def testExtractMelodiesSimple(self):
self.quantized_sequence.steps_per_beat = 1
testing_lib.add_quantized_track(self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 7)])
testing_lib.add_quantized_track(self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8)])
expected = [[
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
]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence,
min_bars=1,
gap_bars=1,
min_unique_pitches=2,
ignore_polyphonic_notes=True)
self.assertEqual(2, len(melodies))
self.assertTrue(isinstance(melodies[0], melodies_lib.MonophonicMelody))
self.assertTrue(isinstance(melodies[1], melodies_lib.MonophonicMelody))
melodies = sorted([list(melody) for melody in melodies])
self.assertEqual(expected, melodies)
def testExtractLeadSheetFragments(self):
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 11)])
testing_lib.add_quantized_track(self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8),
(50, 100, 33, 37), (52, 100, 34, 37)])
testing_lib.add_quantized_chords(self.quantized_sequence,
[('C', 2), ('G7', 6), ('Cmaj7', 33)])
lead_sheets, _ = lead_sheets_lib.extract_lead_sheet_fragments(
self.quantized_sequence,
min_bars=1,
gap_bars=2,
min_unique_pitches=2,
ignore_polyphonic_notes=True,
require_chords=True)
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence,
min_bars=1,
gap_bars=2,
min_unique_pitches=2,
ignore_polyphonic_notes=True)
chord_progressions, _ = chords_lib.extract_chords_for_melodies(
self.quantized_sequence, melodies)
self.assertEqual(list(melodies),
list(lead_sheet.melody for lead_sheet in lead_sheets))
self.assertEqual(list(chord_progressions),
list(lead_sheet.chords for lead_sheet in lead_sheets))
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 testExtractChordsForMelodiesCoincidentChords(self):
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 11)])
testing_lib.add_quantized_track(self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8),
(50, 100, 33, 37), (52, 100, 34, 37)])
testing_lib.add_quantized_chords(self.quantized_sequence,
[('C', 2), ('G7', 6), ('E13', 8),
('Cmaj7', 8)])
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence,
min_bars=1,
gap_bars=2,
min_unique_pitches=2,
ignore_polyphonic_notes=True)
chord_progressions, stats = chords_lib.extract_chords_for_melodies(
self.quantized_sequence, melodies)
expected = [[NO_CHORD, NO_CHORD, 'C', 'C', 'C', 'C', 'G7', 'G7'],
['Cmaj7', 'Cmaj7', 'Cmaj7', 'Cmaj7', 'Cmaj7']]
stats_dict = dict([(stat.name, stat) for stat in stats])
self.assertIsNone(chord_progressions[0])
self.assertEqual(expected,
[list(chords) for chords in chord_progressions[1:]])
self.assertEqual(stats_dict['coincident_chords'].count, 1)
def testQuantizer(self):
steps_per_quarter = 4
note_sequence = testing_lib.parse_test_proto(
music_pb2.NoteSequence, """
time_signatures: {
numerator: 4
denominator: 4}
tempos: {
qpm: 60}""")
testing_lib.add_track(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)])
expected_quantized_sequence = sequences_lib.QuantizedSequence()
expected_quantized_sequence.qpm = 60.0
expected_quantized_sequence.steps_per_quarter = steps_per_quarter
testing_lib.add_quantized_track(expected_quantized_sequence, 0,
[(12, 100, 0, 40), (11, 55, 1, 2),
(40, 45, 10, 14), (55, 120, 16, 17),
(52, 99, 19, 20)])
unit = pipelines_common.Quantizer(steps_per_quarter)
self._unit_transform_test(unit, note_sequence,
[expected_quantized_sequence])
def testExtractLeadSheetFragmentsNoChords(self):
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 11)])
testing_lib.add_quantized_track(self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8),
(50, 100, 33, 37), (52, 100, 34, 37)])
testing_lib.add_quantized_chords(self.quantized_sequence,
[('C', 2), ('G7', 6), (NO_CHORD, 10)])
lead_sheets, stats = lead_sheets_lib.extract_lead_sheet_fragments(
self.quantized_sequence,
min_bars=1,
gap_bars=2,
min_unique_pitches=2,
ignore_polyphonic_notes=True,
require_chords=True)
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence,
min_bars=1,
gap_bars=2,
min_unique_pitches=2,
ignore_polyphonic_notes=True)
chord_progressions, _ = chords_lib.extract_chords_for_melodies(
self.quantized_sequence, melodies)
stats_dict = dict([(stat.name, stat) for stat in stats])
