132 lines
5.9 KiB
Python
132 lines
5.9 KiB
Python
# Copyright 2016 Google Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Tests for consistency between PrettyMusic21 and NoteSequence proto."""
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import os
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# internal imports
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import music21
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import tensorflow as tf
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from magenta.music import pretty_music21
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from magenta.music.music21_to_note_sequence_io import _MUSIC21_TO_NOTE_SEQUENCE_MODE
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from magenta.music.music21_to_note_sequence_io import _PRETTY_MUSIC21_TO_NOTE_SEQUENCE_KEY_NAME
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from magenta.music.music21_to_note_sequence_io import music21_to_sequence_proto
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from magenta.music.music21_to_note_sequence_io import pretty_music21_to_sequence_proto
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from magenta.protobuf import music_pb2
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class Music21ScoretoNoteSequenceTest(tf.test.TestCase):
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def setUp(self):
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"""Get the file path to the test MusicXML file."""
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fname = 'bach-one_phrase-4_voices.xml'
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self.source_fpath = os.path.join(tf.resource_loader.get_data_files_path(),
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'testdata', fname)
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def testMusic21ToSequenceFromMusicXML(self):
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"""Test consistency between pretty_music21 and NoteSequence store of XML."""
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parser = music21.musicxml.xmlToM21.MusicXMLImporter()
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music21_score = parser.scoreFromFile(self.source_fpath)
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simple_score = pretty_music21.PrettyMusic21(
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music21_score, os.path.basename(self.source_fpath))
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sequence_proto = music21_to_sequence_proto(
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music21_score, os.path.basename(self.source_fpath))
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self.CompareNoteSequenceAndMusic21Score(sequence_proto, simple_score)
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def testPrettyMusic21ToSequenceFromMusicXML(self):
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"""Test consistency between pretty_music21 and NoteSequence store of XML."""
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parser = music21.musicxml.xmlToM21.MusicXMLImporter()
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music21_score = parser.scoreFromFile(self.source_fpath)
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simple_score = pretty_music21.PrettyMusic21(
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music21_score, os.path.basename(self.source_fpath))
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sequence_proto = pretty_music21_to_sequence_proto(
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simple_score, os.path.basename(self.source_fpath))
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self.CompareNoteSequenceAndMusic21Score(sequence_proto, simple_score)
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def testPrettyMusic21ToSequenceFromMusicXMLWithSourceFnamePassedToFormer(
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self):
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"""Test consistency between pretty_music21 and NoteSequence store of XML."""
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parser = music21.musicxml.xmlToM21.MusicXMLImporter()
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music21_score = parser.scoreFromFile(self.source_fpath)
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simple_score = pretty_music21.PrettyMusic21(
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music21_score, os.path.basename(self.source_fpath))
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sequence_proto = pretty_music21_to_sequence_proto(simple_score)
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self.assertEqual(sequence_proto.filename, simple_score.filename)
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def CompareNoteSequenceAndMusic21Score(self, sequence_proto, score):
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"""Compares a NoteSequence proto to a PrettyMusic21 object.
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Args:
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sequence_proto: A tensorflow.magenta.Sequence proto.
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score: A pretty_music21.PrettyMusic21 object.
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"""
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# Test score info.
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self.assertEqual(sequence_proto.source_info.parser,
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music_pb2.NoteSequence.SourceInfo.MUSIC21)
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self.assertEqual(sequence_proto.filename, score.filename)
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# Test time signature changes.
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self.assertEqual(
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len(score.time_signature_changes), len(sequence_proto.time_signatures))
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for score_time, sequence_time in zip(score.time_signature_changes,
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sequence_proto.time_signatures):
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self.assertEqual(score_time.numerator, sequence_time.numerator)
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self.assertEqual(score_time.denominator, sequence_time.denominator)
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self.assertAlmostEqual(score_time.time, sequence_time.time)
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# Test key signature changes.
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self.assertEqual(
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len(score.key_signature_changes), len(sequence_proto.key_signatures))
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for score_key, sequence_key in zip(score.key_signature_changes,
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sequence_proto.key_signatures):
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key_pitch_idx = _PRETTY_MUSIC21_TO_NOTE_SEQUENCE_KEY_NAME.values().index(
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sequence_key.key)
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self.assertEqual(
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score_key.key.upper(),
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_PRETTY_MUSIC21_TO_NOTE_SEQUENCE_KEY_NAME.keys()[key_pitch_idx])
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key_mode_idx = _MUSIC21_TO_NOTE_SEQUENCE_MODE.values().index(
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sequence_key.mode)
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self.assertEqual(score_key.mode,
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_MUSIC21_TO_NOTE_SEQUENCE_MODE.keys()[key_mode_idx])
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self.assertAlmostEqual(score_key.time, sequence_key.time)
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# Test tempos.
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self.assertEqual(len(score.tempo_changes), len(sequence_proto.tempos))
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for score_tempo, sequence_tempo in zip(score.tempo_changes,
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sequence_proto.tempos):
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self.assertAlmostEqual(score_tempo.qpm, sequence_tempo.qpm)
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self.assertAlmostEqual(score_tempo.time, sequence_tempo.time)
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# Test part info.
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self.assertEqual(len(score.part_infos), len(sequence_proto.part_infos))
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for score_part_infos, sequence_part_infos in zip(
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score.part_infos, sequence_proto.part_infos):
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self.assertEqual(score_part_infos.index, sequence_part_infos.part)
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self.assertEqual(score_part_infos.name, sequence_part_infos.name)
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# Test parts and notes.
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for score_note, sequence_note in zip(score.sorted_notes,
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sequence_proto.notes):
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self.assertAlmostEqual(score_note.pitch_midi, sequence_note.pitch)
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self.assertAlmostEqual(score_note.start_time, sequence_note.start_time)
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self.assertAlmostEqual(score_note.end_time, sequence_note.end_time)
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self.assertEqual(score_note.part_index, sequence_note.part)
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if __name__ == '__main__':
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tf.test.main()
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