def convert_line(line,
tempo=Tempo(60, Duration(1, 4)),
time_signature=TimeSignature(4, Duration(1, 4)),
channel_assignments=None,
fps=42100):
"""
Static method to convert a Line to a midi file
Args:
:param line: Class Line object
:param tempo: Tempo for playback, default is 60 BPM tempo beat = quarter note
:param time_signature: TimeSiganture on playback, default is 4 quarter notes
:param channel_assignments:
:param fps: frames per second setting
"""
score = Score()
tempo_sequence = score.tempo_sequence
tempo_sequence.add(TempoEvent(tempo, Position(0)))
ts_sequence = score.time_signature_sequence
ts_sequence.add(TimeSignatureEvent(time_signature, Position(0)))
c = InstrumentCatalog.instance()
piano = c.get_instrument("piano")
piano_instrument_voice = InstrumentVoice(piano, 1)
piano_voice = piano_instrument_voice.voice(0)
piano_voice.pin(line, Offset(0))
score.add_instrument_voice(piano_instrument_voice)
return ScoreToVstMidiConverter.convert_score(score,
channel_assignments, fps)
def test_basic_setup(self):
c = InstrumentCatalog.instance()
score = Score()
violin = c.get_instrument("violin")
violin_instrument_voice = InstrumentVoice(violin, 5)
score.add_instrument_voice(violin_instrument_voice)
trumpet = c.get_instrument("trumpet")
trumpet_instrument_voice = InstrumentVoice(trumpet)
score.add_instrument_voice(trumpet_instrument_voice)
clarinet = c.get_instrument("clarinet")
clarinet_instrument_voice = InstrumentVoice(clarinet)
score.add_instrument_voice(clarinet_instrument_voice)
voices = score.instrument_voices
assert len(voices) == 3
classes = score.instrument_classes
assert len(classes) == 3
assert TestScore.has_class(classes, 'strings')
assert TestScore.has_class(classes, 'woodwinds')
assert TestScore.has_class(classes, 'brass')
score.remove_instrument_voice(trumpet_instrument_voice)
classes = score.instrument_classes
assert len(classes) == 2
assert TestScore.has_class(classes, 'strings')
assert TestScore.has_class(classes, 'woodwinds')
def test_book_example(self):
score = Score()
# set up 3 instrument voices: 2 violins, 1 trumpet, 1 clarinet
catalogue = InstrumentCatalog.instance()
score.add_instrument_voice(
InstrumentVoice(catalogue.get_instrument("violin"), 2))
score.add_instrument_voice(
InstrumentVoice(catalogue.get_instrument("trumpet")))
score.add_instrument_voice(
InstrumentVoice(catalogue.get_instrument("clarinet")))
# 1 beat == 1 sec, 3/4 TS + 60 beats per minute,
score.tempo_sequence.add(TempoEvent(Tempo(60), Position(0)))
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
# set up some notes in the two violins
violin_voice = score.get_instrument_voice("violin")[0]
violin_voice.voice(0).pin(
Line([Note(DiatonicPitch(4, y), Duration(1, 8))
for y in 'afdecd']))
violin_voice.voice(0).pin(
Line([Note(DiatonicPitch(4, y), Duration(1, 4)) for y in 'cdc']))
def test_tempo_change(self):
c = InstrumentCatalog.instance()
score = Score()
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
score.tempo_sequence.add(
TempoEvent(Tempo(120, Duration(1, 4)), Position(0)))
score.tempo_sequence.add(
TempoEvent(Tempo(60, Duration(1, 4)), Position(1)))
score.tempo_sequence.add(
TempoEvent(Tempo(30, Duration(1, 4)), Position(2)))
violin = c.get_instrument("violin")
violin_instrument_voice = InstrumentVoice(violin, 1)
violin_voice_0 = violin_instrument_voice.voice(0)
assert violin_voice_0
score.add_instrument_voice(violin_instrument_voice)
violin_voice_0.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.F), Position(0)))
# Add notes to the score
vnote0 = Note(DiatonicPitch(4, 'a'), Duration(1, 4))
vnote1 = Note(DiatonicPitch(4, 'b'), Duration(1, 4))
vnote2 = Note(DiatonicPitch(5, 'c'), Duration(1, 4))
