Module note_seq.chord_inference_test
Tests for chord_inference.
Expand source code
# Copyright 2021 The Magenta Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tests for chord_inference."""
from absl.testing import absltest
from note_seq import chord_inference
from note_seq import sequences_lib
from note_seq import testing_lib
from note_seq.protobuf import music_pb2
CHORD_SYMBOL = music_pb2.NoteSequence.TextAnnotation.CHORD_SYMBOL
class ChordInferenceTest(absltest.TestCase):
def testSequenceNotePitchVectors(self):
sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
sequence, 0,
[(60, 100, 0.0, 0.0), (62, 100, 0.0, 0.5),
(60, 100, 1.5, 2.5),
(64, 100, 2.0, 2.5), (67, 100, 2.25, 2.75), (70, 100, 2.5, 4.5),
(60, 100, 6.0, 6.0),
])
note_pitch_vectors = chord_inference.sequence_note_pitch_vectors(
sequence, seconds_per_frame=1.0)
expected_note_pitch_vectors = [
[0.0, 0.0, 1.0, 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],
[0.5, 0.0, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 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, 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],
]
self.assertEqual(expected_note_pitch_vectors, note_pitch_vectors.tolist())
def testSequenceNotePitchVectorsVariableLengthFrames(self):
sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
sequence, 0,
[(60, 100, 0.0, 0.0), (62, 100, 0.0, 0.5),
(60, 100, 1.5, 2.5),
(64, 100, 2.0, 2.5), (67, 100, 2.25, 2.75), (70, 100, 2.5, 4.5),
(60, 100, 6.0, 6.0),
])
note_pitch_vectors = chord_inference.sequence_note_pitch_vectors(
sequence, seconds_per_frame=[1.5, 2.0, 3.0, 5.0])
expected_note_pitch_vectors = [
[0.0, 0.0, 1.0, 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],
[0.5, 0.0, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 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],
]
self.assertEqual(expected_note_pitch_vectors, note_pitch_vectors.tolist())
def testInferChordsForSequence(self):
sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
sequence, 0,
[(60, 100, 0.0, 1.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), # C
(62, 100, 1.0, 2.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), # Dm
(60, 100, 2.0, 3.0), (65, 100, 2.0, 3.0), (69, 100, 2.0, 3.0), # F
(59, 100, 3.0, 4.0), (62, 100, 3.0, 4.0), (67, 100, 3.0, 4.0)]) # G
quantized_sequence = sequences_lib.quantize_note_sequence(
sequence, steps_per_quarter=4)
chord_inference.infer_chords_for_sequence(
quantized_sequence, chords_per_bar=2)
expected_chords = [('C', 0.0), ('Dm', 1.0), ('F', 2.0), ('G', 3.0)]
chords = [(ta.text, ta.time) for ta in quantized_sequence.text_annotations]
self.assertEqual(expected_chords, chords)
def testInferChordsForSequenceAddKeySignatures(self):
sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
sequence, 0,
[(60, 100, 0.0, 1.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), # C
(62, 100, 1.0, 2.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), # Dm
(60, 100, 2.0, 3.0), (65, 100, 2.0, 3.0), (69, 100, 2.0, 3.0), # F
(59, 100, 3.0, 4.0), (62, 100, 3.0, 4.0), (67, 100, 3.0, 4.0), # G
(66, 100, 4.0, 5.0), (70, 100, 4.0, 5.0), (73, 100, 4.0, 5.0), # F#
(68, 100, 5.0, 6.0), (71, 100, 5.0, 6.0), (75, 100, 5.0, 6.0), # G#m
(66, 100, 6.0, 7.0), (71, 100, 6.0, 7.0), (75, 100, 6.0, 7.0), # B
(65, 100, 7.0, 8.0), (68, 100, 7.0, 8.0), (73, 100, 7.0, 8.0)]) # C#
quantized_sequence = sequences_lib.quantize_note_sequence(
sequence, steps_per_quarter=4)
chord_inference.infer_chords_for_sequence(
quantized_sequence, chords_per_bar=2, add_key_signatures=True)
expected_key_signatures = [(0, 0.0), (6, 4.0)]
key_signatures = [(ks.key, ks.time)
for ks in quantized_sequence.key_signatures]
self.assertEqual(expected_key_signatures, key_signatures)
def testInferChordsForSequenceWithBeats(self):
sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
sequence, 0,
[(60, 100, 0.0, 1.1), (64, 100, 0.0, 1.1), (67, 100, 0.0, 1.1), # C
(62, 100, 1.1, 1.9), (65, 100, 1.1, 1.9), (69, 100, 1.1, 1.9), # Dm
(60, 100, 1.9, 3.0), (65, 100, 1.9, 3.0), (69, 100, 1.9, 3.0), # F
(59, 100, 3.0, 4.5), (62, 100, 3.0, 4.5), (67, 100, 3.0, 4.5)]) # G
testing_lib.add_beats_to_sequence(sequence, [0.0, 1.1, 1.9, 1.9, 3.0])
chord_inference.infer_chords_for_sequence(sequence)
expected_chords = [('C', 0.0), ('Dm', 1.1), ('F', 1.9), ('G', 3.0)]
chords = [(ta.text, ta.time) for ta in sequence.text_annotations
if ta.annotation_type == CHORD_SYMBOL]
self.assertEqual(expected_chords, chords)
if __name__ == '__main__':
absltest.main()
Classes
class ChordInferenceTest (*args, **kwargs)
-
Extension of unittest.TestCase providing more power.
