def test_empty_archive(self):
with tempfile.NamedTemporaryFile(suffix='.mxl') as temp_file:
z = zipfile.ZipFile(temp_file.name, 'w')
z.close()
with self.assertRaises(musicxml_reader.MusicXMLConversionError):
musicxml_reader.musicxml_file_to_sequence_proto(temp_file.name)
def test_unpitched_notes(self):
with self.assertRaises(musicxml_parser.UnpitchedNoteError):
musicxml_parser.MusicXMLDocument(os.path.join(
testing_lib.get_testdata_dir(), 'unpitched.xml'))
with self.assertRaises(musicxml_reader.MusicXMLConversionError):
musicxml_reader.musicxml_file_to_sequence_proto(os.path.join(
testing_lib.get_testdata_dir(), 'unpitched.xml'))
def test_empty_archive(self):
with tempfile.NamedTemporaryFile(suffix='.mxl') as temp_file:
z = zipfile.ZipFile(temp_file.name, 'w')
z.close()
with self.assertRaises(musicxml_reader.MusicXMLConversionError):
musicxml_reader.musicxml_file_to_sequence_proto(
temp_file.name)
def test_unpitched_notes(self):
with self.assertRaises(musicxml_parser.UnpitchedNoteException):
musicxml_parser.MusicXMLDocument(os.path.join(
tf.resource_loader.get_data_files_path(),
'testdata/unpitched.xml'))
with self.assertRaises(musicxml_reader.MusicXMLConversionError):
musicxml_reader.musicxml_file_to_sequence_proto(os.path.join(
tf.resource_loader.get_data_files_path(),
'testdata/unpitched.xml'))
def testcompressedmxlunicodefilename(self):
"""Test an MXL file containing a unicode filename within its zip archive."""
unicode_filename = os.path.join(
testing_lib.get_testdata_dir(), 'unicode_filename.mxl')
sequence = musicxml_reader.musicxml_file_to_sequence_proto(unicode_filename)
self.assertLen(sequence.notes, 8)
def test_empty_doc(self):
"""Verify that an empty doc can be parsed."""
xml = r"""<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE score-partwise PUBLIC
"-//Recordare//DTD MusicXML 3.0 Partwise//EN"
"http://www.musicxml.org/dtds/partwise.dtd">
<score-partwise version="3.0">
</score-partwise>
"""
with tempfile.NamedTemporaryFile() as temp_file:
temp_file.write(xml)
temp_file.flush()
ns = musicxml_reader.musicxml_file_to_sequence_proto(
temp_file.name)
expected_ns = common_testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
ticks_per_quarter: 220
source_info: {
source_type: SCORE_BASED
encoding_type: MUSIC_XML
parser: MAGENTA_MUSIC_XML
}
key_signatures {
key: C
time: 0
}
tempos {
qpm: 120.0
}
total_time: 0.0
""")
self.assertProtoEquals(expected_ns, ns)
def _xml_to_seq_proto(self, full_xml_path, seq_collection_name):
"""Converts an individual .xml file to a NoteSequence proto.
Args:
full_xml_path: the full path to the file to convert.
collection: name of collection to which to save.
Returns:
NoteSequence proto or None if the file could not be converted.
"""
if (full_xml_path.lower().endswith('.xml')
or full_xml_path.lower().endswith('.mxl')):
try:
sequence = musicxml_reader.musicxml_file_to_sequence_proto(
full_xml_path)
except musicxml_reader.MusicXMLConversionError as e:
print(
'INFO: Could not parse MusicXML file {}. It will be skipped. \
Error was: {}'.format(full_xml_path, e))
return None
sequence.collection_name = seq_collection_name
sequence.filename = os.path.basename(full_xml_path)
sequence.id = os.path.basename(full_xml_path)
return sequence
else:
print('INFO: Unable to find a converter for file {}'.format(
full_xml_path))
def convert_musicxml(root_dir, sub_dir, full_file_path):
"""Converts a musicxml file to a sequence proto.
Args:
root_dir: A string specifying the root directory for the files being
converted.
sub_dir: The directory being converted currently.
full_file_path: the full path to the file to convert.