vnote3 = Note(DiatonicPitch(5, 'd'), Duration(1, 4))
vnote4 = Note(DiatonicPitch(4, 'a'), Duration(1, 4))
vnote5 = Note(DiatonicPitch(4, 'b'), Duration(1, 4))
vnote6 = Note(DiatonicPitch(5, 'c'), Duration(1, 4))
vnote7 = Note(DiatonicPitch(5, 'd'), Duration(1, 4))
vnote8 = Note(DiatonicPitch(4, 'a'), Duration(1, 4))
vnote9 = Note(DiatonicPitch(4, 'b'), Duration(1, 4))
vnote10 = Note(DiatonicPitch(5, 'c'), Duration(1, 4))
vnote11 = Note(DiatonicPitch(5, 'd'), Duration(1, 4))
# Set up a violin voice with 6 8th notes
vline_0 = Line([
vnote0, vnote1, vnote2, vnote3, vnote4, vnote5, vnote6, vnote7,
vnote8, vnote9, vnote10, vnote11
])
violin_voice_0.pin(vline_0)
# Set up a violin voice with 6 8th notes
vline_1 = Line([vnote0, vnote1, vnote2, vnote3])
violin_voice_0.pin(vline_1)
smc = ScoreToMidiConverter(score)
smc.create('score_tempo_change_file.mid')
TestScoreToMidiConverter.read_midi_file('score_tempo_change_file.mid')
def test_adding_notes(self):
score = Score()
# set up 3 instrument voices: 2 violins, 1 trumpet, 1 clarinet
catalogue = InstrumentCatalog.instance()
score.add_instrument_voice(
InstrumentVoice(catalogue.get_instrument("violin"), 2))
# 1 beat == 1 sec, 3/4 TS + 60 beats per minute,
score.tempo_sequence.add(TempoEvent(Tempo(60), Position(0)))
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
violin_voice = score.get_instrument_voice("violin")[0]
line = Line([Note(DiatonicPitch(4, y), Duration(1, 8)) for y in 'afd'])
violin_voice.voice(0).pin(line)
notes = violin_voice.get_all_notes()
for n in notes:
print(n)
line.append(Note(DiatonicPitch(4, 'g'), Duration(1, 8)))
notes = violin_voice.get_all_notes()
for n in notes:
print(n)
def test_score_book_example(self):
score = Score()
catalogue = InstrumentCatalog.instance()
score.add_instrument_voice(
InstrumentVoice(catalogue.get_instrument("violin")))
score.tempo_sequence.add(TempoEvent(Tempo(60), Position(0)))
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(4, Duration(1, 4)), Position(0)))
violin_voice = score.get_instrument_voice("violin")[0]
note_1 = Note(DiatonicPitch(4, 'A'), Duration(1, 4))
note_2 = Note(DiatonicPitch(5, 'C'), Duration(1, 8))
note_3 = Note(DiatonicPitch(5, 'B'), Duration(1, 8))
note_4 = Note(DiatonicPitch(5, 'D'), Duration(1, 4))
note_5 = Note(DiatonicPitch(5, 'E'), Duration(1, 8))
note_6 = Note(DiatonicPitch(5, 'D'), Duration(1, 8))
note_7 = Note(DiatonicPitch(4, 'G'), Duration(1, 4))
note_8 = Note(DiatonicPitch(4, 'C'), Duration(1, 4))
line = Line(
[note_1, note_2, note_3, note_4, note_5, note_6, note_7, note_8])
violin_voice.voice(0).pin(line)
smc = ScoreToMidiConverter(score)
smc.create('book_example_midi_file.mid', True)
ScoreToMidiConverter.convert_line(line,
'line_example_midi_file.mid',
Tempo(90, Duration(1, 8)),
instrument_name='violin')
def test_score_convert(self):
c = InstrumentCatalog.instance()
score = Score()
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
score.tempo_sequence.add(
TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
violin = c.get_instrument("violin")
violin_instrument_voice = InstrumentVoice(violin, 2)
violin_voice_0 = violin_instrument_voice.voice(0)
violin_voice_1 = violin_instrument_voice.voice(1)
assert violin_voice_0
assert violin_voice_1
score.add_instrument_voice(violin_instrument_voice)
violin_voice_0.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.P), Position(0)))
violin_voice_0.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.FFF), Position(1, 4)))
violin_voice_1.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.P), Position(0)))
violin_voice_1.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.FFF), Position(1, 4)))
