def testSquashCenterOctaves(self):
# Move up an octave.
events = [
12 * 4, NO_EVENT, 12 * 4 + 2, NOTE_OFF, 12 * 4 + 4, NO_EVENT,
12 * 4 + 5, 12 * 5 + 2, 12 * 4 - 1, NOTE_OFF
]
melody = melodies_lib.Melody(events)
melody.squash(min_note=12 * 4, max_note=12 * 7, transpose_to_key=0)
expected = [
12 * 5, NO_EVENT, 12 * 5 + 2, NOTE_OFF, 12 * 5 + 4, NO_EVENT,
12 * 5 + 5, 12 * 6 + 2, 12 * 5 - 1, NOTE_OFF
]
self.assertEqual(expected, list(melody))
# Move down an octave.
events = [
12 * 6, NO_EVENT, 12 * 6 + 2, NOTE_OFF, 12 * 6 + 4, NO_EVENT,
12 * 6 + 5, 12 * 7 + 2, 12 * 6 - 1, NOTE_OFF
]
melody = melodies_lib.Melody(events)
melody.squash(min_note=12 * 4, max_note=12 * 7, transpose_to_key=0)
expected = [
12 * 5, NO_EVENT, 12 * 5 + 2, NOTE_OFF, 12 * 5 + 4, NO_EVENT,
12 * 5 + 5, 12 * 6 + 2, 12 * 5 - 1, NOTE_OFF
]
self.assertEqual(expected, list(melody))
def testSetLength(self):
events = [60]
melody = melodies_lib.Melody(events, start_step=9)
melody.set_length(5)
self.assertListEqual([60, NOTE_OFF, NO_EVENT, NO_EVENT, NO_EVENT],
list(melody))
self.assertEqual(9, melody.start_step)
self.assertEqual(14, melody.end_step)
melody = melodies_lib.Melody(events, start_step=9)
melody.set_length(5, from_left=True)
self.assertListEqual([NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT, 60],
list(melody))
self.assertEqual(5, melody.start_step)
self.assertEqual(10, melody.end_step)
events = [60, NO_EVENT, NO_EVENT, NOTE_OFF]
melody = melodies_lib.Melody(events)
melody.set_length(3)
self.assertListEqual([60, NO_EVENT, NO_EVENT], list(melody))
self.assertEqual(0, melody.start_step)
self.assertEqual(3, melody.end_step)
melody = melodies_lib.Melody(events)
melody.set_length(3, from_left=True)
self.assertListEqual([NO_EVENT, NO_EVENT, NOTE_OFF], list(melody))
self.assertEqual(1, melody.start_step)
self.assertEqual(4, melody.end_step)
def testTranspose(self):
# Melody transposed down 5 half steps. 2 octave range.
events = [12 * 5 + 4, NO_EVENT, 12 * 5 + 5, NOTE_OFF, 12 * 6, NO_EVENT]
melody = melodies_lib.Melody(events)
melody.transpose(transpose_amount=-5, min_note=12 * 5, max_note=12 * 7)
expected = [
12 * 5 + 11, NO_EVENT, 12 * 5, NOTE_OFF, 12 * 5 + 7, NO_EVENT
]
self.assertEqual(expected, list(melody))
# Melody transposed up 19 half steps. 2 octave range.
events = [12 * 5 + 4, NO_EVENT, 12 * 5 + 5, NOTE_OFF, 12 * 6, NO_EVENT]
melody = melodies_lib.Melody(events)
melody.transpose(transpose_amount=19, min_note=12 * 5, max_note=12 * 7)
expected = [
12 * 6 + 11, NO_EVENT, 12 * 6, NOTE_OFF, 12 * 6 + 7, NO_EVENT
]
self.assertEqual(expected, list(melody))