Returns:
Either a NoteSequence proto or None if the file could not be converted.
"""
try:
sequence = musicxml_reader.musicxml_file_to_sequence_proto(full_file_path)
except musicxml_reader.MusicXMLConversionError as e:
tf.logging.warning(
'Could not parse MusicXML file %s. It will be skipped. Error was: %s',
full_file_path, e)
return None
sequence.collection_name = os.path.basename(root_dir)
sequence.filename = os.path.join(sub_dir, os.path.basename(full_file_path))
sequence.id = note_sequence_io.generate_note_sequence_id(
sequence.filename, sequence.collection_name, 'musicxml')
tf.logging.info('Converted MusicXML file %s.', full_file_path)
return sequence
def test_chord_symbols(self):
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.chord_symbols_filename)
chord_symbols = [(annotation.time, annotation.text)
for annotation in ns.text_annotations
if annotation.annotation_type == CHORD_SYMBOL]
chord_symbols = list(sorted(chord_symbols, key=operator.itemgetter(0)))
expected_beats_and_chords = [
(0.0, 'N.C.'),
(4.0, 'Cmaj7'),
(12.0, 'F6(add9)'),
(16.0, 'F#dim7/A'),
(20.0, 'Bm7b5'),
(24.0, 'E7(#9)'),
(28.0, 'A7(add9)(no3)'),
(32.0, 'Bbsus2'),
(36.0, 'Am(maj7)'),
(38.0, 'D13'),
(40.0, 'E5'),
(44.0, 'Caug')
]
# Adjust for 120 QPM.
expected_times_and_chords = [(beat / 2.0, chord)
for beat, chord in expected_beats_and_chords]
self.assertEqual(expected_times_and_chords, chord_symbols)
def convert_musicxml(root_dir, sub_dir, full_file_path):
"""Converts a musicxml file to a sequence proto.
Args:
root_dir: A string specifying the root directory for the files being
converted.
sub_dir: The directory being converted currently.
full_file_path: the full path to the file to convert.
Returns:
Either a NoteSequence proto or None if the file could not be converted.
"""
try:
sequence = musicxml_reader.musicxml_file_to_sequence_proto(
full_file_path)
except musicxml_reader.MusicXMLConversionError as e:
tf.logging.warning(
'Could not parse MusicXML file %s. It will be skipped. Error was: %s',
full_file_path, e)
return None
sequence.collection_name = os.path.basename(root_dir)
sequence.filename = os.path.join(sub_dir, os.path.basename(full_file_path))
sequence.id = note_sequence_io.generate_note_sequence_id(
sequence.filename, sequence.collection_name, 'musicxml')
tf.logging.info('Converted MusicXML file %s.', full_file_path)
return sequence
def testcompressedmxlunicodefilename(self):
"""Test an MXL file containing a unicode filename within its zip archive."""
unicode_filename = os.path.join(
tf.resource_loader.get_data_files_path(),
'testdata/unicode_filename.mxl')
sequence = musicxml_reader.musicxml_file_to_sequence_proto(unicode_filename)
self.assertEqual(len(sequence.notes), 8)
def convert_directory(root_dir, sub_dir, sequence_writer, recursive=False):
"""Converts MusicXMLs to NoteSequences and writes to `sequence_writer`.
MusicXML files found in the specified directory specified by the combination
of `root_dir` and `sub_dir` and converted to NoteSequence protos with the
basename of `root_dir` as the collection_name, and the relative path to the
MusicXML file from `root_dir` as the filename. If `recursive` is true,
recursively converts any subdirectories of the specified directory.
Args:
root_dir: A string specifying a root directory.
sub_dir: A string specifying a path to a directory under `root_dir` in which
to convert MusicXML contents.
sequence_writer: A NoteSequenceRecordWriter to write the resulting
NoteSequence protos to.
recursive: A boolean specifying whether or not recursively convert
MusicXMLs contained in subdirectories of the specified directory.
Returns:
The number of NoteSequence protos written as an integer.