# Add notes to the score
vnote0 = Note(DiatonicPitch(4, 'a'), Duration(1, 8))
vnote1 = Note(DiatonicPitch(4, 'b'), Duration(1, 8))
vnote2 = Note(DiatonicPitch(5, 'c'), Duration(1, 8))
vnote3 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
vnote4 = Note(DiatonicPitch(4, 'e'), Duration(1, 8))
vnote5 = Note(DiatonicPitch(4, 'f'), Duration(1, 8))
# Set up a violin voice with 6 8th notes
vline_0 = Line([vnote0, vnote1, vnote2])
violin_voice_0.pin(vline_0)
# Set up a violin voice with 6 8th notes
vline_1 = Line([vnote3, vnote4, vnote5])
violin_voice_1.pin(vline_1)
smc = ScoreToMidiConverter(score)
smc.create('score_output_file.mid')
TestScoreToMidiConverter.read_midi_file('score_output_file.mid')
def test_dynamic_volume(self):
c = InstrumentCatalog.instance()
score = Score()
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
score.tempo_sequence.add(
TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
violin = c.get_instrument("violin")
note0 = Note(DiatonicPitch(4, 'a'), Duration(3, 2))
note1 = Note(DiatonicPitch(4, 'b'), Duration(1, 2))
note2 = Note(DiatonicPitch(5, 'c'), Duration(1, 2))
note3 = Note(DiatonicPitch(5, 'd'), Duration(1, 4))
note4 = Note(DiatonicPitch(5, 'g'), Duration(1, 4))
note5 = Note(DiatonicPitch(5, 'f'), Duration(1, 4))
note6 = Note(DiatonicPitch(5, 'e'), Duration(1, 4))
note7 = Note(DiatonicPitch(5, 'd'), Duration(1, 4))
violin_instrument_voice = InstrumentVoice(violin, 1)
violin_voice = violin_instrument_voice.voice(0)
assert violin_voice
vline = Line([note0, note1, note2, note3, note4, note5, note6, note7])
violin_voice.pin(vline)
score.add_instrument_voice(violin_instrument_voice)
# create a crescendo
v_low = Dynamics.PPP.velocity
v_hi = Dynamics.FFFF.velocity
array = [(Position(0), v_low), (Position(3, 2), v_hi)]
f = PiecewiseLinearFunction(array)
event1 = DynamicsFunctionEvent(f, Position(0))
violin_voice.dynamics_sequence.add(event1)
smc = ScoreToMidiConverter(score)
smc.create('score_vary_volume_file.mid')
TestScoreToMidiConverter.read_midi_file('score_vary_volume_file.mid')
def build_vst_midi_list():
"""
:return:
"""
c = InstrumentCatalog.instance()
# Add notes to the score
vnote0 = Note(DiatonicPitch(4, 'a'), Duration(1, 8))
vnote1 = Note(DiatonicPitch(4, 'b'), Duration(1, 8))
vnote2 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
vnote3 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
vnote4 = Note(DiatonicPitch(4, 'e'), Duration(1, 8))
vnote5 = Note(DiatonicPitch(4, 'f'), Duration(1, 8))
# Set up a violin voice with 6 8th notes
vline = Line([vnote0, vnote1, vnote2, vnote3, vnote4, vnote5])
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(60), Position(0)))
ts_seq.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4), 'sww'),
Position(0)))
hc_track = HarmonicContextTrack()
diatonic_tonality = Tonality.create(ModalityType.Major, DiatonicTone("C"))
chord_t = TertianChordTemplate.parse('tIV')
chord = chord_t.create_chord(diatonic_tonality)
hc_track.append(HarmonicContext(diatonic_tonality, chord, Duration(2)))
score = Score()
score.tempo_sequence.add(TempoEvent(Tempo(60), Position(0)))
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
violin = c.get_instrument("violin")
violin_instrument_voice = InstrumentVoice(violin, 1)
score.add_instrument_voice(violin_instrument_voice)
violin_instrument_voice.voice(0).pin(vline)
return ScoreToVstMidiConverter.convert_score(score, {0: 0}), score
def test_variable_tempo_change(self):
c = InstrumentCatalog.instance()
score = Score()
violin = c.get_instrument("violin")
violin_instrument_voice = InstrumentVoice(violin, 1)
violin_voice = violin_instrument_voice.voice(0)
assert violin_voice
