def create_midi2(prediction_output):
""" convert the output from the prediction to notes and create a midi file
from the notes """
offset = 0
output_notes = [instrument.Guitar()]
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
print(1)
# pattern is a chord
if ('.' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('.')
notes = []
print(2)
for current_note in notes_in_chord:
print(3)
new_note = note.Note(int(current_note))
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(instrument.Guitar())
output_notes.append(new_chord)
# pattern is a note
else:
new_note = note.Note(pattern)
new_note.offset = offset
output_notes.append(instrument.Bass())
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += 0.5
midi_stream = stream.Stream(output_notes)
print('Saving Output file as midi....')
midi_stream.write('midi', fp='test_output6.mid')
def predict():
gen_seq = []
start = np.random.randint(len(network_input) - 1)
pattern = network_input[start]
for i in range(100):
ans = resultModel(pattern, model, notes)
gen_seq.append(label_to_element[ans])
pattern.append(ans)
pattern = pattern[1:]
offset = 0
output_notes = []
for pattern in gen_seq:
if ('+' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('+')
temp_notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
temp_notes.append(new_note)
new_chord = chord.Chord(temp_notes)
new_chord.offset = offset
output_notes.append(new_chord)
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
if offset < 7:
offset += 1.0
elif offset > 47:
offset += 1.0
else:
offset += 0.5
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi',
fp=os.path.join(BASE_DIR, "media", "music",
"output.mid"))
def create_music(prediction):
"""
用神经网络'预测'的音乐数据来生成 MIDI 文件，再转成 MP3 文件
"""
offset = 0 # 偏移
output_notes = []
# 生成 Note（音符）或 Chord（和弦）对象
for data in prediction:
# 是 Chord。格式例如： 4.15.7
if ('.' in data) or data.isdigit():
notes_in_chord = data.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano() # 乐器用钢琴 (piano)
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
# 是 Note
else:
new_note = note.Note(data)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# 每次迭代都将偏移增加，这样才不会交叠覆盖
offset += 0.5
# 创建音乐流（Stream）
midi_stream = stream.Stream(output_notes)
# 写入 MIDI 文件
midi_stream.write('midi', fp='output.mid')
# 将生成的 MIDI 文件转换成 MP3
convert_midi_to_mp3()
def create_midi(prediction_output, i):
""" convert the output from the prediction to notes and create a midi file
from the notes """
offset = 0
output_notes = []
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
# pattern is a chord
if (',' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split(',')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
duration = 0.5
# pattern is a note
else:
#print(pattern)
note2 = pattern.split(' ')[0]
#print(note2)
duration = convert_to_float(pattern.split(' ')[1])
#print(duration)
new_note = note.Note(note2)
new_note.offset = offset
new_note.quarterLength = duration
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += duration
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp="test_output_FF_Normal" + str(i) + ".mid")
def create_midi(prediction_output):
""" convert the output from the prediction to notes and create a midi file
from the notes """
offset = 0
output_notes = []
n = ["C","C#","D","E-","E","F","F#","G","G#","A","B-","B"]
pitchnames = [note.Note(no + str(octave)).nameWithOctave for octave in range(8) for no in n ]
pitchnames.append("C8")
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
# pattern is a chord
if numNote(pattern) > 1:
notes = []
for pp in pattern:
d = max(pp)
if d == 0:
break
new_note = note.Note(pitchnames[pp.index(d)])
new_note.storedInstrument = instrument.Piano()
#new_note.duration.quarterLength = d
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
#offset += d
else:
d = max(pattern[0])
new_note = note.Note(pitchnames[pattern[0].index(d)])
new_note.offset = offset
new_note.duration.quarterLength = d
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
#offset += d
offset += 0.5
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp='test_output.mp3')
def create_midi(pitches, durations, filename):
offset = 0
output_notes = []
# create note and chord objects based on the values generated by the model
for pitch, duration in zip(pitches, durations):
# pattern is a chord
if ('.' in pitch):
notes_in_chord = pitch.split('.')
