def get_time_in_ms(self):
event_list = self.score.tempo_sequence.sequence_list
score_len = self.score.length()
fine_tempo_sequence = TempoEventSequence()
for event in event_list:
if isinstance(event, TempoEvent):
fine_tempo_sequence.add(TempoEvent(event.object, event.time))
elif isinstance(event, TempoFunctionEvent):
t1 = event.time
beat_duration = event.beat_duration if event.beat_duration is None else \
ScoreToVstMidiConverter.DEFAULT_BEAT_DURATION
next_event = self.score.tempo_sequence.successor(event)
t2 = next_event.time if next_event is not None else Position(
score_len.duration)
while t1 < t2:
tempo = int(
event.tempo(
t1, next_event.time if next_event is not None else
Position(score_len)))
delta_wnt = (tempo * ScoreToVstMidiConverter.TEMPO_EVENT_DURATION_MS * beat_duration.duration) / \
(60.0 * 1000.0)
fine_tempo_sequence.add(
TempoEvent(Tempo(tempo, beat_duration), t1))
t1 += delta_wnt
conversion = TimeConversion(fine_tempo_sequence,
self.score.time_signature_sequence,
Position(score_len))
actual_time = conversion.position_to_actual_time(
Position(self.score.duration))
return actual_time
def _build_default_time_sig_tempo():
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
ts_seq.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4), 'sww'),
Position(0)))
return ts_seq, tempo_seq
def create_score_1(line, hct, instrument, ts):
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
ts_seq.add(TimeSignatureEvent(TimeSignature(ts[0], Duration(1, ts[1]), ts[2]), Position(0)))
c = InstrumentCatalog.instance()
instrument = c.get_instrument(instrument)
return LiteScore(line, hct, instrument, tempo_seq, ts_seq)
def test_basic_setup(self):
c = InstrumentCatalog.instance()
violin = c.get_instrument("violin")
# 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 = LiteScore(vline, hc_track, violin, tempo_seq, ts_seq)
bp = score.beat_position(Position(0))
print(bp)
assert bp.beat_number == 0
bp = score.beat_position(Position(5, 8))
print(bp)
assert bp.measure_number == 0
assert bp.beat_number == Fraction(5, 2)
assert int(bp.beat_number) == 2
assert bp.beat_number - bp.beat == Fraction(1, 2)
tse = score.time_signature_sequence.floor_event(Position(5, 8))
assert tse is not None
print(tse.object.beat_type(bp.beat))
assert tse.object.beat_type(bp.beat) == BeatType.Weak
assert bp.beat_fraction == Fraction(1, 2)
bp = score.beat_position(Position(1, 16))
print(bp)
tse = score.time_signature_sequence.floor_event(Position(1, 16))
print(tse.object.beat_type(bp.beat))
assert tse.object.beat_type(bp.beat) == BeatType.Strong
def create_score(line_expression, instrument, ts):
lge = LineGrammarExecutor()
source_instance_line, source_instance_hct = lge.parse(line_expression)
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
ts_seq.add(TimeSignatureEvent(TimeSignature(ts[0], Duration(1, ts[1]), ts[2]), Position(0)))
c = InstrumentCatalog.instance()
instrument = c.get_instrument(instrument)
return LiteScore(source_instance_line, source_instance_hct, instrument, tempo_seq, ts_seq)
def build_simple_constraint(v_note, f, modality_type, key_str, chord_str):
lower_policy_context = TestFitPitchToFunctionConstraint.policy_creator(
modality_type, DiatonicTone(key_str), chord_str, 'C:2', 'C:8')
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
ts_seq.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4), 'sww'),
Position(0)))
return FitPitchToFunctionConstraint(v_note, f, tempo_seq,
ts_seq), lower_policy_context
def create_score(s_notes, modality, key_tone, chords, instrument, ts):
diatonic_tonality = Tonality.create(modality, DiatonicToneCache.get_tone(key_tone))
hc_track = TestTReshape.create_track(chords, diatonic_tonality)
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
ts_seq.add(TimeSignatureEvent(TimeSignature(ts[0], Duration(1, ts[1]), ts[2]), Position(0)))
c = InstrumentCatalog.instance()
violin = c.get_instrument(instrument)
return LiteScore(TestTReshape.create_line(s_notes), hc_track, violin, tempo_seq, ts_seq)
def create_score_artifacts(modality, key_tone, chords, ts):
diatonic_tonality = Tonality.create(
modality, DiatonicToneCache.get_tone(key_tone))
hc_track = TestPitchFitFunction.create_track(chords, diatonic_tonality)
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
ts_seq.add(
TimeSignatureEvent(TimeSignature(ts[0], Duration(1, ts[1]), ts[2]),
Position(0)))
return hc_track, tempo_seq, ts_seq