# Melody transposed zero half steps. 1 octave range.
events = [12 * 4 + 11, 12 * 5, 12 * 5 + 11, NOTE_OFF, 12 * 6, NO_EVENT]
melody = melodies_lib.Melody(events)
melody.transpose(transpose_amount=0, min_note=12 * 5, max_note=12 * 6)
expected = [
12 * 5 + 11, 12 * 5, 12 * 5 + 11, NOTE_OFF, 12 * 5, NO_EVENT
]
self.assertEqual(expected, list(melody))
def testEventListChordsWithMelodies(self):
note_sequence = music_pb2.NoteSequence(ticks_per_quarter=220)
note_sequence.tempos.add(qpm=60.0)
testing_lib.add_chords_to_sequence(note_sequence,
[('N.C.', 0), ('C', 2), ('G7', 6)])
note_sequence.total_time = 8.0
melodies = [
melodies_lib.Melody([60, -2, -2, -1],
start_step=0,
steps_per_quarter=1,
steps_per_bar=4),
melodies_lib.Melody([62, -2, -2, -1],
start_step=4,
steps_per_quarter=1,
steps_per_bar=4),
]
quantized_sequence = sequences_lib.quantize_note_sequence(
note_sequence, steps_per_quarter=1)
chords = chords_lib.event_list_chords(quantized_sequence, melodies)
expected_chords = [[NO_CHORD, NO_CHORD, 'C', 'C'],
['C', 'C', 'G7', 'G7']]
self.assertEqual(expected_chords, chords)
def testMelodyExtractor(self):
note_sequence = common_testing_lib.parse_test_proto(
music_pb2.NoteSequence, """
time_signatures: {
numerator: 4
denominator: 4}
tempos: {
qpm: 60}""")
music_testing_lib.add_track_to_sequence(note_sequence,
0, [(12, 100, 2, 4),
(11, 1, 6, 7)])
music_testing_lib.add_track_to_sequence(note_sequence,
1, [(12, 127, 2, 4),
(14, 50, 6, 8)])
quantized_sequence = sequences_lib.quantize_note_sequence(
note_sequence, steps_per_quarter=1)
expected_events = [[
NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 11
], [
NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 14, NO_EVENT
]]
expected_melodies = []
for events_list in expected_events:
melody = melodies_lib.Melody(events_list,
steps_per_quarter=1,
steps_per_bar=4)
expected_melodies.append(melody)
unit = melody_pipelines.MelodyExtractor(min_bars=1,
min_unique_pitches=1,
gap_bars=1)
self._unit_transform_test(unit, quantized_sequence, expected_melodies)
def testToSequence(self):
# Sequence produced from lead sheet should contain notes from melody
# sequence and chords from chord sequence as text annotations.
melody = melodies_lib.Melody(
[NO_EVENT, 1, NO_EVENT, NOTE_OFF, NO_EVENT, 2, 3, NOTE_OFF, NO_EVENT])
chords = chords_lib.ChordProgression(
[NO_CHORD, 'A', 'A', 'C#m', 'C#m', 'D', 'B', 'B', 'B'])
lead_sheet = lead_sheets_lib.LeadSheet(melody, chords)
sequence = lead_sheet.to_sequence(
velocity=10,
instrument=1,
sequence_start_time=2,
qpm=60.0)
melody_sequence = melody.to_sequence(
velocity=10,
instrument=1,
sequence_start_time=2,
qpm=60.0)
chords_sequence = chords.to_sequence(
sequence_start_time=2,
qpm=60.0)
self.assertEqual(melody_sequence.ticks_per_quarter,
sequence.ticks_per_quarter)
self.assertProtoEquals(melody_sequence.tempos, sequence.tempos)
self.assertEqual(melody_sequence.total_time, sequence.total_time)
self.assertProtoEquals(melody_sequence.notes, sequence.notes)
self.assertProtoEquals(chords_sequence.text_annotations,
sequence.text_annotations)
def testFromQuantizedNoteSequenceNotCommonTimeSig(self):
self.note_sequence.time_signatures[0].numerator = 7
self.note_sequence.time_signatures[0].denominator = 8
testing_lib.add_track_to_sequence(self.note_sequence, 0,
[(12, 100, 0.01, 10.0),
(11, 55, 0.22, 0.50),
(40, 45, 2.50, 3.50),
(55, 120, 4.0, 4.01),
(52, 99, 4.75, 5.0)])
quantized_sequence = sequences_lib.quantize_note_sequence(
self.note_sequence, self.steps_per_quarter)
melody = melodies_lib.Melody()
melody.from_quantized_sequence(quantized_sequence,
search_start_step=0,
instrument=0)
expected = ([
12, 11, NOTE_OFF, NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT,
NO_EVENT, NO_EVENT, 40, NO_EVENT, NO_EVENT, NO_EVENT, NOTE_OFF,
NO_EVENT, 55, NOTE_OFF, NO_EVENT, 52
])
self.assertEqual(expected, list(melody))
self.assertEqual(14, melody.steps_per_bar)
def testGetKeyHistogram(self):
