def testExtendMelodies(self):
melody1 = melodies_lib.MonophonicMelody()
melody1.from_event_list([60])
melody2 = melodies_lib.MonophonicMelody()
melody2.from_event_list([60])
melody3 = melodies_lib.MonophonicMelody()
melody3.from_event_list([60])
melody4 = melodies_lib.MonophonicMelody()
melody4.from_event_list([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.melody_encoder_decoder.extend_melodies(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 testTranspose(self):
# MonophonicMelody 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.MonophonicMelody()
melody.from_event_list(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))
# MonophonicMelody 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.MonophonicMelody()
melody.from_event_list(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))
# MonophonicMelody 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.MonophonicMelody()
melody.from_event_list(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 testSquash(self):
# MonophonicMelody 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.MonophonicMelody()
melody.from_event_list(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))
# MonophonicMelody 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.MonophonicMelody()
melody.from_event_list(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))
# MonophonicMelody 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.MonophonicMelody()
melody.from_event_list(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 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.MonophonicMelody()
melody.from_event_list(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.MonophonicMelody()
melody.from_event_list(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 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.MonophonicMelody()
melody.from_event_list(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.MonophonicMelody()
melody.from_event_list(events)
self.assertEqual(1, melody.get_major_key())
# One note in C Major.
events = [NO_EVENT, 12 * 2 + 11, NOTE_OFF]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(events)
self.assertEqual(0, melody.get_major_key())
def testSetLength(self):
events = [60]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(events, start_step=9)
melody.set_length(5)
self.assertListEqual([60, NOTE_OFF, NO_EVENT, NO_EVENT, NO_EVENT],
list(melody))
self.assertEquals(9, melody.start_step)
self.assertEquals(14, melody.end_step)
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(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.assertEquals(5, melody.start_step)
self.assertEquals(10, melody.end_step)
events = [60, NO_EVENT, NO_EVENT, NOTE_OFF]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(events)
melody.set_length(3)
self.assertListEqual([60, NO_EVENT, NO_EVENT], list(melody))
self.assertEquals(0, melody.start_step)
self.assertEquals(3, melody.end_step)
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(events)
melody.set_length(3, from_left=True)
self.assertListEqual([NO_EVENT, NO_EVENT, NOTE_OFF], list(melody))
self.assertEquals(1, melody.start_step)
self.assertEquals(4, melody.end_step)
def testSetLength(self):
events = [60]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(events)
melody.set_length(5)
self.assertListEqual([60, -2, -2, -2, -2], melody.events)
events = [60, -1, -1, -2]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(events)
melody.set_length(3)
self.assertListEqual([60, -1, -1], melody.events)
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.MonophonicMelody()
melody.from_event_list([
NO_EVENT, 1, NO_EVENT, NOTE_OFF, NO_EVENT, 2, 3, NOTE_OFF, NO_EVENT
])
chords = chords_lib.ChordProgression()
chords.from_event_list(
[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.assertEquals(melody_sequence.ticks_per_quarter,
sequence.ticks_per_quarter)
self.assertProtoEquals(melody_sequence.tempos, sequence.tempos)
self.assertEquals(melody_sequence.total_time, sequence.total_time)
self.assertProtoEquals(melody_sequence.notes, sequence.notes)
self.assertProtoEquals(chords_sequence.text_annotations,
sequence.text_annotations)
def testMonophonicMelodyExtractor(self):
quantized_sequence = sequences_lib.QuantizedSequence()
quantized_sequence.steps_per_beat = 1
testing_lib.add_quantized_track(
quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 7)])
testing_lib.add_quantized_track(
quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8)])
expected_events = [
[NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 11, NOTE_OFF],
[NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 14, NO_EVENT,
NOTE_OFF]]
expected_melodies = []