Create an instance of the class that will use the named test method when executed. Raises a ValueError if the instance does not have a method with the specified name.
Expand source code
class ChordInferenceTest(absltest.TestCase): def testSequenceNotePitchVectors(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 0.0), (62, 100, 0.0, 0.5), (60, 100, 1.5, 2.5), (64, 100, 2.0, 2.5), (67, 100, 2.25, 2.75), (70, 100, 2.5, 4.5), (60, 100, 6.0, 6.0), ]) note_pitch_vectors = chord_inference.sequence_note_pitch_vectors( sequence, seconds_per_frame=1.0) expected_note_pitch_vectors = [ [0.0, 0.0, 1.0, 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], [0.5, 0.0, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 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, 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], ] self.assertEqual(expected_note_pitch_vectors, note_pitch_vectors.tolist()) def testSequenceNotePitchVectorsVariableLengthFrames(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 0.0), (62, 100, 0.0, 0.5), (60, 100, 1.5, 2.5), (64, 100, 2.0, 2.5), (67, 100, 2.25, 2.75), (70, 100, 2.5, 4.5), (60, 100, 6.0, 6.0), ]) note_pitch_vectors = chord_inference.sequence_note_pitch_vectors( sequence, seconds_per_frame=[1.5, 2.0, 3.0, 5.0]) expected_note_pitch_vectors = [ [0.0, 0.0, 1.0, 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], [0.5, 0.0, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 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], ] self.assertEqual(expected_note_pitch_vectors, note_pitch_vectors.tolist()) def testInferChordsForSequence(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 1.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), # C (62, 100, 1.0, 2.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), # Dm (60, 100, 2.0, 3.0), (65, 100, 2.0, 3.0), (69, 100, 2.0, 3.0), # F (59, 100, 3.0, 4.0), (62, 100, 3.0, 4.0), (67, 100, 3.0, 4.0)]) # G quantized_sequence = sequences_lib.quantize_note_sequence( sequence, steps_per_quarter=4) chord_inference.infer_chords_for_sequence( quantized_sequence, chords_per_bar=2) expected_chords = [('C', 0.0), ('Dm', 1.0), ('F', 2.0), ('G', 3.0)] chords = [(ta.text, ta.time) for ta in quantized_sequence.text_annotations] self.assertEqual(expected_chords, chords) def testInferChordsForSequenceAddKeySignatures(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 1.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), # C (62, 100, 1.0, 2.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), # Dm (60, 100, 2.0, 3.0), (65, 100, 2.0, 3.0), (69, 100, 2.0, 3.0), # F (59, 100, 3.0, 4.0), (62, 100, 3.0, 4.0), (67, 100, 3.0, 4.0), # G (66, 100, 4.0, 5.0), (70, 100, 4.0, 5.0), (73, 100, 4.0, 5.0), # F# (68, 100, 5.0, 6.0), (71, 100, 5.0, 6.0), (75, 100, 5.0, 6.0), # G#m (66, 100, 6.0, 7.0), (71, 100, 6.0, 7.0), (75, 100, 6.0, 7.0), # B (65, 100, 7.0, 8.0), (68, 100, 7.0, 8.0), (73, 100, 7.0, 8.0)]) # C# quantized_sequence = sequences_lib.quantize_note_sequence( sequence, steps_per_quarter=4) chord_inference.infer_chords_for_sequence( quantized_sequence, chords_per_bar=2, add_key_signatures=True) expected_key_signatures = [(0, 0.0), (6, 4.0)] key_signatures = [(ks.key, ks.time) for ks in quantized_sequence.key_signatures] self.assertEqual(expected_key_signatures, key_signatures) def testInferChordsForSequenceWithBeats(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 1.1), (64, 100, 0.0, 1.1), (67, 100, 0.0, 1.1), # C (62, 100, 1.1, 1.9), (65, 100, 1.1, 1.9), (69, 100, 1.1, 1.9), # Dm (60, 100, 1.9, 3.0), (65, 100, 1.9, 3.0), (69, 100, 1.9, 3.0), # F (59, 100, 3.0, 4.5), (62, 100, 3.0, 4.5), (67, 100, 3.0, 4.5)]) # G testing_lib.add_beats_to_sequence(sequence, [0.0, 1.1, 1.9, 1.9, 3.0]) chord_inference.infer_chords_for_sequence(sequence) expected_chords = [('C', 0.0), ('Dm', 1.1), ('F', 1.9), ('G', 3.0)] chords = [(ta.text, ta.time) for ta in sequence.text_annotations if ta.annotation_type == CHORD_SYMBOL] self.assertEqual(expected_chords, chords)
Ancestors
- absl.testing.absltest.TestCase
- absl.third_party.unittest3_backport.case.TestCase
- unittest.case.TestCase
Methods