# Last lead sheet should be rejected for having no chords.
self.assertEqual(list(melodies[:2]),
list(lead_sheet.melody for lead_sheet in lead_sheets))
self.assertEqual(list(chord_progressions[:2]),
list(lead_sheet.chords for lead_sheet in lead_sheets))
self.assertEqual(stats_dict['empty_chord_progressions'].count, 1)
def testQuantizer(self):
steps_per_beat = 4
note_sequence = testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
time_signatures: {
numerator: 4
denominator: 4}
tempos: {
bpm: 60}""")
testing_lib.add_track(
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)])
expected_quantized_sequence = sequences_lib.QuantizedSequence()
expected_quantized_sequence.bpm = 60.0
expected_quantized_sequence.steps_per_beat = steps_per_beat
testing_lib.add_quantized_track(
expected_quantized_sequence, 0,
[(12, 100, 0, 40), (11, 55, 1, 2), (40, 45, 10, 14),
(55, 120, 16, 17), (52, 99, 19, 20)])
unit = pipelines_common.Quantizer(steps_per_beat)
self._unit_transform_test(unit, note_sequence,
[expected_quantized_sequence])
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 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 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 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, NOTE_OFF]
self.assertEqual(expected, list(melody))
def testFromNoteSequence(self):
testing_lib.add_track(
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)])
testing_lib.add_quantized_track(
self.expected_quantized_sequence, 0,
[(12, 100, 0, 40), (11, 55, 1, 2), (40, 45, 10, 14),
(55, 120, 16, 17), (52, 99, 19, 20)])
quantized = sequences_lib.QuantizedSequence()
quantized.from_note_sequence(self.note_sequence, self.steps_per_beat)
self.assertEqual(self.expected_quantized_sequence, quantized)
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 testRounding(self):
testing_lib.add_track(
self.note_sequence, 1,
[(12, 100, 0.01, 0.24), (11, 100, 0.22, 0.55), (40, 100, 0.50, 0.75),
(41, 100, 0.689, 1.18), (44, 100, 1.19, 1.69), (55, 100, 4.0, 4.01)])
testing_lib.add_quantized_track(
self.expected_quantized_sequence, 1,
[(12, 100, 0, 1), (11, 100, 1, 2), (40, 100, 2, 3),
(41, 100, 3, 4), (44, 100, 5, 7), (55, 100, 16, 17)])
quantized = sequences_lib.QuantizedSequence()
quantized.from_note_sequence(self.note_sequence, self.steps_per_beat)
self.assertEqual(self.expected_quantized_sequence, quantized)
def testFromNoteSequence(self):
testing_lib.add_track(
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)])
testing_lib.add_quantized_track(
self.expected_quantized_sequence, 0,
[(12, 100, 0, 40), (11, 55, 1, 2), (40, 45, 10, 14),
(55, 120, 16, 17), (52, 99, 19, 20)])
quantized = sequences_lib.QuantizedSequence()
quantized.from_note_sequence(self.note_sequence, self.steps_per_quarter)
self.assertEqual(self.expected_quantized_sequence, quantized)
def testRounding(self):
testing_lib.add_track(
self.note_sequence, 1,
[(12, 100, 0.01, 0.24), (11, 100, 0.22, 0.55), (40, 100, 0.50, 0.75),
(41, 100, 0.689, 1.18), (44, 100, 1.19, 1.69), (55, 100, 4.0, 4.01)])
testing_lib.add_quantized_track(
self.expected_quantized_sequence, 1,
[(12, 100, 0, 1), (11, 100, 1, 2), (40, 100, 2, 3),
(41, 100, 3, 5), (44, 100, 5, 7), (55, 100, 16, 17)])