for events_list in expected_events:
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(events_list)
melody.steps_per_bar = 4
expected_melodies.append(melody)
expected_melodies[0].end_step = 8
expected_melodies[1].end_step = 12
unit = pipelines_common.MonophonicMelodyExtractor(
min_bars=1, min_unique_pitches=1, gap_bars=1)
self._unit_transform_test(unit, quantized_sequence, expected_melodies)
def testGetInputsBatch(self):
events1 = [100, 100, 107, 111, NO_EVENT, 99, 112, NOTE_OFF, NO_EVENT]
melody1 = melodies_lib.MonophonicMelody()
melody1.from_event_list(events1)
events2 = [9, 10, 12, 14, 15, 17, 19, 21, 22]
melody2 = melodies_lib.MonophonicMelody()
melody2.from_event_list(events2)
transpose_amount1 = melody1.squash(
self.melody_encoder_decoder.min_note,
self.melody_encoder_decoder.max_note,
self.melody_encoder_decoder.transpose_to_key)
transpose_amount2 = melody2.squash(
self.melody_encoder_decoder.min_note,
self.melody_encoder_decoder.max_note,
self.melody_encoder_decoder.transpose_to_key)
self.assertEqual(transpose_amount1, -40)
self.assertEqual(transpose_amount2, 50)
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.melody_encoder_decoder.get_inputs_batch(melodies, True))
self.assertListEqual(
expected_last_event_inputs_batch,
self.melody_encoder_decoder.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.MonophonicMelody()
melody.from_event_list(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.MonophonicMelody()
melody.from_event_list(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.MonophonicMelody()
expected = [0] * 12
self.assertEqual(expected, list(melody.get_note_histogram()))
def testFromNotesStepsPerBar(self):
self.quantized_sequence.time_signature = sequences_lib.TimeSignature(7, 8)
self.quantized_sequence.steps_per_quarter = 12
self.quantized_sequence.tracks[0] = []
melody = melodies_lib.MonophonicMelody()
melody.from_quantized_sequence(self.quantized_sequence,
start_step=0, track=0,
ignore_polyphonic_notes=False)
self.assertEqual(42, melody.steps_per_bar)
def testToSequenceEmpty(self):
melody = melodies_lib.MonophonicMelody()
sequence = melody.to_sequence(velocity=10,
instrument=1,
sequence_start_time=2,
bpm=60.0)
self.assertProtoEquals('ticks_per_beat: 96 '
'tempos < bpm: 60.0 > ', sequence)
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.MonophonicMelody()
melody.from_event_list(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 testFromNotesPolyphonic(self):
testing_lib.add_quantized_track(self.quantized_sequence, 0,
[(12, 100, 4, 16), (19, 100, 4, 12)])
melody = melodies_lib.MonophonicMelody()
with self.assertRaises(melodies_lib.PolyphonicMelodyException):
melody.from_quantized_sequence(self.quantized_sequence,
start_step=0,
track=0,
ignore_polyphonic_notes=False)
self.assertFalse(list(melody))
def testDeepcopy(self):
melody = melodies_lib.MonophonicMelody()
melody.from_event_list([0, 1, 2],
start_step=0,
steps_per_quarter=4,
steps_per_bar=8)
melody_copy = melody.deepcopy()
self.assertEqual(melody, melody_copy)
melody.set_length(2)
self.assertNotEqual(melody, melody_copy)
def testFromNotesPolyphonicWithIgnorePolyphonicNotes(self):
testing_lib.add_quantized_track(self.quantized_sequence, 0,
[(12, 100, 0, 8), (19, 100, 0, 12),
(12, 100, 4, 12), (19, 100, 4, 16)])
melody = melodies_lib.MonophonicMelody()
melody.from_quantized_sequence(self.quantized_sequence,
start_step=0,
track=0,
ignore_polyphonic_notes=True)
expected = [19] + [NO_EVENT] * 3 + [19] + [NO_EVENT] * 11 + [NOTE_OFF]
self.assertEqual(expected, list(melody))
def testFromNotesTrimEmptyMeasures(self):
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 6, 7), (11, 100, 8, 9)])
melody = melodies_lib.MonophonicMelody()
melody.from_quantized_sequence(self.quantized_sequence,
start_step=0, track=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 testGetKeyHistogram(self):
# One C.
events = [NO_EVENT, 12 * 5, NOTE_OFF]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(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.MonophonicMelody()
melody.from_event_list(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.MonophonicMelody()
melody.from_event_list(events)
expected = [2, 2, 2, 2, 1, 2, 1, 2, 2, 2, 2, 1]
self.assertListEqual(expected, list(melody.get_major_key_histogram()))
def testAppendEvent(self):
melody = melodies_lib.MonophonicMelody()
melody.append_event(14)
self.assertListEqual([14], list(melody))
self.assertEqual(0, melody.start_step)
self.assertEqual(1, melody.end_step)
melody.append_event(NOTE_OFF)
self.assertListEqual([14, NOTE_OFF], list(melody))
self.assertEqual(0, melody.start_step)
self.assertEqual(2, melody.end_step)
def testSetLength(self):