"""
dir_to_convert = os.path.join(root_dir, sub_dir)
tf.logging.info("Converting MusicXML files in '%s'.", dir_to_convert)
files_in_dir = tf.gfile.ListDirectory(os.path.join(dir_to_convert))
recurse_sub_dirs = []
sequences_written = 0
sequences_skipped = 0
for file_in_dir in files_in_dir:
full_file_path = os.path.join(dir_to_convert, file_in_dir)
if tf.gfile.IsDirectory(full_file_path):
if recursive:
recurse_sub_dirs.append(os.path.join(sub_dir, file_in_dir))
continue
try:
sequence = musicxml_reader.musicxml_file_to_sequence_proto(
full_file_path)
except musicxml_reader.MusicXMLConversionError as e:
tf.logging.warning(
'Could not parse MusicXML file %s. It will be skipped. Error was: %s',
full_file_path, e)
sequences_skipped += 1
continue
sequence.collection_name = os.path.basename(root_dir)
sequence.filename = os.path.join(sub_dir, file_in_dir)
sequence.id = note_sequence_io.generate_note_sequence_id(
sequence.filename, sequence.collection_name, 'musicxml')
sequence_writer.write(sequence)
sequences_written += 1
tf.logging.info("Converted %d MusicXML files in '%s'.", sequences_written,
dir_to_convert)
tf.logging.info('Could not parse %d MusicXML files.', sequences_skipped)
for recurse_sub_dir in recurse_sub_dirs:
sequences_written += convert_directory(root_dir, recurse_sub_dir,
sequence_writer, recursive)
return sequences_written
def test_transposed_keysig(self):
xml = br"""<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE score-partwise PUBLIC
"-//Recordare//DTD MusicXML 3.0 Partwise//EN"
"http://www.musicxml.org/dtds/partwise.dtd">
<score-partwise version="3.0">
<part-list>
<score-part id="P1">
<part-name/>
</score-part>
</part-list>
<part id="P1">
<measure number="1">
<attributes>
<divisions>4</divisions>
<key>
<fifths>-3</fifths>
<mode>major</mode>
</key>
<time>
<beats>4</beats>
<beat-type>4</beat-type>
</time>
<clef>
<sign>G</sign>
<line>2</line>
</clef>
<transpose>
<diatonic>-5</diatonic>
<chromatic>-9</chromatic>
</transpose>
</attributes>
<note>
<pitch>
<step>G</step>
<octave>4</octave>
</pitch>
<duration>2</duration>
<voice>1</voice>
<type>quarter</type>
</note>
</measure>
</part>
</score-partwise>
"""
with tempfile.NamedTemporaryFile() as temp_file:
temp_file.write(xml)
temp_file.flush()
musicxml_parser.MusicXMLDocument(temp_file.name)
sequence = musicxml_reader.musicxml_file_to_sequence_proto(temp_file.name)
self.assertLen(sequence.key_signatures, 1)
self.assertEqual(music_pb2.NoteSequence.KeySignature.G_FLAT,
sequence.key_signatures[0].key)
def test_transposed_keysig(self):
xml = br"""<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE score-partwise PUBLIC
"-//Recordare//DTD MusicXML 3.0 Partwise//EN"
"http://www.musicxml.org/dtds/partwise.dtd">
<score-partwise version="3.0">
<part-list>
<score-part id="P1">
<part-name/>
</score-part>
</part-list>
<part id="P1">
<measure number="1">
<attributes>
<divisions>4</divisions>
<key>
<fifths>-3</fifths>
<mode>major</mode>
</key>
<time>
<beats>4</beats>
<beat-type>4</beat-type>
</time>
<clef>
<sign>G</sign>
<line>2</line>
</clef>
<transpose>
<diatonic>-5</diatonic>
<chromatic>-9</chromatic>
</transpose>
</attributes>
<note>
<pitch>
<step>G</step>
<octave>4</octave>
</pitch>
<duration>2</duration>
<voice>1</voice>
<type>quarter</type>
</note>
</measure>
</part>
</score-partwise>
"""
with tempfile.NamedTemporaryFile() as temp_file:
temp_file.write(xml)
temp_file.flush()
musicxml_parser.MusicXMLDocument(temp_file.name)
sequence = musicxml_reader.musicxml_file_to_sequence_proto(temp_file.name)
self.assertEqual(1, len(sequence.key_signatures))
self.assertEqual(music_pb2.NoteSequence.KeySignature.G_FLAT,
sequence.key_signatures[0].key)
def read_from_xml(xml_file):
"""Reads an xml file into a prettyMIDI object.
