def testQuantizer(self): steps_per_quarter = 4 note_sequence = common_testing_lib.parse_test_proto( music_pb2.NoteSequence, """ time_signatures: { numerator: 4 denominator: 4} tempos: { qpm: 60}""") testing_lib.add_track_to_sequence( 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_to_sequence( 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 checkFMajorScale(self, filename): """Verify MusicXML scale file. Verify that it contains the correct pitches (sounding pitch) and durations. Args: filename: file to test. """ # Expected QuantizedSequence # Sequence tuple = (midi_pitch, velocity, start_seconds, end_seconds) expected_quantized_sequence = sequences_lib.QuantizedSequence() expected_quantized_sequence.steps_per_quarter = self.steps_per_quarter expected_quantized_sequence.qpm = 120.0 expected_quantized_sequence.time_signature = ( sequences_lib.QuantizedSequence.TimeSignature(numerator=4, denominator=4)) testing_lib.add_quantized_track_to_sequence( expected_quantized_sequence, 0, [(65, 64, 0, 4), (67, 64, 4, 8), (69, 64, 8, 12), (70, 64, 12, 16), (72, 64, 16, 20), (74, 64, 20, 24), (76, 64, 24, 28), (77, 64, 28, 32)]) # Convert MusicXML to QuantizedSequence source_musicxml = musicxml_parser.MusicXMLDocument(filename) sequence_proto = musicxml_reader.musicxml_to_sequence_proto( source_musicxml) quantized = sequences_lib.QuantizedSequence() quantized.from_note_sequence(sequence_proto, self.steps_per_quarter) # Check equality self.assertEqual(expected_quantized_sequence, quantized)
def testExtractChordsForMelodiesCoincidentChords(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence(self.quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 11)]) testing_lib.add_quantized_track_to_sequence(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_to_sequence(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 testExtractChordsForMelodies(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence(self.quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 11)]) testing_lib.add_quantized_track_to_sequence(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_to_sequence(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 testQuantizer(self): steps_per_quarter = 4 note_sequence = common_testing_lib.parse_test_proto( music_pb2.NoteSequence, """ time_signatures: { numerator: 4 denominator: 4} tempos: { qpm: 60}""") testing_lib.add_track_to_sequence(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_to_sequence( 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_to_sequence( self.quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 11)]) testing_lib.add_quantized_track_to_sequence( 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_to_sequence( 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 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_to_sequence(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_to_sequence(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 testExtractLeadSheetFragmentsCoincidentChords(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 11)]) testing_lib.add_quantized_track_to_sequence( 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_to_sequence( self.quantized_sequence, [('C', 2), ('G7', 6), ('Cmaj7', 33), ('F', 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) # Last lead sheet should be rejected for coincident 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))
def testFromNotesPolyphonic(self): testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 100, 4, 16), (19, 100, 4, 12)]) melody = melodies_lib.Melody() 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 testExtractDrumTracksTooShort(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence(self.quantized_sequence, 0, [(12, 127, 2, 4), (14, 50, 6, 7)], is_drum=True) drum_tracks, _ = drums_lib.extract_drum_tracks(self.quantized_sequence, min_bars=2, gap_bars=1) drum_tracks = [list(drums) for drums in drum_tracks] self.assertEqual([], drum_tracks)
def testFromNotesTrimEmptyMeasures(self): testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 100, 6, 7), (11, 100, 8, 9)]) melody = melodies_lib.Melody() 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_to_sequence( 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_to_sequence( 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 testExtractDrumTracksLateStart(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence(self.quantized_sequence, 0, [(12, 100, 102, 103), (13, 100, 104, 106)], is_drum=True) expected = [[NO_DRUMS, NO_DRUMS, DRUMS(12), NO_DRUMS, DRUMS(13)]] drum_tracks, _ = drums_lib.extract_drum_tracks(self.quantized_sequence, min_bars=1, gap_bars=1) drum_tracks = sorted([list(drums) for drums in drum_tracks]) self.assertEqual(expected, drum_tracks)