# Setting LeadSheet length should agree with setting length on melody and
# chords separately.
melody_events = [60]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(melody_events, start_step=9)
chord_events = ['C7']
chords = chords_lib.ChordProgression()
chords.from_event_list(chord_events, start_step=9)
lead_sheet = lead_sheets_lib.LeadSheet(melody, chords)
lead_sheet.set_length(5)
expected_melody = melodies_lib.MonophonicMelody()
expected_melody.from_event_list(melody_events[:], start_step=9)
expected_melody.set_length(5)
expected_chords = chords_lib.ChordProgression()
expected_chords.from_event_list(chord_events[:], start_step=9)
expected_chords.set_length(5)
self.assertEquals(expected_melody, lead_sheet.melody)
self.assertEquals(expected_chords, lead_sheet.chords)
self.assertEquals(9, lead_sheet.start_step)
self.assertEquals(14, lead_sheet.end_step)
def testFromNotesTimeOverlap(self):
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 4, 8), (11, 100, 13, 15),
(13, 100, 8, 16)])
melody = melodies_lib.MonophonicMelody()
melody.from_quantized_sequence(self.quantized_sequence,
start_step=0, track=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 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
]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(melody_events)
chord_events = ['C', 'Am', 'Dm', 'G', 'C', NO_CHORD]
chords = chords_lib.ChordProgression()
chords.from_event_list(chord_events)
lead_sheet = lead_sheets_lib.LeadSheet(melody, chords)
lead_sheet.squash(min_note=12 * 5, max_note=12 * 6, transpose_to_key=0)
expected_melody = melodies_lib.MonophonicMelody()
expected_melody.from_event_list(melody_events[:])
transpose_amount = expected_melody.squash(min_note=12 * 5,
max_note=12 * 6,
transpose_to_key=0)
expected_chords = chords_lib.ChordProgression()
expected_chords.from_event_list(chord_events[:])
expected_chords.transpose(transpose_amount=transpose_amount)
self.assertEqual(expected_melody, lead_sheet.melody)
self.assertEqual(expected_chords, lead_sheet.chords)
def testFromQuantizedSequence(self):
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 0, 40), (11, 55, 1, 2), (40, 45, 10, 14),
(55, 120, 16, 17), (52, 99, 19, 20)])
melody = melodies_lib.MonophonicMelody()
melody.from_quantized_sequence(self.quantized_sequence,
start_step=0, track=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(16, melody.steps_per_bar)
def testFromNotesStartAndEndStep(self):
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 4, 8), (11, 100, 9, 10), (13, 100, 13, 15),
(14, 100, 19, 20), (15, 100, 21, 27)])
melody = melodies_lib.MonophonicMelody()
melody.from_quantized_sequence(self.quantized_sequence,
start_step=18, track=0,
ignore_polyphonic_notes=False)
expected = [NO_EVENT, NO_EVENT, NO_EVENT, 14, NOTE_OFF, 15, NO_EVENT,
NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT]
self.assertEqual(expected, list(melody))
self.assertEqual(16, melody.start_step)
self.assertEqual(27, melody.end_step)
def testToSequenceEndsWithNonzeroStart(self):
melody = melodies_lib.MonophonicMelody()
melody.from_event_list([NO_EVENT, 1, NO_EVENT], start_step=4)
sequence = melody.to_sequence(velocity=100,
instrument=0,
sequence_start_time=0.5,
bpm=60.0)
self.assertProtoEquals(
'ticks_per_beat: 96 '
'tempos < bpm: 60.0 > '
'total_time: 2.25 '
'notes < pitch: 1 velocity: 100 start_time: 1.75 end_time: 2.25 > ',
sequence)
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
]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(melody_events)
chord_events = [NO_CHORD, 'C', 'F', 'Dm', 'D', 'G']
chords = chords_lib.ChordProgression()
chords.from_event_list(chord_events)
lead_sheet = lead_sheets_lib.LeadSheet(melody, chords)
lead_sheet.transpose(transpose_amount=-5,
min_note=12 * 5,
max_note=12 * 7)
expected_melody = melodies_lib.MonophonicMelody()
expected_melody.from_event_list(melody_events[:])
expected_melody.transpose(transpose_amount=-5,
min_note=12 * 5,
max_note=12 * 7)
expected_chords = chords_lib.ChordProgression()
expected_chords.from_event_list(chord_events[:])
expected_chords.transpose(transpose_amount=-5)
self.assertEqual(expected_melody, lead_sheet.melody)
self.assertEqual(expected_chords, lead_sheet.chords)
def testEncode(self):
events = [100, 100, 107, 111, NO_EVENT, 99, 112, NOTE_OFF, NO_EVENT]
melody = melodies_lib.MonophonicMelody()
melody.from_event_list(events)
sequence_example = self.melody_encoder_decoder.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]
expected_sequence_example = sequence_example_lib.make_sequence_example(
expected_inputs, expected_labels)
self.assertEqual(sequence_example, expected_sequence_example)
def testFromQuantizedSequenceNotCommonTimeSig(self):
self.quantized_sequence.time_signature = sequences_lib.TimeSignature(
7, 8)
testing_lib.add_quantized_track(self.quantized_sequence, 0,
[(12, 100, 0, 40), (11, 55, 1, 2),
(40, 45, 10, 14), (55, 120, 16, 17),
(52, 99, 19, 20)])
melody = melodies_lib.MonophonicMelody()
melody.from_quantized_sequence(self.quantized_sequence,
start_step=0,
track=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, NOTE_OFF
]
self.assertEqual(expected, list(melody))
self.assertEqual(14, melody.steps_per_bar)
def testToSequenceEndsWithSustainedNote(self):
melody = melodies_lib.MonophonicMelody()
melody.from_event_list([
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,
bpm=60.0)
self.assertProtoEquals(
'ticks_per_beat: 96 '
'tempos < bpm: 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)