Args:
xml_file : str
path to a musicxml file
Returns:
a prettyMIDI object
"""
xml_note_sequence = musicxml_reader.musicxml_file_to_sequence_proto(
xml_file)
return magenta.music.sequence_proto_to_pretty_midi(xml_note_sequence)
def test_atonal_transposition(self):
"""Test that transposition works when changing instrument transposition.
This can occur within a single part in a score where the score
has no key signature / is atonal. Examples include changing from a
non-transposing instrument to a transposing one (ex. Flute to Bb Clarinet)
or vice versa, or changing among transposing instruments (ex. Bb Clarinet
to Eb Alto Saxophone).
"""
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.atonal_transposition_filename)
expected_ns = common_testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
ticks_per_quarter: 220
time_signatures: {
numerator: 4
denominator: 4
}
tempos: {
qpm: 120
}
key_signatures: {
}
part_infos {
part: 0
name: "Flute"
}
source_info: {
source_type: SCORE_BASED
encoding_type: MUSIC_XML
parser: MAGENTA_MUSIC_XML
}
total_time: 4.0
""")
expected_pitches = [72, 74, 76, 77, 79, 77, 76, 74]
time = 0
for pitch in expected_pitches:
note = expected_ns.notes.add()
note.pitch = pitch
note.start_time = time
time += .5
note.end_time = time
note.velocity = 64
note.numerator = 1
note.denominator = 4
note.voice = 1
self.maxDiff = None
self.assertProtoEquals(expected_ns, ns)
def test_incomplete_measures(self):
"""Test that incomplete measures have the correct time signature.
This can occur in pickup bars or incomplete measures. For example,
if the time signature in the MusicXML is 4/4, but the measure only
contains one quarter note, Magenta expects this pickup measure to have
a time signature of 1/4.
"""
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.time_signature_filename)
# One time signature per measure
self.assertEqual(len(ns.time_signatures), 10)
self.assertEqual(len(ns.key_signatures), 1)
self.assertEqual(len(ns.notes), 112)
def testFluteScale(self):
"""Verify properties of the flute scale."""
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.flute_scale_filename)
expected_ns = common_testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
ticks_per_quarter: 220
time_signatures: {
numerator: 4
denominator: 4
}
tempos: {
qpm: 120
}
key_signatures: {
key: F
}
source_info: {
source_type: SCORE_BASED
encoding_type: MUSIC_XML
parser: MAGENTA_MUSIC_XML
}
part_infos {
part: 0
name: "Flute"
}
total_time: 4.0
""")
expected_pitches = [65, 67, 69, 70, 72, 74, 76, 77]
time = 0
for pitch in expected_pitches:
note = expected_ns.notes.add()
note.part = 0
note.voice = 1
note.pitch = pitch
note.start_time = time
time += .5
note.end_time = time
note.velocity = 64
note.numerator = 1
note.denominator = 4
self.assertProtoEquals(expected_ns, ns)
def test_whole_measure_rest_forward(self):
"""Test that a whole measure rest can be encoded using <forward>.
A whole measure rest is usually encoded as a <note> with a duration
equal to that of a whole measure. An alternative encoding is to
use the <forward> element to advance the time cursor to a duration
equal to that of a whole measure. This implies a whole measure rest
when there are no <note> elements in this measure.