# One C.
events = [NO_EVENT, 12 * 5, NOTE_OFF]
melody = melodies_lib.Melody(events)
expected = [1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0]
self.assertListEqual(expected, list(melody.get_major_key_histogram()))
# One C and one C#.
events = [NO_EVENT, 12 * 5, NOTE_OFF, 12 * 7 + 1, NOTE_OFF]
melody = melodies_lib.Melody(events)
expected = [1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1]
self.assertListEqual(expected, list(melody.get_major_key_histogram()))
# One C, one C#, and one D.
events = [NO_EVENT, 12 * 5, NOTE_OFF, 12 * 7 + 1, NO_EVENT, 12 * 9 + 2]
melody = melodies_lib.Melody(events)
expected = [2, 2, 2, 2, 1, 2, 1, 2, 2, 2, 2, 1]
self.assertListEqual(expected, list(melody.get_major_key_histogram()))
def testEventListKeysWithMelodies(self):
note_sequence = music_pb2.NoteSequence(ticks_per_quarter=220)
note_sequence.tempos.add(qpm=60.0)
testing_lib.add_key_signatures_to_sequence(note_sequence, [(6, 2), (0, 6)])
note_sequence.total_time = 8.0
melodies = [
melodies_lib.Melody([60, -2, -2, -1],
start_step=0, steps_per_quarter=1, steps_per_bar=4),
melodies_lib.Melody([62, -2, -2, -1],
start_step=4, steps_per_quarter=1, steps_per_bar=4),
]
keys = chords_lib.event_list_keys(
note_sequence, melodies, steps_per_second=1)
expected_keys = [[6, 6, 6, 6], [6, 6, 0, 0]]
self.assertEqual(expected_keys, keys)
def testToSequenceEmpty(self):
melody = melodies_lib.Melody()
sequence = melody.to_sequence(velocity=10,
instrument=1,
sequence_start_time=2,
qpm=60.0)
self.assertProtoEquals(
'ticks_per_quarter: 220 '
'tempos < qpm: 60.0 > ', sequence)
def testGetInputsBatch(self):
events1 = [100, 100, 107, 111, NO_EVENT, 99, 112, NOTE_OFF, NO_EVENT]
melody1 = melodies_lib.Melody(events1)
events2 = [9, 10, 12, 14, 15, 17, 19, 21, 22]
melody2 = melodies_lib.Melody(events2)
melody1.squash(
self.min_note,
self.max_note,
self.transpose_to_key)
melody2.squash(
self.min_note,
self.max_note,
self.transpose_to_key)
melodies = [melody1, melody2]
expected_inputs1 = [
[0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0],
[1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0],
[0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]]
expected_inputs2 = [
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0],
[0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0],
[0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]]
expected_full_length_inputs_batch = [expected_inputs1, expected_inputs2]
expected_last_event_inputs_batch = [expected_inputs1[-1:],
expected_inputs2[-1:]]
self.assertListEqual(
expected_full_length_inputs_batch,
self.med.get_inputs_batch(melodies, True))
self.assertListEqual(
expected_last_event_inputs_batch,
self.med.get_inputs_batch(melodies))
def testGetNoteHistogram(self):
events = [
NO_EVENT, NOTE_OFF, 12 * 2 + 1, 12 * 3, 12 * 5 + 11, 12 * 6 + 3,
12 * 4 + 11
]
melody = melodies_lib.Melody(events)
expected = [1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2]
self.assertEqual(expected, list(melody.get_note_histogram()))