def testFromNotesTimeOverlap(self): testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 100, 4, 8), (11, 100, 13, 15), (13, 100, 8, 16)]) melody = melodies_lib.Melody() 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 testFromNotesPolyphonicWithIgnorePolyphonicNotes(self): testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 100, 0, 8), (19, 100, 0, 12), (12, 100, 4, 12), (19, 100, 4, 16)]) melody = melodies_lib.Melody() 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) self.assertEqual(expected, list(melody)) self.assertEqual(16, melody.steps_per_bar)
def testFromQuantizedSequence(self): testing_lib.add_quantized_track_to_sequence( 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.Melody() 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_to_sequence( 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.Melody() 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 testFromNotesTrimEmptyMeasures(self): testing_lib.add_quantized_track_to_sequence(self.quantized_sequence, 0, [(12, 100, 6, 7), (11, 100, 8, 9)], is_drum=True) drums = drums_lib.DrumTrack() drums.from_quantized_sequence(self.quantized_sequence, start_step=0) expected = [ NO_DRUMS, NO_DRUMS, NO_DRUMS, NO_DRUMS, NO_DRUMS, NO_DRUMS, DRUMS(12), NO_DRUMS, DRUMS(11) ] self.assertEqual(expected, list(drums)) self.assertEqual(16, drums.steps_per_bar)
def testExtractMelodiesStatistics(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence( 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_to_sequence( self.quantized_sequence, 1, [(12, 127, 2, 4), (14, 50, 2, 8)]) testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 2, [(12, 127, 0, 1)]) testing_lib.add_quantized_track_to_sequence( 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_quarter = 1 testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 127, 2, 4), (14, 50, 6, 7)]) testing_lib.add_quantized_track_to_sequence( 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 testExtractDrumTracksTooLongDiscard(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence(self.quantized_sequence, 0, [(12, 127, 2, 4), (14, 50, 6, 15), (14, 50, 10, 15), (16, 100, 14, 19), (14, 100, 18, 19)], is_drum=True) drum_tracks, _ = drums_lib.extract_drum_tracks(self.quantized_sequence, min_bars=1, max_steps_discard=18, gap_bars=1) drum_tracks = [list(drums) for drums in drum_tracks] self.assertEqual([], drum_tracks)
def testExtractMelodiesLateStart(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 100, 102, 103), (13, 100, 104, 106)]) testing_lib.add_quantized_track_to_sequence( 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 testFromQuantizedSequenceNotCommonTimeSig(self): self.quantized_sequence.time_signature = ( sequences_lib.QuantizedSequence.TimeSignature(numerator=7, denominator=8)) testing_lib.add_quantized_track_to_sequence( 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.Melody() 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(14, melody.steps_per_bar)
def testDeepcopy(self): quantized = sequences_lib.QuantizedSequence() 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.from_note_sequence(self.note_sequence, self.steps_per_quarter) quantized_copy = copy.deepcopy(quantized) self.assertEqual(quantized, quantized_copy) testing_lib.add_quantized_track_to_sequence( quantized, 1, [(12, 100, 4, 20), (19, 100, 8, 16), (24, 100, 12, 14)]) self.assertNotEqual(quantized, quantized_copy)
def testExtractMelodiesMelodyTooLongWithPad(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 127, 2, 4), (14, 50, 6, 15)]) testing_lib.add_quantized_track_to_sequence( 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_to_sequence( 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_to_sequence( 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 testFromNotesStartAndEndStep(self): testing_lib.add_quantized_track_to_sequence(self.quantized_sequence, 0, [(12, 100, 4, 8), (11, 100, 9, 10), (13, 100, 13, 15), (14, 100, 19, 20), (15, 100, 21, 27)], is_drum=True) drums = drums_lib.DrumTrack() drums.from_quantized_sequence(self.quantized_sequence, start_step=18) expected = [ NO_DRUMS, NO_DRUMS, NO_DRUMS, DRUMS(14), NO_DRUMS, DRUMS(15) ] self.assertEqual(expected, list(drums)) self.assertEqual(16, drums.start_step) self.assertEqual(22, drums.end_step)