"""
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.whole_measure_rest_forward_filename)
expected_ns = testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
ticks_per_quarter: 220
time_signatures {
numerator: 4
denominator: 4
}
time_signatures {
time: 6.0
numerator: 2
denominator: 4
}
key_signatures {
}
tempos {
qpm: 120
}
notes {
pitch: 72
velocity: 64
end_time: 2.0
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 4.0
end_time: 6.0
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 60
velocity: 64
start_time: 6.0
end_time: 7.0
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 60
velocity: 64
start_time: 8.0
end_time: 9.0
numerator: 1
denominator: 2
voice: 1
}
total_time: 9.0
part_infos {
name: "Flute"
}
source_info {
source_type: SCORE_BASED
encoding_type: MUSIC_XML
parser: MAGENTA_MUSIC_XML
}
""")
self.assertProtoEquals(expected_ns, ns)
def test_whole_measure_rest_forward(self):
"""Test that a whole measure rest can be encoded using <forward>.
A whole measure rest is usually encoded as a <note> with a duration
equal to that of a whole measure. An alternative encoding is to
use the <forward> element to advance the time cursor to a duration
equal to that of a whole measure. This implies a whole measure rest
when there are no <note> elements in this measure.
"""
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.whole_measure_rest_forward_filename)
expected_ns = common_testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
ticks_per_quarter: 220
time_signatures {
numerator: 4
denominator: 4
}
time_signatures {
time: 6.0
numerator: 2
denominator: 4
}
key_signatures {
}
tempos {
qpm: 120
}
notes {
pitch: 72
velocity: 64
end_time: 2.0
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 4.0
end_time: 6.0
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 60
velocity: 64
start_time: 6.0
end_time: 7.0
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 60
velocity: 64
start_time: 8.0
end_time: 9.0
numerator: 1
denominator: 2
voice: 1
}
total_time: 9.0
part_infos {
name: "Flute"
}
source_info {
source_type: SCORE_BASED
encoding_type: MUSIC_XML
parser: MAGENTA_MUSIC_XML
}
""")
self.assertProtoEquals(expected_ns, ns)
def test_meter(self):
"""Test that meters are encoded properly.
Musical meters are expressed as a ratio of beats to divisions.
The MusicXML parser uses this ratio in lowest terms for timing
purposes. However, the meters should be in the actual terms
when appearing in a NoteSequence.
"""
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.meter_test_filename)
expected_ns = testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
ticks_per_quarter: 220
time_signatures {
numerator: 1
denominator: 4
}
time_signatures {
time: 0.5
numerator: 2
denominator: 4
}
time_signatures {
time: 1.5
numerator: 3
denominator: 4
}
time_signatures {
time: 3.0
numerator: 4
denominator: 4
}
time_signatures {
time: 5.0
numerator: 5
denominator: 4
}
time_signatures {
time: 7.5
numerator: 6
denominator: 4
}
time_signatures {
time: 10.5
numerator: 7
denominator: 4
}
time_signatures {
time: 14.0
numerator: 1
denominator: 8
}
time_signatures {
time: 14.25
numerator: 2
denominator: 8
}
time_signatures {
time: 14.75
numerator: 3
denominator: 8
}
time_signatures {
time: 15.5
numerator: 4
denominator: 8
}
time_signatures {
time: 16.5
numerator: 5
denominator: 8
}
time_signatures {
time: 17.75
numerator: 6
denominator: 8
}
time_signatures {
time: 19.25
numerator: 7
denominator: 8
}
time_signatures {
time: 21.0
numerator: 8
denominator: 8
}
time_signatures {
time: 23.0
numerator: 9
denominator: 8
}
time_signatures {
time: 25.25
numerator: 10
denominator: 8
}
time_signatures {
time: 27.75
numerator: 11
denominator: 8
}
time_signatures {
time: 30.5
numerator: 12
denominator: 8
}
time_signatures {
time: 33.5
numerator: 2
denominator: 2
}
time_signatures {
time: 35.5
numerator: 3
denominator: 2
}
time_signatures {
time: 38.5
numerator: 4
denominator: 2
}
time_signatures {
time: 42.5
numerator: 4
denominator: 4
}
time_signatures {
time: 44.5
numerator: 2
denominator: 2
}
key_signatures {
}
tempos {
qpm: 120
}
notes {
pitch: 72
velocity: 64