quantized = sequences_lib.QuantizedSequence()
quantized.from_note_sequence(self.note_sequence, self.steps_per_quarter)
self.assertEqual(self.expected_quantized_sequence, quantized)
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, NOTE_OFF]
self.assertEqual(expected, list(melody))
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 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 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, NOTE_OFF]
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, NOTE_OFF]
self.assertEqual(expected, list(melody))
self.assertEqual(32, melody.end_step)
def testExtractMelodiesStatistics(self):
self.quantized_sequence.steps_per_beat = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 7), (10, 100, 8, 10), (9, 100, 11, 14),
(8, 100, 16, 40), (7, 100, 41, 42)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 2, 8)])
testing_lib.add_quantized_track(
self.quantized_sequence, 2,
[(12, 127, 0, 1)])
testing_lib.add_quantized_track(
self.quantized_sequence, 3,
[(12, 127, 2, 4), (12, 50, 6, 8)])
_, stats = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, gap_bars=1, min_unique_pitches=2,
ignore_polyphonic_notes=False)
stats_dict = dict([(stat.name, stat) for stat in stats])
self.assertEqual(stats_dict['polyphonic_tracks_discarded'].count, 1)
self.assertEqual(stats_dict['melodies_discarded_too_short'].count, 1)
self.assertEqual(stats_dict['melodies_discarded_too_few_pitches'].count, 1)
self.assertEqual(
stats_dict['melody_lengths_in_bars'].counters,
{float('-inf'): 0, 0: 1, 1: 0, 2: 1, 10: 1, 20: 0, 30: 0, 40: 0, 50: 0,
100: 0, 200: 0, 500: 0})
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 testExtractMelodiesStatistics(self):
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 7), (10, 100, 8, 10), (9, 100, 11, 14),
(8, 100, 16, 40), (7, 100, 41, 42)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 2, 8)])
testing_lib.add_quantized_track(
self.quantized_sequence, 2,
[(12, 127, 0, 1)])
testing_lib.add_quantized_track(
self.quantized_sequence, 3,
[(12, 127, 2, 4), (12, 50, 6, 8)])
_, stats = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, gap_bars=1, min_unique_pitches=2,
ignore_polyphonic_notes=False)
stats_dict = dict([(stat.name, stat) for stat in stats])
self.assertEqual(stats_dict['polyphonic_tracks_discarded'].count, 1)
self.assertEqual(stats_dict['melodies_discarded_too_short'].count, 1)
self.assertEqual(stats_dict['melodies_discarded_too_few_pitches'].count, 1)
self.assertEqual(
stats_dict['melody_lengths_in_bars'].counters,
{float('-inf'): 0, 0: 1, 1: 0, 2: 1, 10: 1, 20: 0, 30: 0, 40: 0, 50: 0,
100: 0, 200: 0, 500: 0})
def testExtractMelodiesMelodyTooShort(self):
self.quantized_sequence.steps_per_beat = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 127, 2, 4), (14, 50, 6, 7)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8)])
expected = [[NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 14,
NO_EVENT, NOTE_OFF]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=2, gap_bars=1, min_unique_pitches=2,
ignore_polyphonic_notes=True)
melodies = [list(melody) for melody in melodies]
self.assertEqual(expected, melodies)
def testExtractMelodiesLateStart(self):