score.add_instrument_voice(violin_instrument_voice)
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
score.tempo_sequence.add(
TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
t_low = 60
t_hi = 250
array = [(Position(0), t_low), (Position(1), t_hi),
(Position(2), t_hi), (Position(3), t_low)]
f = PiecewiseLinearFunction(array)
event1 = TempoFunctionEvent(f, Position(1))
score.tempo_sequence.add(event1)
score.tempo_sequence.add(
TempoEvent(Tempo(t_low, Duration(1, 4)), Position(4)))
# create notes
notes = []
for _ in range(0, 6):
notes.append(Note(DiatonicPitch(4, 'c'), Duration(1, 4)))
notes.append(Note(DiatonicPitch(4, 'd'), Duration(1, 4)))
notes.append(Note(DiatonicPitch(4, 'e'), Duration(1, 4)))
notes.append(Note(DiatonicPitch(4, 'f'), Duration(1, 4)))
vline = Line(notes)
violin_voice.pin(vline)
smc = ScoreToMidiConverter(score)
smc.create('score_var_tempo_change_file.mid')
TestScoreToMidiConverter.read_midi_file(
'score_var_tempo_change_file.mid')
def convert_line(line,
filename,
tempo=Tempo(60, Duration(1, 4)),
time_signature=TimeSignature(4, Duration(1, 4)),
instrument_name='piano'):
"""
Static method to convert a Line to a midi file
Args:
line: Class Line object
filename: The name of the midi file, should have filetype .mid
tempo: Tempo for playback, default is 60 BPM tempo beat = quarter note
time_signature: TimeSiganture on playback, default is 4 quarter notes
instrument_name: Name of instrument ot use for playback.
"""
score = Score()
tempo_sequence = score.tempo_sequence
tempo_sequence.add(TempoEvent(tempo, Position(0)))
ts_sequence = score.time_signature_sequence
ts_sequence.add(TimeSignatureEvent(time_signature, Position(0)))
c = InstrumentCatalog.instance()
instrument = c.get_instrument(instrument_name)
if instrument is None:
print('Error: instrument {0} cannnot be found'.format(
instrument_name))
return
instrument_voice = InstrumentVoice(instrument, 1)
piano_voice = instrument_voice.voice(0)
piano_voice.pin(line, Offset(0))
score.add_instrument_voice(instrument_voice)
ScoreToMidiConverter.convert_score(score, filename)
def test_multi_track(self):
c = InstrumentCatalog.instance()
score = Score()
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
score.tempo_sequence.add(
TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
violin = c.get_instrument("violin")
piano = c.get_instrument("piano")
note0 = Note(DiatonicPitch(4, 'a'), Duration(1, 4))
note1 = Note(DiatonicPitch(4, 'b'), Duration(1, 4))
note2 = Note(DiatonicPitch(4, 'c'), Duration(1, 4))
note3 = Note(DiatonicPitch(4, 'd'), Duration(1, 4))
note4 = Note(DiatonicPitch(5, 'g'), Duration(1, 4))
note5 = Note(DiatonicPitch(5, 'f'), Duration(1, 4))
note6 = Note(DiatonicPitch(5, 'e'), Duration(1, 4))
note7 = Note(DiatonicPitch(5, 'd'), Duration(1, 4))
violin_instrument_voice = InstrumentVoice(violin, 1)
violin_voice = violin_instrument_voice.voice(0)
assert violin_voice
vline = Line([note0, note1, note2, note3])
violin_voice.pin(vline)
score.add_instrument_voice(violin_instrument_voice)
piano_instrument_voice = InstrumentVoice(piano, 1)
piano_voice = piano_instrument_voice.voice(0)
assert piano_voice
pline = Line([note4, note5, note6, note7])
piano_voice.pin(pline, Offset(1, 8))
score.add_instrument_voice(piano_instrument_voice)
violin_voice.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.F), Position(0)))
piano_voice.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.P), Position(0)))
smc = ScoreToMidiConverter(score)
smc.create('score_multi_trackoutput_file.mid')
TestScoreToMidiConverter.read_midi_file(
'score_multi_trackoutput_file.mid')
def test_add_notes_to_two_level_line(self):
score = Score()
catalogue = InstrumentCatalog.instance()