end_time: 0.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 0.5
end_time: 1.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 1.5
end_time: 3.0
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 3.0
end_time: 5.0
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 5.0
end_time: 6.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 6.5
end_time: 7.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 7.5
end_time: 9.0
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 9.0
end_time: 10.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 10.5
end_time: 12.0
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 12.0
end_time: 13.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 13.5
end_time: 14.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 14.0
end_time: 14.25
numerator: 1
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 14.25
end_time: 14.75
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 14.75
end_time: 15.5
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 15.5
end_time: 16.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 16.0
end_time: 16.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 16.5
end_time: 17.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 17.0
end_time: 17.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 17.5
end_time: 17.75
numerator: 1
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 17.75
end_time: 18.5
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 18.5
end_time: 19.25
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 19.25
end_time: 20.0
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 20.0
end_time: 20.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 20.5
end_time: 21.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 21.0
end_time: 21.75
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 21.75
end_time: 22.5
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 22.5
end_time: 23.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 23.0
end_time: 24.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 24.5
end_time: 25.25
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 25.25
end_time: 26.75
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 26.75
end_time: 27.25
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 27.25
end_time: 27.75
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 27.75
end_time: 29.25
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 29.25
end_time: 30.0
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 30.0
end_time: 30.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 30.5
end_time: 32.0
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 32.0
end_time: 33.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 33.5
end_time: 34.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 34.5
end_time: 35.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 35.5
end_time: 36.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 36.5
end_time: 37.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 37.5
end_time: 38.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 38.5
end_time: 40.5
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 40.5
end_time: 42.5
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 42.5
end_time: 44.5
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 44.5
end_time: 46.5
numerator: 1
denominator: 1
voice: 1
}
total_time: 46.5
part_infos {
name: "Flute"
}
source_info {
source_type: SCORE_BASED
encoding_type: MUSIC_XML
parser: MAGENTA_MUSIC_XML
}
""")
self.assertProtoEquals(expected_ns, ns)
def test_st_anne(self):
"""Verify properties of the St. Anne file.
The file contains 2 parts and 4 voices.
"""
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.st_anne_filename)
expected_ns = common_testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
ticks_per_quarter: 220
time_signatures {
numerator: 1
denominator: 4
}
time_signatures {
time: 0.5
numerator: 4
denominator: 4
}
time_signatures {
time: 2.5
numerator: 4
denominator: 4
}
time_signatures {
time: 4.5
numerator: 4
denominator: 4
}
time_signatures {
time: 6.5
numerator: 3
denominator: 4
}
time_signatures {
time: 8.0
numerator: 1