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 102, 103), (13, 100, 104, 106)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 100, 100, 101), (13, 100, 102, 105)])
expected = [[NO_EVENT, NO_EVENT, 12, NOTE_OFF, 13, NO_EVENT],
[12, NOTE_OFF, 13, NO_EVENT, NO_EVENT]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, gap_bars=1, min_unique_pitches=2,
ignore_polyphonic_notes=True)
melodies = sorted([list(melody) for melody in melodies])
self.assertEqual(expected, melodies)
def testExtractMelodiesMelodyTooShort(self):
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 127, 2, 4), (14, 50, 6, 7)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 9)])
expected = [[NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 14,
NO_EVENT, NO_EVENT]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=2, gap_bars=1, min_unique_pitches=2,
ignore_polyphonic_notes=True)
melodies = [list(melody) for melody in melodies]
self.assertEqual(expected, melodies)
def testExtractMelodiesLateStart(self):
self.quantized_sequence.steps_per_beat = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 102, 103), (13, 100, 104, 106)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 100, 100, 101), (13, 100, 102, 104)])
expected = [[NO_EVENT, NO_EVENT, 12, NOTE_OFF, 13, NO_EVENT, NOTE_OFF],
[12, NOTE_OFF, 13, NO_EVENT, NOTE_OFF]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, gap_bars=1, min_unique_pitches=2,
ignore_polyphonic_notes=True)
melodies = sorted([list(melody) for melody in melodies])
self.assertEqual(expected, melodies)
def testExtractMelodiesMelodyTooLongWithPad(self):
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 127, 2, 4), (14, 50, 6, 15)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 18)])
expected = [[NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 14,
NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, max_steps_truncate=14,
max_steps_discard=18, gap_bars=1, min_unique_pitches=2,
ignore_polyphonic_notes=True, pad_end=True)
melodies = [list(melody) for melody in melodies]
self.assertEqual(expected, melodies)
def testExtractMelodiesTooFewPitches(self):
# Test that extract_melodies discards melodies with too few pitches where
# pitches are equivalent by octave.
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 0, 1), (13, 100, 1, 2), (18, 100, 2, 3),
(24, 100, 3, 4), (25, 100, 4, 5)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 100, 0, 1), (13, 100, 1, 2), (18, 100, 2, 3),
(25, 100, 3, 4), (26, 100, 4, 5)])
expected = [[12, 13, 18, 25, 26]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, gap_bars=1, min_unique_pitches=4,
ignore_polyphonic_notes=True)
melodies = [list(melody) for melody in melodies]
self.assertEqual(expected, melodies)
def testDeepcopy(self):
quantized = sequences_lib.QuantizedSequence()
testing_lib.add_track(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.from_note_sequence(self.note_sequence,
self.steps_per_quarter)
quantized_copy = quantized.deepcopy()
self.assertEqual(quantized, quantized_copy)
testing_lib.add_quantized_track(self.quantized, 1, [(12, 100, 4, 20),
(19, 100, 8, 16),
(24, 100, 12, 14)])
self.assertNotEqual(quantized, quantized_copy)
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 testExtractMelodiesTooFewPitches(self):