events = [
0, 1, NO_EVENT, NOTE_OFF, 12 * 2 + 1, 12 * 3, 12 * 6 + 3,
12 * 5 + 11, NO_EVENT, 12 * 4 + 11, 12 * 7 + 1
]
melody = melodies_lib.Melody(events)
expected = [2, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2]
self.assertEqual(expected, list(melody.get_note_histogram()))
melody = melodies_lib.Melody()
expected = [0] * 12
self.assertEqual(expected, list(melody.get_note_histogram()))
def testExtendMelodies(self):
melody1 = melodies_lib.Melody([60])
melody2 = melodies_lib.Melody([60])
melody3 = melodies_lib.Melody([60])
melody4 = melodies_lib.Melody([60])
melodies = [melody1, melody2, melody3, melody4]
softmax = [[
[0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
], [
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0]
], [
[1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
], [
[0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
]]
self.med.extend_event_sequences(melodies, softmax)
self.assertListEqual(list(melody1), [60, 60])
self.assertListEqual(list(melody2), [60, 71])
self.assertListEqual(list(melody3), [60, NO_EVENT])
self.assertListEqual(list(melody4), [60, NOTE_OFF])
def testFromNotesStepsPerBar(self):
self.note_sequence.time_signatures[0].numerator = 7
self.note_sequence.time_signatures[0].denominator = 8
quantized_sequence = sequences_lib.quantize_note_sequence(
self.note_sequence, steps_per_quarter=12)
melody = melodies_lib.Melody()
melody.from_quantized_sequence(quantized_sequence,
search_start_step=0,
instrument=0,
ignore_polyphonic_notes=False)
self.assertEqual(42, melody.steps_per_bar)
def testSquashMaxNote(self):
events = [
12 * 5, 12 * 5 + 2, 12 * 5 + 4, 12 * 5 + 5, 12 * 5 + 11, 12 * 6,
12 * 6 + 1
]
melody = melodies_lib.Melody(events)
melody.squash(min_note=12 * 5, max_note=12 * 6, transpose_to_key=0)
expected = [
12 * 5, 12 * 5 + 2, 12 * 5 + 4, 12 * 5 + 5, 12 * 5 + 11, 12 * 5,
12 * 5 + 1
]
self.assertEqual(expected, list(melody))
def testToSequenceEndsWithNonzeroStart(self):
melody = melodies_lib.Melody([NO_EVENT, 1, NO_EVENT], start_step=4)
sequence = melody.to_sequence(velocity=100,
instrument=0,
sequence_start_time=0.5,
qpm=60.0)
self.assertProtoEquals(
'ticks_per_quarter: 220 '
'tempos < qpm: 60.0 > '
'total_time: 2.25 '
'notes < pitch: 1 velocity: 100 start_time: 1.75 end_time: 2.25 > ',
sequence)
def testGetMajorKey(self):
# D Major.
events = [
NO_EVENT, 12 * 2 + 2, 12 * 3 + 4, 12 * 5 + 1, 12 * 6 + 6,
12 * 4 + 11, 12 * 3 + 9, 12 * 5 + 7, NOTE_OFF
]
melody = melodies_lib.Melody(events)
self.assertEqual(2, melody.get_major_key())
# C# Major with accidentals.
events = [
NO_EVENT, 12 * 2 + 1, 12 * 4 + 8, 12 * 5 + 5, 12 * 6 + 6,
12 * 3 + 3, 12 * 2 + 11, 12 * 3 + 10, 12 * 5, 12 * 2 + 8,
12 * 4 + 1, 12 * 3 + 5, 12 * 5 + 9, 12 * 4 + 3, NOTE_OFF
]
melody = melodies_lib.Melody(events)
self.assertEqual(1, melody.get_major_key())
# One note in C Major.
events = [NO_EVENT, 12 * 2 + 11, NOTE_OFF]
melody = melodies_lib.Melody(events)
self.assertEqual(0, melody.get_major_key())
def testSquash(self):