def testInferChordsForSequence(self)
-
Expand source code
def testInferChordsForSequence(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 1.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), # C (62, 100, 1.0, 2.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), # Dm (60, 100, 2.0, 3.0), (65, 100, 2.0, 3.0), (69, 100, 2.0, 3.0), # F (59, 100, 3.0, 4.0), (62, 100, 3.0, 4.0), (67, 100, 3.0, 4.0)]) # G quantized_sequence = sequences_lib.quantize_note_sequence( sequence, steps_per_quarter=4) chord_inference.infer_chords_for_sequence( quantized_sequence, chords_per_bar=2) expected_chords = [('C', 0.0), ('Dm', 1.0), ('F', 2.0), ('G', 3.0)] chords = [(ta.text, ta.time) for ta in quantized_sequence.text_annotations] self.assertEqual(expected_chords, chords)
def testInferChordsForSequenceAddKeySignatures(self)
-
Expand source code
def testInferChordsForSequenceAddKeySignatures(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 1.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), # C (62, 100, 1.0, 2.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), # Dm (60, 100, 2.0, 3.0), (65, 100, 2.0, 3.0), (69, 100, 2.0, 3.0), # F (59, 100, 3.0, 4.0), (62, 100, 3.0, 4.0), (67, 100, 3.0, 4.0), # G (66, 100, 4.0, 5.0), (70, 100, 4.0, 5.0), (73, 100, 4.0, 5.0), # F# (68, 100, 5.0, 6.0), (71, 100, 5.0, 6.0), (75, 100, 5.0, 6.0), # G#m (66, 100, 6.0, 7.0), (71, 100, 6.0, 7.0), (75, 100, 6.0, 7.0), # B (65, 100, 7.0, 8.0), (68, 100, 7.0, 8.0), (73, 100, 7.0, 8.0)]) # C# quantized_sequence = sequences_lib.quantize_note_sequence( sequence, steps_per_quarter=4) chord_inference.infer_chords_for_sequence( quantized_sequence, chords_per_bar=2, add_key_signatures=True) expected_key_signatures = [(0, 0.0), (6, 4.0)] key_signatures = [(ks.key, ks.time) for ks in quantized_sequence.key_signatures] self.assertEqual(expected_key_signatures, key_signatures)
def testInferChordsForSequenceWithBeats(self)
-
Expand source code
def testInferChordsForSequenceWithBeats(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 1.1), (64, 100, 0.0, 1.1), (67, 100, 0.0, 1.1), # C (62, 100, 1.1, 1.9), (65, 100, 1.1, 1.9), (69, 100, 1.1, 1.9), # Dm (60, 100, 1.9, 3.0), (65, 100, 1.9, 3.0), (69, 100, 1.9, 3.0), # F (59, 100, 3.0, 4.5), (62, 100, 3.0, 4.5), (67, 100, 3.0, 4.5)]) # G testing_lib.add_beats_to_sequence(sequence, [0.0, 1.1, 1.9, 1.9, 3.0]) chord_inference.infer_chords_for_sequence(sequence) expected_chords = [('C', 0.0), ('Dm', 1.1), ('F', 1.9), ('G', 3.0)] chords = [(ta.text, ta.time) for ta in sequence.text_annotations if ta.annotation_type == CHORD_SYMBOL] self.assertEqual(expected_chords, chords)
def testSequenceNotePitchVectors(self)
-
Expand source code
def testSequenceNotePitchVectors(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 0.0), (62, 100, 0.0, 0.5), (60, 100, 1.5, 2.5), (64, 100, 2.0, 2.5), (67, 100, 2.25, 2.75), (70, 100, 2.5, 4.5), (60, 100, 6.0, 6.0), ]) note_pitch_vectors = chord_inference.sequence_note_pitch_vectors( sequence, seconds_per_frame=1.0) expected_note_pitch_vectors = [ [0.0, 0.0, 1.0, 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], [0.5, 0.0, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 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, 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], ] self.assertEqual(expected_note_pitch_vectors, note_pitch_vectors.tolist())
def testSequenceNotePitchVectorsVariableLengthFrames(self)
-
Expand source code
def testSequenceNotePitchVectorsVariableLengthFrames(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.0, 0.0), (62, 100, 0.0, 0.5), (60, 100, 1.5, 2.5), (64, 100, 2.0, 2.5), (67, 100, 2.25, 2.75), (70, 100, 2.5, 4.5), (60, 100, 6.0, 6.0), ]) note_pitch_vectors = chord_inference.sequence_note_pitch_vectors( sequence, seconds_per_frame=[1.5, 2.0, 3.0, 5.0]) expected_note_pitch_vectors = [ [0.0, 0.0, 1.0, 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], [0.5, 0.0, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 0.0, 0.0, 0.5, 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], ] self.assertEqual(expected_note_pitch_vectors, note_pitch_vectors.tolist())