# Test that extract_melodies discards melodies with too few pitches where
# pitches are equivalent by octave.
self.quantized_sequence.steps_per_beat = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 0, 1), (13, 100, 1, 2), (18, 100, 2, 3),
(24, 100, 3, 4), (25, 100, 4, 5)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 100, 0, 1), (13, 100, 1, 2), (18, 100, 2, 3),
(25, 100, 3, 4), (26, 100, 4, 5)])
expected = [[12, 13, 18, 25, 26, NOTE_OFF]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, gap_bars=1, min_unique_pitches=4,
ignore_polyphonic_notes=True)
melodies = [list(melody) for melody in melodies]
self.assertEqual(expected, melodies)
def testExtractMultipleMelodiesFromSameTrack(self):
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 11)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8),
(50, 100, 33, 37), (52, 100, 34, 37)])
expected = [[NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 11,
NO_EVENT, NO_EVENT, NO_EVENT, NO_EVENT],
[NO_EVENT, NO_EVENT, 12, NO_EVENT, NOTE_OFF, NO_EVENT, 14,
NO_EVENT],
[NO_EVENT, 50, 52, NO_EVENT, NO_EVENT]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, gap_bars=2, min_unique_pitches=2,
ignore_polyphonic_notes=True)
melodies = sorted([list(melody) for melody in melodies])
self.assertEqual(expected, melodies)
def testExtractMultipleMelodiesFromSameTrack(self):
self.quantized_sequence.steps_per_beat = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 7)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8),
(50, 100, 33, 37), (52, 100, 34, 36)])
expected = [[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],
[NO_EVENT, 50, 52, NO_EVENT, NOTE_OFF]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, gap_bars=2, min_unique_pitches=2,
ignore_polyphonic_notes=True)
melodies = sorted([list(melody) for melody in melodies])
self.assertEqual(expected, melodies)
def testExtractMelodiesSimple(self):
self.quantized_sequence.steps_per_beat = 1
testing_lib.add_quantized_track(
self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 7)])
testing_lib.add_quantized_track(
self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8)])
expected = [[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]]
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence, min_bars=1, gap_bars=1, min_unique_pitches=2,
ignore_polyphonic_notes=True)
self.assertEqual(2, len(melodies))
self.assertTrue(isinstance(melodies[0], melodies_lib.MonophonicMelody))
self.assertTrue(isinstance(melodies[1], melodies_lib.MonophonicMelody))
melodies = sorted([list(melody) for melody in melodies])
self.assertEqual(expected, melodies)
def testExtractChordsForMelodies(self):
self.quantized_sequence.steps_per_quarter = 1
testing_lib.add_quantized_track(self.quantized_sequence, 0,
[(12, 100, 2, 4), (11, 1, 6, 11)])
testing_lib.add_quantized_track(self.quantized_sequence, 1,
[(12, 127, 2, 4), (14, 50, 6, 8),
(50, 100, 33, 37), (52, 100, 34, 37)])
testing_lib.add_quantized_chords(self.quantized_sequence,
[('C', 2), ('G7', 6), ('Cmaj7', 33)])
melodies, _ = melodies_lib.extract_melodies(
self.quantized_sequence,
min_bars=1,
gap_bars=2,
min_unique_pitches=2,
ignore_polyphonic_notes=True)
chord_progressions, _ = chords_lib.extract_chords_for_melodies(
self.quantized_sequence, melodies)
expected = [[
NO_CHORD, NO_CHORD, 'C', 'C', 'C', 'C', 'G7', 'G7', 'G7', 'G7',
'G7'
], [NO_CHORD, NO_CHORD, 'C', 'C', 'C', 'C', 'G7', 'G7'],
['G7', 'Cmaj7', 'Cmaj7', 'Cmaj7', 'Cmaj7']]
self.assertEqual(expected,
[list(chords) for chords in chord_progressions])