notes = []
for name in notes_in_chord:
new_note = note.Note(name)
# new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
new_chord.duration.type = duration
output_notes.append(new_chord)
offset += new_chord.duration.quarterLength
# pattern is a rest
elif ('rest' in pitch):
new_rest = note.Rest()
# new_rest.storedInstrument = instrument.Piano()
new_rest.offset = offset
new_rest.duration.type = duration
output_notes.append(new_rest)
offset += new_rest.duration.quarterLength
# pattern is a note
else:
new_note = note.Note(pitch)
# new_note.storedInstrument = instrument.Piano()
new_note.offset = offset
new_note.duration.type = duration
output_notes.append(new_note)
offset += new_note.duration.quarterLength
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp=filename)
def create_midi(prediction_output, filename):
""" convert the output from the prediction to notes and create a midi file
from the notes """
offset = 0
output_notes = []
# create note and chord objects based on the values generated by the model
for item in prediction_output:
# pattern = item[0]
pattern = item
# pattern is a chord
if ('.' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
# pattern is a note
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += 0.5
midi_stream = stream.Stream(output_notes)
# midi_stream.show('text')
# uncomment to open midi in MUSESCORE
# midi_stream.show()
midi_stream.write('midi', fp='{}.mid'.format(filename))
print("Midi file saved.")
def gen_output_notes(prediction_output,off_set):
offset=0 #Time
output_notes=[]
for pattern in prediction_output:
# if pattern is a chord
if('+' in pattern or pattern.isdigit()):
notes_in_chord=pattern.split("+")
temp_notes=[]
for current_note in notes_in_chord:
new_note=note.Note(int(current_note)) # create Note Object
new_note.storedInstrument=instrument.Piano()
temp_notes.append(new_note)
new_chord=chord.Chord(temp_notes) # create a chord object from list of notes
new_chord.offset=offset
output_notes.append(new_chord)
#if pattern is a note
else:
new_note=note.Note(pattern)
new_note.offset=offset
new_note.storedInstrument=instrument.Piano()
output_notes.append(new_note)
offset+=off_set
return output_notes
def listNormalOrders(self):
'''
List the normal orders for all 12 transpositions
>>> pList = [pitch.Pitch('C4'), pitch.Pitch('E4'), pitch.Pitch('G#4')]
>>> tc = analysis.transposition.TranspositionChecker(pList)
>>> tc.listNormalOrders()
[[0, 4, 8], [1, 5, 9], [2, 6, 10], [3, 7, 11],
[0, 4, 8], [1, 5, 9], [2, 6, 10], [3, 7, 11],
[0, 4, 8], [1, 5, 9], [2, 6, 10], [3, 7, 11]]
'''
if self.allTranspositions is None:
self.getTranspositions()
allTranspositions = self.allTranspositions
allNormalOrders = []
for thisTransposition in allTranspositions:
# pass
c = chord.Chord(thisTransposition)
thisNormalOrder = c.normalOrder
allNormalOrders.append(thisNormalOrder)
self.allNormalOrders = allNormalOrders
return allNormalOrders
def drop2_test():
tonic = 'C'
sc = scale.MajorScale(tonic)
root = sc.pitchFromDegree(1)
tonic_triad = chord.Chord([root, root.transpose(7), root.transpose(16)])
cycle = generate_cycle_pair(sc,
tonic_triad,
"3/6",
voicing_type=Voicing.Drop2_A_form)
cycle.show()
cycle = generate_cycle_pair(sc,
tonic_triad,
"4/5",
voicing_type=Voicing.Drop2_A_form)
cycle.show()
cycle = generate_cycle_pair(sc,
tonic_triad,
"2/7",
voicing_type=Voicing.Drop2_A_form)
cycle.show()
def testOrnamentA(self):
from music21 import expressions
from music21 import chord
s = stream.Stream()
s.repeatAppend(note.Note(), 4)
s.repeatAppend(chord.Chord(['c4', 'g5']), 4)
#s.insert(4, expressions.Trill())
s.notes[3].expressions.append(expressions.Trill())
s.notes[2].expressions.append(expressions.Mordent())
s.notes[1].expressions.append(expressions.InvertedMordent())
s.notes[6].expressions.append(expressions.Trill())
s.notes[7].expressions.append(expressions.Mordent())
s.notes[5].expressions.append(expressions.InvertedMordent())
raw = fromMusic21Object(s)
#s.show()
self.assertEqual(raw.count('<trill-mark'), 2)
self.assertEqual(raw.count('<ornaments>'), 6)
self.assertEqual(raw.count('<inverted-mordent/>'), 2)
self.assertEqual(raw.count('<mordent/>'), 2)
def testNoteColorA(self):
from music21 import chord
n1 = note.Note()
n2 = note.Note()
n2.color = '#ff1111'
n3 = note.Note()
n3.color = '#1111ff'
r1 = note.Rest()
r1.color = '#11ff11'
c1 = chord.Chord(['c2', 'd3', 'e4'])
c1.color = '#ff0000'
s = stream.Stream()
s.append([n1, n2, n3, r1, c1])
#s.show()
raw = fromMusic21Object(s)
# three color indications
self.assertEqual(
raw.count("color="),
8) #exports to notehead AND note, so increased from 6 to 8
# color set at note level only for rest, so only 1
self.assertEqual(raw.count('note color="#11ff11"'), 1)
def ex1_revised(show=True, *arguments, **keywords):
if 'op133' in keywords.keys():
beethovenScore = keywords['op133']
else:
beethovenScore = corpus.parse('opus133.xml') # load a MusicXML file
violin2 = beethovenScore[1] # most programming languages start counting from 0,
# so part 0 = violin 1, part 1 = violin 2, etc.
display = stream.Stream() # an empty container for filling with found notes
for thisMeasure in violin2.getElementsByClass('Measure'):
notes = thisMeasure.findConsecutiveNotes(skipUnisons=True,
skipChords=True,
skipOctaves=True,
skipRests=True,
noNone=True )
pitches = [n.pitch for n in notes]
for i in range(len(pitches) - 3):
testChord = chord.Chord(pitches[i:i+4])
testChord.duration.type = "whole"
if testChord.isDominantSeventh() is True:
# since a chord was found in this measure,
# append the found pitches in closed position
testChord.lyric = "m. " + str(thisMeasure.number)
emptyMeasure = stream.Measure()
emptyMeasure.append(testChord.closedPosition())
display.append(emptyMeasure)
# append the whole measure as well, tagging the first note of the measure with an
# ordered list of all the pitch classes used in the measure.
pcGroup = [p.pitchClass for p in thisMeasure.pitches]
firstNote = thisMeasure.getElementsByClass(note.Note)[0]
firstNote.lyric = str(sorted(set(pcGroup)))
thisMeasure.setRightBarline("double")
display.append(thisMeasure)
if show:
display.show('musicxml')
def create_midi(prediction_output):
""" convert the output from the prediction to notes and create a midi file
from the notes """
offset = 0
output_notes = []
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
# pattern is a chord
if ('.' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
# pattern is a note
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += 0.5
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp=homeDir + 'test_output.mid')
# create sheetmusic
sheetmusic = stream.Stream(output_notes)
sheetmusic.show()
print("20_generate.py execute succesfully")
def create_midi(prediction_output):
offset = 0
output_notes = []
print(prediction_output)
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
# pattern is a chord
if ('.' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
elif pattern == 'rest':
new_note = note.Rest()
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# pattern is a note
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += 0.25
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp='test_output_random.mid')
def create_music_objects(model_output):
song_offset = 0
music_objects = [] # a list of music objects; rest, chord or note
# split the output of the model on spaces and remove spaces
music_list = model_output.split(' ')
music_list = [a for a in music_list if a != '' and a != ' ']
# create note and chord objects based on the values generated by the model
for music_element in music_list:
# music element is a rest
if 'rest' in music_element:
new_rest = note.Rest()
new_rest.offset = song_offset
music_objects.append(new_rest)
# music element is a chord
elif '|' in music_element:
notes_in_chord = music_element.split('|')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(current_note)
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = song_offset
music_objects.append(new_chord)
# music element is a note
else:
new_note = note.Note(music_element)
new_note.offset = song_offset
new_note.storedInstrument = instrument.Piano()
music_objects.append(new_note)
# increase offset each iteration so that notes do not stack
song_offset += 0.5
return music_objects
def create_midipart_with_durations(prediction_output,
target_instrument=instrument.Piano()):
offset = 0
output_notes = []
for i in range(len(prediction_output)):
pattern = prediction_output[i]
splitpattern = pattern.split(";")
pattern = splitpattern[0]
duration = get_number_from_duration(splitpattern[1])
if ('chord' in pattern):
notes = []
pattern = get_notes_from_chord(pattern)
patternpitches = pattern.split(',')
for current_note in patternpitches:
new_note = note.Note(current_note)
new_note.storedInstrument = target_instrument
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
elif ('rest' in pattern):
new_rest = note.Rest(pattern)
new_rest.offset = offset
new_rest.storedInstrument = target_instrument
output_notes.append(new_rest)
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = target_instrument
output_notes.append(new_note)
offset += convert_to_float(duration)
midipart = stream.Part(output_notes)
return midipart
def test_Ch6_basic_II_A(self, *arguments, **keywords):
'''p. 55
Write the specified melodic interval above the given note.