denominator: 4
}
time_signatures {
time: 8.5
numerator: 4
denominator: 4
}
time_signatures {
time: 10.5
numerator: 4
denominator: 4
}
time_signatures {
time: 12.5
numerator: 4
denominator: 4
}
time_signatures {
time: 14.5
numerator: 3
denominator: 4
}
tempos: {
qpm: 120
}
key_signatures: {
key: C
}
source_info: {
source_type: SCORE_BASED
encoding_type: MUSIC_XML
parser: MAGENTA_MUSIC_XML
}
part_infos {
part: 0
name: "Harpsichord"
}
part_infos {
part: 1
name: "Piano"
}
total_time: 16.0
""")
pitches_0_1 = [
(67, .5),
(64, .5),
(69, .5),
(67, .5),
(72, .5),
(72, .5),
(71, .5),
(72, .5),
(67, .5),
(72, .5),
(67, .5),
(69, .5),
(66, .5),
(67, 1.5),
(71, .5),
(72, .5),
(69, .5),
(74, .5),
(71, .5),
(72, .5),
(69, .5),
(71, .5),
(67, .5),
(69, .5),
(72, .5),
(74, .5),
(71, .5),
(72, 1.5),
]
pitches_0_2 = [
(60, .5),
(60, .5),
(60, .5),
(60, .5),
(64, .5),
(62, .5),
(62, .5),
(64, .5),
(64, .5),
(64, .5),
(64, .5),
(64, .5),
(62, .5),
(62, 1.5),
(62, .5),
(64, .5),
(60, .5),
(65, .5),
(62, .5),
(64, .75),
(62, .25),
(59, .5),
(60, .5),
(65, .5),
(64, .5),
(62, .5),
(62, .5),
(64, 1.5),
]
pitches_1_1 = [
(52, .5),
(55, .5),
(57, .5),
(60, .5),
(60, .5),
(57, .5),
(55, .5),
(55, .5),
(60, .5),
(60, .5),
(59, .5),
(57, .5),
(57, .5),
(59, 1.5),
(55, .5),
(55, .5),
(57, .5),
(57, .5),
(55, .5),
(55, .5),
(57, .5),
(56, .5),
(55, .5),
(53, .5),
(55, .5),
(57, .5),
(55, .5),
(55, 1.5),
]
pitches_1_2 = [
(48, .5),
(48, .5),
(53, .5),
(52, .5),
(57, .5),
(53, .5),
(55, .5),
(48, .5),
(48, .5),
(45, .5),
(52, .5),
(48, .5),
(50, .5),
(43, 1.5),
(55, .5),
(48, .5),
(53, .5),
(50, .5),
(55, .5),
(48, .5),
(53, .5),
(52, .5),
(52, .5),
(50, .5),
(48, .5),
(53, .5),
(55, .5),
(48, 1.5),
]
part_voice_instrument_program_pitches = [
(0, 1, 1, 7, pitches_0_1),
(0, 2, 1, 7, pitches_0_2),
(1, 1, 2, 1, pitches_1_1),
(1, 2, 2, 1, pitches_1_2),
]
for part, voice, instrument, program, pitches in (
part_voice_instrument_program_pitches):
time = 0
for pitch, duration in pitches:
note = expected_ns.notes.add()
note.part = part
note.voice = voice
note.pitch = pitch
note.start_time = time
time += duration
note.end_time = time
note.velocity = 64
note.instrument = instrument
note.program = program
if duration == .5:
note.numerator = 1
note.denominator = 4
if duration == .25:
note.numerator = 1
note.denominator = 8
if duration == .75:
note.numerator = 3
note.denominator = 8
if duration == 1.5:
note.numerator = 3
note.denominator = 4
expected_ns.notes.sort(
key=lambda note: (note.part, note.voice, note.start_time))
ns.notes.sort(
key=lambda note: (note.part, note.voice, note.start_time))
self.assertProtoEquals(expected_ns, ns)
def test_unmetered_music(self):
"""Test that time signatures are inserted for music without time signatures.
MusicXML does not require the use of time signatures. Music without
time signatures occur in medieval chant, cadenzas, and contemporary music.
"""
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.unmetered_filename)
expected_ns = common_testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
ticks_per_quarter: 220
time_signatures: {
numerator: 11
denominator: 8
}
tempos: {
qpm: 120
}
key_signatures: {
}
notes {
pitch: 72
velocity: 64
end_time: 0.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 74
velocity: 64
start_time: 0.5
end_time: 0.75
numerator: 1
denominator: 8
voice: 1
}
notes {
pitch: 76
velocity: 64
start_time: 0.75
end_time: 1.25
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 77
velocity: 64
start_time: 1.25
end_time: 1.75
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 79
velocity: 64
start_time: 1.75
end_time: 2.75
numerator: 1
denominator: 2
voice: 1
}
part_infos {
name: "Flute"
}
source_info: {
source_type: SCORE_BASED
encoding_type: MUSIC_XML
parser: MAGENTA_MUSIC_XML
}
total_time: 2.75
""")
self.maxDiff = None
self.assertProtoEquals(expected_ns, ns)
def test_meter(self):
"""Test that meters are encoded properly.
Musical meters are expressed as a ratio of beats to divisions.
The MusicXML parser uses this ratio in lowest terms for timing
purposes. However, the meters should be in the actual terms
when appearing in a NoteSequence.