def testFromNoteSequence(self): 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)]) testing_lib.add_chords_to_sequence( self.note_sequence, [('B7', 0.22), ('Em9', 4.0)]) testing_lib.add_quantized_track_to_sequence( 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)]) testing_lib.add_quantized_chords_to_sequence( self.expected_quantized_sequence, [('B7', 1), ('Em9', 16)]) quantized = sequences_lib.QuantizedSequence() quantized.from_note_sequence(self.note_sequence, self.steps_per_quarter) self.assertEqual(self.expected_quantized_sequence, quantized)
def testExtractMultipleMelodiesFromSameTrack(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 11)]) testing_lib.add_quantized_track_to_sequence( 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 testExtractDrumTracksTooLongTruncate(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence(self.quantized_sequence, 0, [(12, 127, 2, 4), (14, 50, 6, 15), (14, 50, 10, 15), (16, 100, 14, 19)], is_drum=True) expected = [[ NO_DRUMS, NO_DRUMS, DRUMS(12), NO_DRUMS, NO_DRUMS, NO_DRUMS, DRUMS(14), NO_DRUMS, NO_DRUMS, NO_DRUMS, DRUMS(14), NO_DRUMS, NO_DRUMS, NO_DRUMS ]] drum_tracks, _ = drums_lib.extract_drum_tracks(self.quantized_sequence, min_bars=1, max_steps_truncate=14, gap_bars=1) drum_tracks = [list(drums) for drums in drum_tracks] self.assertEqual(expected, drum_tracks)
def testFilterDrums(self): testing_lib.add_track_to_sequence( self.note_sequence, 0, [(12, 100, 1.0, 4.0), (19, 100, 0.95, 3.0)]) testing_lib.add_track_to_sequence( self.note_sequence, 3, [(12, 100, 1.0, 4.0), (19, 100, 2.0, 5.0)]) # Make instrument 0 a drum. for note in self.note_sequence.notes: if note.instrument == 0: note.is_drum = True testing_lib.add_quantized_track_to_sequence( self.expected_quantized_sequence, 3, [(12, 100, 4, 16), (19, 100, 8, 20)]) quantized = sequences_lib.QuantizedSequence() quantized.from_note_sequence(self.note_sequence, self.steps_per_quarter) self.assertEqual(self.expected_quantized_sequence, quantized)
def testMelodyExtractor(self): quantized_sequence = sequences_lib.QuantizedSequence() quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence( quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 7)]) testing_lib.add_quantized_track_to_sequence( 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], [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 = pipelines_common.MelodyExtractor( min_bars=1, min_unique_pitches=1, gap_bars=1) self._unit_transform_test(unit, quantized_sequence, expected_melodies)
def testDrumsExtractor(self): quantized_sequence = sequences_lib.QuantizedSequence() quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence( quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 7), (12, 1, 6, 8)], is_drum=True) testing_lib.add_quantized_track_to_sequence( quantized_sequence, 1, [(12, 127, 2, 4), (14, 50, 6, 8)]) expected_events = [ [NO_DRUMS, NO_DRUMS, DRUMS(12), NO_DRUMS, NO_DRUMS, NO_DRUMS, DRUMS(11, 12)]] expected_drum_tracks = [] for events_list in expected_events: drums = drums_lib.DrumTrack( events_list, steps_per_quarter=1, steps_per_bar=4) expected_drum_tracks.append(drums) unit = drum_pipelines.DrumsExtractor(min_bars=1, gap_bars=1) self._unit_transform_test(unit, quantized_sequence, expected_drum_tracks)
def testExtractMelodiesSimple(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 7)]) testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 1, [(12, 127, 2, 4), (14, 50, 6, 9)]) expected = [[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, NO_EVENT]] 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.Melody)) self.assertTrue(isinstance(melodies[1], melodies_lib.Melody)) 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_to_sequence( self.quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 11)]) testing_lib.add_quantized_track_to_sequence( 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_to_sequence( 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 testExtractChordsForMelodiesCoincidentChords(self): self.quantized_sequence.steps_per_quarter = 1 testing_lib.add_quantized_track_to_sequence( self.quantized_sequence, 0, [(12, 100, 2, 4), (11, 1, 6, 11)]) testing_lib.add_quantized_track_to_sequence( 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_to_sequence( 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)