log_domain - min_log_domain
log_input = log(input)
domain_pct = (log_input - min_log_domain) / domain_range
if reverse:
domain_pct = 1 - domain_pct
return domain_pct
def scale(self, range_min, range_max, input_pct):
scale_range = range_max - range_min
return range_min + (input_pct * scale_range)
def add_track(self, note_list):
self.tracks.append(note_list)
def add_note(self, track, channel, note):
time = note[0]
pitch = note[1]
velocity = note[2]
duration = note[3]
print(pitch, time, duration, velocity)
# Now add the note.
self.MIDIFile.addNote(track, channel, pitch, time, duration, velocity)
def save_midi(self):
# Create the MIDIFile Object with 1 track
self.MIDIFile = MIDIFile(len(self.tracks))
for i, note_list in enumerate(self.tracks):
# Tracks are numbered from zero. Times are measured in beats.
track = i
time = 0
# Add track name and tempo.
self.MIDIFile.addTrackName(track, time, "Track %s" % i)
self.MIDIFile.addTempo(track, time, self.tempo)
for n in note_list:
if len(n) == 2:
note = n[0]
channel = n[1]
else:
note = n
channel = 0
self.add_note(track, channel, note)
# And write it to disk.
binfile = open(self.outfile, 'wb')
self.MIDIFile.writeFile(binfile)
binfile.close()