# Melody in C, transposed to C, and squashed to 1 octave.
events = [12 * 5, NO_EVENT, 12 * 5 + 2, NOTE_OFF, 12 * 6 + 4, NO_EVENT]
melody = melodies_lib.Melody(events)
melody.squash(min_note=12 * 5, max_note=12 * 6, transpose_to_key=0)
expected = [
12 * 5, NO_EVENT, 12 * 5 + 2, NOTE_OFF, 12 * 5 + 4, NO_EVENT
]
self.assertEqual(expected, list(melody))
# Melody in D, transposed to C, and squashed to 1 octave.
events = [12 * 5 + 2, 12 * 5 + 4, 12 * 6 + 7, 12 * 6 + 6, 12 * 5 + 1]
melody = melodies_lib.Melody(events)
melody.squash(min_note=12 * 5, max_note=12 * 6, transpose_to_key=0)
expected = [12 * 5, 12 * 5 + 2, 12 * 5 + 5, 12 * 5 + 4, 12 * 5 + 11]
self.assertEqual(expected, list(melody))
# Melody in D, transposed to E, and squashed to 1 octave.
events = [12 * 5 + 2, 12 * 5 + 4, 12 * 6 + 7, 12 * 6 + 6, 12 * 4 + 11]
melody = melodies_lib.Melody(events)
melody.squash(min_note=12 * 5, max_note=12 * 6, transpose_to_key=4)
expected = [12 * 5 + 4, 12 * 5 + 6, 12 * 5 + 9, 12 * 5 + 8, 12 * 5 + 1]
self.assertEqual(expected, list(melody))
def testFromNotesPolyphonic(self):
testing_lib.add_track_to_sequence(self.note_sequence, 0,
[(12, 100, 0.0, 10.0),
(11, 55, 0.0, 0.50)])
quantized_sequence = sequences_lib.quantize_note_sequence(
self.note_sequence, self.steps_per_quarter)
melody = melodies_lib.Melody()
with self.assertRaises(melodies_lib.PolyphonicMelodyError):
melody.from_quantized_sequence(quantized_sequence,
search_start_step=0,
instrument=0,
ignore_polyphonic_notes=False)
self.assertFalse(list(melody))
def testSquash(self):
# LeadSheet squash should agree with melody squash & chords transpose.
melody_events = [12 * 5, NO_EVENT, 12 * 5 + 2,
NOTE_OFF, 12 * 6 + 4, NO_EVENT]
chord_events = ['C', 'Am', 'Dm', 'G', 'C', NO_CHORD]
melody = melodies_lib.Melody(melody_events)
chords = chords_lib.ChordProgression(chord_events)
expected_melody = copy.deepcopy(melody)
expected_chords = copy.deepcopy(chords)
lead_sheet = lead_sheets_lib.LeadSheet(melody, chords)
lead_sheet.squash(min_note=12 * 5, max_note=12 * 6, transpose_to_key=0)
transpose_amount = expected_melody.squash(
min_note=12 * 5, max_note=12 * 6, transpose_to_key=0)
expected_chords.transpose(transpose_amount=transpose_amount)
self.assertEqual(expected_melody, lead_sheet.melody)
self.assertEqual(expected_chords, lead_sheet.chords)
def testTranspose(self):