def create_score(grammar_str, instrument, ts):
lge = LineGrammarExecutor()
target_line, target_hct = lge.parse(grammar_str)
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
ts_seq.add(
TimeSignatureEvent(TimeSignature(ts[0], Duration(1, ts[1]), ts[2]),
Position(0)))
c = InstrumentCatalog.instance()
violin = c.get_instrument(instrument)
return LiteScore(target_line, target_hct, violin, tempo_seq, ts_seq)
def dilate_tempo_sequence(self, tempo_event_sequence):
if tempo_event_sequence is None:
return None
new_tes = TempoEventSequence()
tempi_events = tempo_event_sequence.sequence_list
for tempo_event in tempi_events:
tempo = tempo_event.object
t = Tempo(
tempo.tempo /
self.dilation_factor if self.apply_to_bpm else tempo.tempo,
tempo.beat_duration if not self.apply_to_notes else
tempo.beat_duration * self.dilation_factor)
new_te = TempoEvent(
t, tempo_event.time * self.dilation_factor
if self.apply_to_notes else tempo_event.time)
new_tes.add(new_te)
return new_tes
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 create_score(line_text, instrument, tmpo, ts):
"""
:param line_text:
:param instrument:
:param tmpo: (bpm, tempo beat duration)
:param ts: (num beats, ts beat duration)
:return:
"""
lge = LineGrammarExecutor()
source_instance_line, source_instance_hct = lge.parse(line_text)
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(tmpo[0], tmpo[1]), Position(0)))
ts_seq.add(TimeSignatureEvent(TimeSignature(ts[0], ts[1]), Position(0)))
c = InstrumentCatalog.instance()
instrument = c.get_instrument(instrument)
return LiteScore(source_instance_line, source_instance_hct, instrument,
tempo_seq, ts_seq)
def test_book_tempo_sequence(self):
print('----- test_book_tempo_sequence -----')
seq = TempoEventSequence()
seq.add(TempoEvent(Tempo(TempoType.Grave), Position(0)))
seq.add(TempoEvent(Tempo(TempoType.Moderato), Position(10)))
seq.add(TempoEvent(Tempo(TempoType.Vivace), Position(25)))
seq.add(TempoEvent(Tempo(TempoType.Largo), Position(50)))
event = seq.first
while event is not None:
print(event)
event = seq.successor(event)
print('----- End test_book_tempo_sequence -----')
def test_simple_setup(self):
print('--- test_simple_setup')
line = Line()
notes = [
Note(DiatonicPitch.parse('a:4'), Duration(1, 4)),
Note(DiatonicPitch.parse('b:4'), Duration(1, 4)),
Note(DiatonicPitch.parse('c:4'), Duration(1, 4)),
Note(DiatonicPitch.parse('d:4'), Duration(1, 4)),
Note(DiatonicPitch.parse('e:4'), Duration(1, 2)),
Note(DiatonicPitch.parse('f:4'), Duration(1, 2)),
]
location = 0
for note in notes:
line.pin(note, Offset(location))
location += note.duration.duration
tempo_seq = TempoEventSequence()
ts_seq = EventSequence()
tempo_seq.add(TempoEvent(Tempo(60, Duration(1, 4)), Position(0)))
ts_seq.add(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4), 'sww'),
Position(0)))
diatonic_tonality = Tonality.create(ModalityType.Major,
DiatonicTone("C"))
chord_t = TertianChordTemplate.parse('tIV')
chord = chord_t.create_chord(diatonic_tonality)
hc_track = HarmonicContextTrack()
hc_track.append(
HarmonicContext(diatonic_tonality, chord, Duration(1, 1)))
hc_track.append(
HarmonicContext(diatonic_tonality, chord, Duration(1, 2)))
hc_track.append(
HarmonicContext(diatonic_tonality, chord, Duration(1, 2)))
c = InstrumentCatalog.instance()
violin = c.get_instrument("violin")
score = LiteScore(line, hc_track, violin, tempo_seq, ts_seq)
constraints = [
OnBeatConstraint(notes[1], BeatType.Strong),
StepSequenceConstraint(notes, [1, 1, 1, -1, -1])
]
solver = MelodicConstraintSolver.create(score, constraints)
cheat = {notes[2]: DiatonicPitch.parse('E:5')}
results = solver.solve(cheat)
assert results is not None
assert results.beat_results is not None
assert results.pitch_results is not None
print(len(results.beat_results))
print(len(results.pitch_results))
assert 1 == len(results.beat_results)
assert 1 == len(results.pitch_results)
new_line = results.apply(next(iter(results.beat_results)),
next(iter(results.pitch_results)))
assert new_line is not None
print(new_line)
all_notes = new_line.get_all_notes()
assert 'C:5' == str(all_notes[0].diatonic_pitch)
assert 'D:5' == str(all_notes[1].diatonic_pitch)
assert 'E:5' == str(all_notes[2].diatonic_pitch)
assert 'F:5' == str(all_notes[3].diatonic_pitch)
assert 'E:5' == str(all_notes[4].diatonic_pitch)
assert 'D:5' == str(all_notes[5].diatonic_pitch)
assert Position(3, 4) == all_notes[1].get_absolute_position()