score.add_instrument_voice(
InstrumentVoice(catalogue.get_instrument("violin")))
# 1 beat == 1 sec, 3/4 TS + 60 beats per minute,
score.tempo_sequence.add(TempoEvent(Tempo(60), Position(0)))
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
violin_voice = score.get_instrument_voice("violin")[0]
top_line = Line(
[Note(DiatonicPitch(4, y), Duration(1, 8)) for y in 'afdecd'])
violin_voice.voice(0).pin(top_line, Offset(0))
level1_line = Line(
[Note(DiatonicPitch(5, y), Duration(1, 8)) for y in 'af'])
top_line.pin(level1_line, Offset(2))
level2_line = Line(
[Note(DiatonicPitch(6, y), Duration(1, 8)) for y in 'de'])
level1_line.pin(level2_line, Offset(1))
def test_acquire_notes(self):
c = InstrumentCatalog.instance()
score = Score()
violin = c.get_instrument("violin")
violin_instrument_voice = InstrumentVoice(violin)
violin_voice = violin_instrument_voice.voice(0)
assert violin_voice
score.add_instrument_voice(violin_instrument_voice)
clarinet = c.get_instrument("clarinet")
clarinet_instrument_voice = InstrumentVoice(clarinet)
clarinet_voice = clarinet_instrument_voice.voice(0)
assert clarinet_voice
score.add_instrument_voice(clarinet_instrument_voice)
# Add notes to the score
note_list = [
Note(DiatonicPitch(4, y), Duration(1, 8)) for y in 'abcdef'
]
# Set up a violin voice with 6 8th notes
vline = Line(note_list)
violin_voice.pin(vline)
cnote0 = Note(DiatonicPitch(5, 'a'), Duration(1, 4))
cnote1 = Note(DiatonicPitch(5, 'b'), Duration(1, 4))
cnote2 = Note(DiatonicPitch(5, 'c'), Duration(1, 4))
cnote3 = Note(DiatonicPitch(5, 'd'), Duration(1, 4))
# set up a clarinet line with 4 1`/4 notes
cline = Line([cnote0, cnote1, cnote2, cnote3])
clarinet_voice.pin(cline)
# search for notes sounding in [1/4, 3/4)
voice_note_map = score.get_notes_by_wnt_interval(
Interval(Position(1, 4), Position(3, 4)))
assert voice_note_map
for (k, v) in voice_note_map.items():
print('InstrumentVoice {0}:'.format(k))
for (k1, v1) in v.items():
print(' {0} --> [{1}]'.format(
k1.instrument, ', '.join(str(n) for n in v1)))
cvoice_map = voice_note_map.get(clarinet_instrument_voice)
cvoices = list(cvoice_map.keys())
assert cvoice_map
assert cvoices[0] in cvoice_map
cnotes = cvoice_map[cvoices[0]]
assert len(cnotes) == 2
assert TestScore.has_pitch(cnotes, DiatonicPitch.parse('B:5'))
assert TestScore.has_pitch(cnotes, DiatonicPitch.parse('C:5'))
vvoice_map = voice_note_map.get(violin_instrument_voice)
vvoices = list(vvoice_map.keys())
assert vvoice_map
assert vvoices[0] in vvoice_map
vnotes = vvoice_map[vvoices[0]]
assert len(vnotes) == 4
assert TestScore.has_pitch(vnotes, DiatonicPitch.parse('C:4'))
assert TestScore.has_pitch(vnotes, DiatonicPitch.parse('F:4'))
# search for notes starting in [3/8, 3/4)
voice_note_map = score.get_notes_starting_in_wnt_interval(
Interval(Position(3, 8), Position(3, 4)))
assert voice_note_map
for (k, v) in voice_note_map.items():
print('InstrumentVoice {0}:'.format(k))
for (k1, v1) in v.items():
print(' {0} --> [{1}]'.format(k1.instrument,
', '.join(str(n)
for n in v1)))
cvoice_map = voice_note_map.get(clarinet_instrument_voice)
cvoices = list(cvoice_map.keys())
assert cvoice_map
assert cvoices[0] in cvoice_map
cnotes = cvoice_map[cvoices[0]]
assert len(cnotes) == 1
assert TestScore.has_pitch(cnotes, DiatonicPitch.parse('C:5'))
vvoice_map = voice_note_map.get(violin_instrument_voice)
vvoices = list(vvoice_map.keys())
assert vvoice_map
assert vvoices[0] in vvoice_map
vnotes = vvoice_map[vvoices[0]]
assert len(vnotes) == 3
assert TestScore.has_pitch(vnotes, DiatonicPitch.parse('D:4'))
assert TestScore.has_pitch(vnotes, DiatonicPitch.parse('E:4'))
assert TestScore.has_pitch(vnotes, DiatonicPitch.parse('F:4'))