def testMultiTrack(self):
testing_lib.add_track(self.note_sequence, 0, [(12, 100, 1.0, 4.0),
(19, 100, 0.95, 3.0)])
testing_lib.add_track(self.note_sequence, 3, [(12, 100, 1.0, 4.0),
(19, 100, 2.0, 5.0)])
testing_lib.add_track(self.note_sequence, 7, [(12, 100, 1.0, 5.0),
(19, 100, 2.0, 4.0),
(24, 100, 3.0, 3.5)])
testing_lib.add_quantized_track(self.expected_quantized_sequence, 0,
[(12, 100, 4, 16), (19, 100, 4, 12)])
testing_lib.add_quantized_track(self.expected_quantized_sequence, 3,
[(12, 100, 4, 16), (19, 100, 8, 20)])
testing_lib.add_quantized_track(self.expected_quantized_sequence, 7,
[(12, 100, 4, 20), (19, 100, 8, 16),
(24, 100, 12, 14)])
quantized = sequences_lib.QuantizedSequence()
quantized.from_note_sequence(self.note_sequence, self.steps_per_beat)
self.assertEqual(self.expected_quantized_sequence, quantized)
def testMultiTrack(self):
testing_lib.add_track(
self.note_sequence, 0,
[(12, 100, 1.0, 4.0), (19, 100, 0.95, 3.0)])
testing_lib.add_track(
self.note_sequence, 3,
[(12, 100, 1.0, 4.0), (19, 100, 2.0, 5.0)])
testing_lib.add_track(
self.note_sequence, 7,
[(12, 100, 1.0, 5.0), (19, 100, 2.0, 4.0), (24, 100, 3.0, 3.5)])
testing_lib.add_quantized_track(
self.expected_quantized_sequence, 0,
[(12, 100, 4, 16), (19, 100, 4, 12)])
testing_lib.add_quantized_track(
self.expected_quantized_sequence, 3,
[(12, 100, 4, 16), (19, 100, 8, 20)])
testing_lib.add_quantized_track(
self.expected_quantized_sequence, 7,
[(12, 100, 4, 20), (19, 100, 8, 16), (24, 100, 12, 14)])
quantized = sequences_lib.QuantizedSequence()
quantized.from_note_sequence(self.note_sequence, self.steps_per_beat)
self.assertEqual(self.expected_quantized_sequence, quantized)
def testEq(self):
left_hand = sequences_lib.QuantizedSequence()
left_hand.bpm = 123.0
left_hand.steps_per_beat = 7
left_hand.time_signature = sequences_lib.TimeSignature(7, 8)
testing_lib.add_quantized_track(left_hand, 0, [(12, 100, 0, 40),
(11, 100, 1, 2)])
testing_lib.add_quantized_track(left_hand, 2, [(55, 100, 4, 6),
(14, 120, 4, 10)])
testing_lib.add_quantized_track(left_hand, 3, [(1, 10, 0, 6),
(2, 50, 20, 21),
(0, 101, 17, 21)])
right_hand = sequences_lib.QuantizedSequence()
right_hand.bpm = 123.0
right_hand.steps_per_beat = 7
right_hand.time_signature = sequences_lib.TimeSignature(7, 8)
testing_lib.add_quantized_track(right_hand, 0, [(11, 100, 1, 2),
(12, 100, 0, 40)])
testing_lib.add_quantized_track(right_hand, 2, [(14, 120, 4, 10),
(55, 100, 4, 6)])
testing_lib.add_quantized_track(right_hand, 3, [(0, 101, 17, 21),
(2, 50, 20, 21),
(1, 10, 0, 6)])
self.assertEqual(left_hand, right_hand)
def testEq(self):
left_hand = sequences_lib.QuantizedSequence()
left_hand.bpm = 123.0
left_hand.steps_per_beat = 7
left_hand.time_signature = sequences_lib.TimeSignature(7, 8)
testing_lib.add_quantized_track(
left_hand, 0,
[(12, 100, 0, 40), (11, 100, 1, 2)])
testing_lib.add_quantized_track(
left_hand, 2,
[(55, 100, 4, 6), (14, 120, 4, 10)])
testing_lib.add_quantized_track(
left_hand, 3,
[(1, 10, 0, 6), (2, 50, 20, 21), (0, 101, 17, 21)])
right_hand = sequences_lib.QuantizedSequence()
right_hand.bpm = 123.0
right_hand.steps_per_beat = 7
right_hand.time_signature = sequences_lib.TimeSignature(7, 8)
testing_lib.add_quantized_track(
right_hand, 0,
[(11, 100, 1, 2), (12, 100, 0, 40)])
testing_lib.add_quantized_track(
right_hand, 2,
[(14, 120, 4, 10), (55, 100, 4, 6)])
testing_lib.add_quantized_track(
right_hand, 3,
[(0, 101, 17, 21), (2, 50, 20, 21), (1, 10, 0, 6)])
self.assertEqual(left_hand, right_hand)