"""
ns = musicxml_reader.musicxml_file_to_sequence_proto(
self.meter_test_filename)
expected_ns = common_testing_lib.parse_test_proto(
music_pb2.NoteSequence,
"""
ticks_per_quarter: 220
time_signatures {
numerator: 1
denominator: 4
}
time_signatures {
time: 0.5
numerator: 2
denominator: 4
}
time_signatures {
time: 1.5
numerator: 3
denominator: 4
}
time_signatures {
time: 3.0
numerator: 4
denominator: 4
}
time_signatures {
time: 5.0
numerator: 5
denominator: 4
}
time_signatures {
time: 7.5
numerator: 6
denominator: 4
}
time_signatures {
time: 10.5
numerator: 7
denominator: 4
}
time_signatures {
time: 14.0
numerator: 1
denominator: 8
}
time_signatures {
time: 14.25
numerator: 2
denominator: 8
}
time_signatures {
time: 14.75
numerator: 3
denominator: 8
}
time_signatures {
time: 15.5
numerator: 4
denominator: 8
}
time_signatures {
time: 16.5
numerator: 5
denominator: 8
}
time_signatures {
time: 17.75
numerator: 6
denominator: 8
}
time_signatures {
time: 19.25
numerator: 7
denominator: 8
}
time_signatures {
time: 21.0
numerator: 8
denominator: 8
}
time_signatures {
time: 23.0
numerator: 9
denominator: 8
}
time_signatures {
time: 25.25
numerator: 10
denominator: 8
}
time_signatures {
time: 27.75
numerator: 11
denominator: 8
}
time_signatures {
time: 30.5
numerator: 12
denominator: 8
}
time_signatures {
time: 33.5
numerator: 2
denominator: 2
}
time_signatures {
time: 35.5
numerator: 3
denominator: 2
}
time_signatures {
time: 38.5
numerator: 4
denominator: 2
}
time_signatures {
time: 42.5
numerator: 4
denominator: 4
}
time_signatures {
time: 44.5
numerator: 2
denominator: 2
}
key_signatures {
}
tempos {
qpm: 120
}
notes {
pitch: 72
velocity: 64
end_time: 0.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 0.5
end_time: 1.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 1.5
end_time: 3.0
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 3.0
end_time: 5.0
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 5.0
end_time: 6.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 6.5
end_time: 7.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 7.5
end_time: 9.0
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 9.0
end_time: 10.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 10.5
end_time: 12.0
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 12.0
end_time: 13.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 13.5
end_time: 14.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 14.0
end_time: 14.25
numerator: 1
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 14.25
end_time: 14.75
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 14.75
end_time: 15.5
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 15.5
end_time: 16.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 16.0
end_time: 16.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 16.5
end_time: 17.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 17.0
end_time: 17.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 17.5
end_time: 17.75
numerator: 1
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 17.75
end_time: 18.5
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 18.5
end_time: 19.25
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 19.25
end_time: 20.0
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 20.0
end_time: 20.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 20.5
end_time: 21.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 21.0
end_time: 21.75
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 21.75
end_time: 22.5
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 22.5
end_time: 23.0
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 23.0
end_time: 24.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 24.5
end_time: 25.25
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 25.25
end_time: 26.75
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 26.75
end_time: 27.25
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 27.25
end_time: 27.75
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 27.75
end_time: 29.25
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 29.25
end_time: 30.0
numerator: 3
denominator: 8
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 30.0
end_time: 30.5
numerator: 1
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 30.5
end_time: 32.0
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 32.0
end_time: 33.5
numerator: 3
denominator: 4
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 33.5
end_time: 34.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 34.5
end_time: 35.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 35.5
end_time: 36.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 36.5
end_time: 37.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 37.5
end_time: 38.5
numerator: 1
denominator: 2
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 38.5
end_time: 40.5
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 40.5
end_time: 42.5
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 42.5
end_time: 44.5
numerator: 1
denominator: 1
voice: 1
}
notes {
pitch: 72
velocity: 64
start_time: 44.5
end_time: 46.5
numerator: 1
denominator: 1
voice: 1
}
total_time: 46.5
part_infos {
name: "Flute"
}
source_info {
source_type: SCORE_BASED
encoding_type: MUSIC_XML
parser: MAGENTA_MUSIC_XML
}
""")
self.assertProtoEquals(expected_ns, ns)