duration = score.duration
print('full wnt duration = {0}'.format(duration))
assert duration == Duration(1, 1)
with self.assertRaises(Exception):
bd = score.beat_duration
print(bd)
# 3/4 TS + 60 beats per minute, 1 beat == 1 sec
score.tempo_sequence.add(TempoEvent(Tempo(60), Position(0)))
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
bp_duration = score.beat_duration
print('full beat duration = {0}'.format(bp_duration))
assert bp_duration == BeatPosition(1, 1)
real_duration = score.real_duration
print('real duration = {0}'.format(real_duration))
assert real_duration == 4000
def test_score_convert(self):
print('test_score_convert')
c = InstrumentCatalog.instance()
score = Score()
score.time_signature_sequence.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
score.tempo_sequence.add(
TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
violin = c.get_instrument("violin")
violin_instrument_voice = InstrumentVoice(violin, 2)
violin_voice_0 = violin_instrument_voice.voice(0)
violin_voice_1 = violin_instrument_voice.voice(1)
assert violin_voice_0
assert violin_voice_1
score.add_instrument_voice(violin_instrument_voice)
violin_voice_0.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.P), Position(0)))
violin_voice_0.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.FFF), Position(1, 4)))
violin_voice_1.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.P), Position(0)))
violin_voice_1.dynamics_sequence.add(
DynamicsEvent(Dynamics(Dynamics.FFF), Position(1, 4)))
# Add notes to the score
vnote0 = Note(DiatonicPitch(4, 'a'), Duration(1, 8))
vnote1 = Note(DiatonicPitch(4, 'b'), Duration(1, 8))
vnote2 = Note(DiatonicPitch(5, 'c'), Duration(1, 8))
vnote3 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
vnote4 = Note(DiatonicPitch(4, 'e'), Duration(1, 8))
vnote5 = Note(DiatonicPitch(4, 'f'), Duration(1, 8))
# Set up a violin voice with 6 8th notes
vline_0 = Line([vnote0, vnote1, vnote2])
violin_voice_0.pin(vline_0)
# Set up a violin voice with 6 8th notes
vline_1 = Line([vnote3, vnote4, vnote5])
violin_voice_1.pin(vline_1, Offset(1, 16))
# The test merges these two voices into one.
svmc = ScoreToVstMidiConverter(score)
meta_track, tracks = svmc.create({0: 4})
assert meta_track is not None
assert tracks is not None
assert len(tracks) == 1
assert len(tracks[0]) == 16
for i in range(0, len(tracks[0])):
print("{0}: {1}".format(i, tracks[0][i]))
assert isinstance(tracks[0][0], NoteMessage)
assert tracks[0][0].msg_type == 144
assert tracks[0][0].note_value == 69 # A
assert tracks[0][0].abs_frame_time == 0
assert tracks[0][0].rel_frame_time == 0
assert isinstance(tracks[0][3], NoteMessage)
assert tracks[0][3].msg_type == 144
assert tracks[0][3].note_value == 62 # D
assert tracks[0][3].abs_frame_time == 10525
assert tracks[0][3].rel_frame_time == 10525
assert isinstance(tracks[0][5], NoteMessage)
assert tracks[0][5].msg_type == 144
assert tracks[0][5].note_value == 71 # B
assert tracks[0][5].abs_frame_time == 21050
assert tracks[0][5].rel_frame_time == 0
assert isinstance(tracks[0][4], NoteMessage)
assert tracks[0][4].msg_type == 128
assert tracks[0][4].note_value == 69 # A
assert tracks[0][4].abs_frame_time == 21050
assert tracks[0][4].rel_frame_time == 10525
assert isinstance(tracks[0][6], NoteMessage)
assert tracks[0][6].msg_type == 128
assert tracks[0][6].note_value == 62 # D
assert tracks[0][6].abs_frame_time == 31575
assert tracks[0][6].rel_frame_time == 10525
assert isinstance(tracks[0][8], NoteMessage)
assert tracks[0][8].msg_type == 128
assert tracks[0][8].note_value == 71 # B
assert tracks[0][8].abs_frame_time == 42100
assert tracks[0][8].rel_frame_time == 10525