'''
# combines 1 and 2
pitches1 = ['e-4', 'f#4', 'a-4', 'd4', 'f4']
intervals1 = ['M6', 'p5', 'M3', 'M7', 'P4']
pitches2 = ['c#4', 'f3', 'a3', 'b-3', 'e-3']
intervals2 = ['-M6', '-p5', '-M7', '-M2', '-P4']
pitches = pitches1 + pitches2
intervals = intervals1 + intervals2
s = stream.Stream()
for i, p in enumerate(pitches):
if i == 0:
s.append(clef.TrebleClef())
if i == len(pitches1):
s.append(clef.BassClef())
p = pitch.Pitch(p) # convert string to obj
iObj = interval.Interval(intervals[i])
c = chord.Chord([p, p.transpose(iObj)], type='whole')
s.append(c)
if 'show' in keywords.keys() and keywords['show']:
s.show()
match = []
for c in s.getElementsByClass('Chord'):
# append second pitch as a string
match.append(str(c.pitches[1]))
self.assertEqual(match, [
'C5', 'C#5', 'C5', 'C#5', 'B-4', 'E3', 'B-2', 'B-2', 'A-3', 'B-2'
])
def testTrillExtensionA(self):
'''Test basic wave line creation and output, as well as passing
objects through make measure calls.
'''
from music21 import stream, note, chord, expressions
from music21.musicxml import m21ToXml
s = stream.Stream()
s.repeatAppend(note.Note(), 12)
n1 = s.notes[0]
n2 = s.notes[-1]
sp1 = expressions.TrillExtension(n1, n2)
s.append(sp1)
raw = m21ToXml.GeneralObjectExporter().parse(s)
self.assertEqual(raw.count(b'wavy-line'), 2)
s = stream.Stream()
s.repeatAppend(chord.Chord(['c-3', 'g4']), 12)
n1 = s.notes[0]
n2 = s.notes[-1]
sp1 = expressions.TrillExtension(n1, n2)
s.append(sp1)
raw = m21ToXml.GeneralObjectExporter().parse(s)
#s.show()
self.assertEqual(raw.count(b'wavy-line'), 2)
def getElement(dictionary):
el = dictionary['element']
ch = chord.Chord()
sil = note.Rest()
nota = note.Note()
complexDuration = duration.Duration()
complexDuration.quarterLength = 2.25
if type(el) == type(ch):
ordered_chord = el.sortAscending()
el = ordered_chord[-1]
if el.duration.type == complexDuration.type:
print("\n---split-chord---\n")
return [duration for duration in el.splitAtDurations()]
return [el]
if type(el) == type(nota):
if el.duration.type == complexDuration.type:
print("\n---split-note---\n")
return [duration for duration in el.splitAtDurations()]
return [el]
if type(el) == type(sil):
if el.duration.type == complexDuration.type:
print("\n---split-rest---\n")
return [duration for duration in el.splitAtDurations()]
return [el]
def create_pdf(prediction_output, pdf_filepath):
""" convert the output from the prediction to notes and create a midi file
from the notes """
print("IN CREATE_PDF")
offset = 0
output_notes = []
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
# pattern is a chord
if ('.' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
# pattern is a note
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += 0.5
midi_stream = stream.Stream(output_notes)
try:
midi_stream.write('lily.pdf', fp=pdf_filepath)
except:
print("Lilypond failed to print pdf.")