# LeadSheet transposition should agree with melody & chords transpositions.
melody_events = [12 * 5 + 4, NO_EVENT, 12 * 5 + 5,
NOTE_OFF, 12 * 6, NO_EVENT]
chord_events = [NO_CHORD, 'C', 'F', 'Dm', 'D', 'G']
melody = melodies_lib.Melody(melody_events)
chords = chords_lib.ChordProgression(chord_events)
expected_melody = copy.deepcopy(melody)
expected_chords = copy.deepcopy(chords)
lead_sheet = lead_sheets_lib.LeadSheet(melody, chords)
lead_sheet.transpose(transpose_amount=-5, min_note=12 * 5, max_note=12 * 7)
expected_melody.transpose(
transpose_amount=-5, min_note=12 * 5, max_note=12 * 7)
expected_chords.transpose(transpose_amount=-5)
self.assertEqual(expected_melody, lead_sheet.melody)
self.assertEqual(expected_chords, lead_sheet.chords)
def testToSequenceEndsWithSustainedNote(self):
melody = melodies_lib.Melody([
NO_EVENT, 1, NO_EVENT, NOTE_OFF, NO_EVENT, 2, 3, NO_EVENT, NO_EVENT
])
sequence = melody.to_sequence(velocity=100,
instrument=0,
sequence_start_time=0,
qpm=60.0)
self.assertProtoEquals(
'ticks_per_quarter: 220 '
'tempos < qpm: 60.0 > '
'total_time: 2.25 '
'notes < pitch: 1 velocity: 100 start_time: 0.25 end_time: 0.75 > '
'notes < pitch: 2 velocity: 100 start_time: 1.25 end_time: 1.5 > '
'notes < pitch: 3 velocity: 100 start_time: 1.5 end_time: 2.25 > ',
sequence)
def testLeadSheetExtractor(self):
note_sequence = common_testing_lib.parse_test_proto(
music_pb2.NoteSequence, """
time_signatures: {
numerator: 4
denominator: 4}
tempos: {
qpm: 60}""")
music_testing_lib.add_track_to_sequence(note_sequence,
0, [(12, 100, 2, 4),
(11, 1, 6, 7)])
music_testing_lib.add_track_to_sequence(note_sequence,
1, [(12, 127, 2, 4),
(14, 50, 6, 8)])
music_testing_lib.add_chords_to_sequence(note_sequence, [('Cm7', 2),
('F9', 4),
('G7b9', 6)])
quantized_sequence = sequences_lib.quantize_note_sequence(
note_sequence, steps_per_quarter=1)
expected_melody_events = [[
NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 11
], [
NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 14, NO_EVENT
]]
expected_chord_events = [[
NO_CHORD, NO_CHORD, 'Cm7', 'Cm7', 'F9', 'F9', 'G7b9'
], [NO_CHORD, NO_CHORD, 'Cm7', 'Cm7', 'F9', 'F9', 'G7b9', 'G7b9']]
expected_lead_sheets = []
for melody_events, chord_events in zip(expected_melody_events,
expected_chord_events):
melody = melodies_lib.Melody(melody_events,
steps_per_quarter=1,
steps_per_bar=4)
chords = chords_lib.ChordProgression(chord_events,
steps_per_quarter=1,
steps_per_bar=4)
lead_sheet = lead_sheets_lib.LeadSheet(melody, chords)
expected_lead_sheets.append(lead_sheet)
unit = lead_sheet_pipelines.LeadSheetExtractor(
min_bars=1,
min_unique_pitches=1,
gap_bars=1,
all_transpositions=False)
self._unit_transform_test(unit, quantized_sequence,
expected_lead_sheets)
def testFromNotesPolyphonicWithIgnorePolyphonicNotes(self):
testing_lib.add_track_to_sequence(self.note_sequence, 0,
[(12, 100, 0.0, 2.0),
(19, 100, 0.0, 3.0),
(12, 100, 1.0, 3.0),
(19, 100, 1.0, 4.0)])
quantized_sequence = sequences_lib.quantize_note_sequence(
self.note_sequence, self.steps_per_quarter)
melody = melodies_lib.Melody()
melody.from_quantized_sequence(quantized_sequence,
search_start_step=0,
instrument=0,
ignore_polyphonic_notes=True)
expected = ([19] + [NO_EVENT] * 3 + [19] + [NO_EVENT] * 11)
self.assertEqual(expected, list(melody))
self.assertEqual(16, melody.steps_per_bar)