def create_midi_with_durations(prediction_output,
output_durations,
target_instrument=instrument.Piano(),
filename='test_output.mid'):
offset = 0
output_notes = []
for i in range(len(prediction_output)):
pattern = prediction_output[i]
duration = get_number_from_duration(output_durations[i])
if ('chord' in pattern):
notes = []
pattern = get_notes_from_chord(pattern)
patternpitches = pattern.split(',')
for current_note in patternpitches:
new_note = note.Note(current_note)
new_note.storedInstrument = target_instrument
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
elif ('rest' in pattern):
new_rest = note.Rest(pattern)
new_rest.offset = offset
new_rest.storedInstrument = target_instrument
output_notes.append(new_rest)
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = target_instrument
output_notes.append(new_note)
offset += convert_to_float(duration)
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp=filename)
def create_midi(prediction_output):
""" convert the output from the prediction to notes and create a midi file
from the notes """
offset = 0
output_notes = []
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
# pattern is a chord
if ('.' in pattern[0]) or pattern[0].isdigit():
notes_in_chord = pattern[0].split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.duration.quarterLength = pattern[1]
new_chord.offset = offset
output_notes.append(new_chord)
# pattern is a note
else:
pitch = pattern[0]
duration = pattern[1]
new_note = note.Note(pitch)
new_note.duration.quarterLength = float(duration)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += 0.5
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp='test_output.mid')
def create_midi(prediction_output):
print('Convert the output from the prediction to a MIDI file',
sep=' ',
end='\n',
file=sys.stdout,
flush=False)
offset = 0
output_notes = []
#create note and chord objects based on the values generated by the model
for pattern in prediction_output:
#pattern is chords
print(pattern, sep=' ', end='\n\n', file=sys.stdout, flush=False)
patt = str(pattern)
if ('.' in patt) or patt.isdigit():
notes_in_chord = patt.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
#pattern is a note
else:
new_note = note.Note(pitchName=pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
#increase offset each iteration so that notes do not stack
offset += 0.5
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp='test_output.mid')
def createMidi(prediction_output):
""" convert the output from the prediction to notes and create a midi file
from the notes """
offset = 0
output_notes = []
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
# pattern is a chord
if ('.' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
# pattern is a note
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += 0.5
midi_stream = stream.Stream(output_notes)
song_name = str(time.time()) + '.mid'
midi_stream.write('midi', fp='currentSongs/' + song_name)
return 'currentSongs/' + song_name
def create_midi(prediction_output):
offset = 0
output_notes = []
for pattern in prediction_output:
if ('.' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
offset += 0.5
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp='test_output.mid')
def create_midi(note_list, path):
""" convert the output from the prediction to notes and create a midi file from the notes """
offset = 0
output_notes = []
# create note and chord objects based on the values generated by the model
for pattern in note_list:
# pattern is a Rest
if pattern == 'Rest':
new_note = note.Rest()
new_note.offset = offset
output_notes.append(new_note)
# pattern is a chord
elif ('.' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
# pattern is a note
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += 0.5
midi_stream = stream.Stream(output_notes)
midi_stream.write('midi', fp=path)
def convert_notes_to_midi(prediction_output, filename):
"""
convert the output from the prediction to notes and create a midi file
from the notes
"""
offset = 0
output_notes = list()
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
# pattern is a chord
if ("." in pattern) or pattern.isdigit():
notes_in_chord = pattern.split(".")
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
elif "rest" in pattern:
new_rest = note.Rest(pattern)
new_rest.offset = offset
new_rest.storedInstrument = instrument.Piano()
output_notes.append(new_rest)
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset so notes do not stack
offset += 0.5
midi_stream = stream.Stream(output_notes)
midi_stream.write("midi", filename)
def create_midi(prediction_output):
""" convert the output from the prediction to notes and create a midi file
from the notes """
offset = 0
output_notes = []
print('Generating midi...')
# create note and chord objects based on the values generated by the model
for pattern in prediction_output:
# pattern is a chord
if ('.' in pattern) or pattern.isdigit():
notes_in_chord = pattern.split('.')
notes = []
for current_note in notes_in_chord:
new_note = note.Note(int(current_note))
new_note.storedInstrument = instrument.Piano()
notes.append(new_note)
new_chord = chord.Chord(notes)
new_chord.offset = offset
output_notes.append(new_chord)
# pattern is a note
else:
new_note = note.Note(pattern)
new_note.offset = offset
new_note.storedInstrument = instrument.Piano()
output_notes.append(new_note)
# increase offset each iteration so that notes do not stack
offset += 0.5
print(output_notes)
midi_stream = stream.Stream(output_notes)
print('Writing midi file to disk...')
midi_stream.write('midi', fp='assets/test_output.mid')
print('Done.')
def get_harmonic_reduction(self):
reduction = []
temp_midi = stream.Score()
temp_midi.insert(0, self.chord_progression)
max_notes_per_chord = 4
for measure in temp_midi.measures(0, None): # None = get all measures.
if type(measure) != stream.Measure:
continue
# count all notes length in each measure,
count_dict = note_count(measure)
sorted_items = sorted(count_dict.items(), key=lambda x: x[1])
sorted_notes = [
item[0] for item in sorted_items[-max_notes_per_chord:]
]
measure_chord = chord.Chord(sorted_notes)
reduction.append(measure_chord)
self.harmony = reduction
return reduction