def testSetLength(self): # Setting LeadSheet length should agree with setting length on melody and # chords separately. melody_events = [60] chord_events = ['C7'] melody = melodies_lib.Melody(melody_events, start_step=9) chords = chords_lib.ChordProgression(chord_events, start_step=9) expected_melody = copy.deepcopy(melody) expected_chords = copy.deepcopy(chords) lead_sheet = lead_sheets_lib.LeadSheet(melody, chords) lead_sheet.set_length(5) expected_melody.set_length(5) expected_chords.set_length(5) self.assertEqual(expected_melody, lead_sheet.melody) self.assertEqual(expected_chords, lead_sheet.chords) self.assertEqual(9, lead_sheet.start_step) self.assertEqual(14, lead_sheet.end_step) self.assertListEqual([9, 10, 11, 12, 13], lead_sheet.steps)
def testFromNotesTrimEmptyMeasures(self):
testing_lib.add_track_to_sequence(self.note_sequence, 0,
[(12, 100, 1.5, 1.75),
(11, 100, 2, 2.25)])
quantized_sequence = sequences_lib.quantize_note_sequence(
self.note_sequence, self.steps_per_quarter)
melody = melodies_lib.Melody()
melody.from_quantized_sequence(quantized_sequence,
search_start_step=0,
instrument=0,
ignore_polyphonic_notes=False)
expected = [
NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT, 12,
NOTE_OFF, 11
]
self.assertEqual(expected, list(melody))
self.assertEqual(16, melody.steps_per_bar)
def testFromNotesTimeOverlap(self):
testing_lib.add_track_to_sequence(self.note_sequence, 0,
[(12, 100, 1, 2),
(11, 100, 3.25, 3.75),
(13, 100, 2, 4)])
quantized_sequence = sequences_lib.quantize_note_sequence(
self.note_sequence, self.steps_per_quarter)
melody = melodies_lib.Melody()
melody.from_quantized_sequence(quantized_sequence,
search_start_step=0,
instrument=0,
ignore_polyphonic_notes=False)
expected = [
NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT, 12, NO_EVENT, NO_EVENT,
NO_EVENT, 13, NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT, 11, NO_EVENT
]
self.assertEqual(expected, list(melody))
def testEncode(self):
events = [100, 100, 107, 111, NO_EVENT, 99, 112, NOTE_OFF, NO_EVENT]
melody = melodies_lib.Melody(events)
melody.squash(
self.min_note,
self.max_note,
self.transpose_to_key)
inputs, labels = self.med.encode(melody)
expected_inputs = [
[0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0],
[1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0],
[0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]]
expected_labels = [2, 9, 13, 0, 13, 2, 1, 0]
self.assertEqual(inputs, expected_inputs)
self.assertEqual(labels, expected_labels)
def testToSequenceSimple(self):
melody = melodies_lib.Melody([
NO_EVENT, 1, NO_EVENT, NOTE_OFF, NO_EVENT, 2, 3, NOTE_OFF, NO_EVENT
])
sequence = melody.to_sequence(velocity=10,
instrument=1,
sequence_start_time=2,
qpm=60.0)
self.assertProtoEquals(
'ticks_per_quarter: 220 '
'tempos < qpm: 60.0 > '
'total_time: 3.75 '
'notes < '
' pitch: 1 velocity: 10 instrument: 1 start_time: 2.25 end_time: 2.75 '
'> '
'notes < '
' pitch: 2 velocity: 10 instrument: 1 start_time: 3.25 end_time: 3.5 '
'> '
'notes < '
' pitch: 3 velocity: 10 instrument: 1 start_time: 3.5 end_time: 3.75 '
'> ', sequence)
def testSlice(self):
testing_lib.add_track_to_sequence(self.note_sequence, 0,
[(12, 100, 1, 3), (11, 100, 5, 7),
(13, 100, 9, 10)])
quantized_sequence = sequences_lib.quantize_note_sequence(
self.note_sequence, steps_per_quarter=1)
melody = melodies_lib.Melody()
melody.from_quantized_sequence(quantized_sequence,
search_start_step=0,
instrument=0,
ignore_polyphonic_notes=False)
expected = [
NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 11, NO_EVENT, NOTE_OFF,
NO_EVENT, 13
]
self.assertEqual(expected, list(melody))
expected_slice = [
NO_EVENT, NO_EVENT, NO_EVENT, 11, NO_EVENT, NOTE_OFF, NO_EVENT
]
self.assertEqual(expected_slice, list(melody[2:-1]))
