def get_notes_by_bp_interval(self, interval):
conversion = TimeConversion(self.tempo_sequence,
self.time_signature_sequence,
Position(self.duration.duration))
wnt_interval = Interval(conversion.bp_to_position(interval.lower),
conversion.bp_to_position(interval.upper))
return self.get_notes_by_wnt_interval(wnt_interval)
def get_notes_starting_in_bp_interval(self, interval):
"""
Get all notes starting in the score by an interval based on beat position: Return dict structure as follows:
instrument_voice --> {voice_index --> [notes]}
"""
conversion = TimeConversion(self.tempo_sequence,
self.time_signature_sequence,
Position(self.duration.duration))
wnt_interval = Interval(conversion.bp_to_position(interval.lower),
conversion.bp_to_position(interval.upper))
return self.get_notes_starting_in_wnt_interval(wnt_interval)
def test_bp_to_position(self):
tempo_line = EventSequence([TempoEvent(Tempo(60), Position(0))])
ts_line = EventSequence(
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)))
conversion = TimeConversion(tempo_line, ts_line, Position(2, 1))
bp = conversion.bp_to_position(BeatPosition(0, 2))
print(bp)
self.assertTrue(bp == Position(1, 2), 'bp is {0}, not 1/2'.format(bp))
bp = conversion.bp_to_position(BeatPosition(1, 1))
print(bp)
self.assertTrue(bp == Position(1), 'bp is {0}, not 1'.format(bp))
tempo_line = EventSequence([
TempoEvent(Tempo(60), Position(0)),
TempoEvent(Tempo(20), Position(4, 4))
])
ts_line = EventSequence([
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)), Position(0)),
TimeSignatureEvent(TimeSignature(2, Duration(1, 8)),
Position(6, 4))
])
conversion = TimeConversion(tempo_line, ts_line, Position(2, 1))
bp = conversion.bp_to_position(BeatPosition(1, 2))
print(bp)
self.assertTrue(bp == Position(5, 4), 'bp is {0}, not 5/4'.format(bp))
bp = conversion.bp_to_position(BeatPosition(2, 1))
print(bp)
self.assertTrue(bp == Position(13, 8),
'bp is {0}, not 13/8'.format(bp))
tempo_line = EventSequence([
TempoEvent(Tempo(60), Position(0)),
TempoEvent(Tempo(20), Position(4, 4))
])
ts_line = EventSequence([
TimeSignatureEvent(TimeSignature(4, Duration(1, 4)), Position(0)),
TimeSignatureEvent(TimeSignature(3, Duration(1, 4)),
Position(5, 2))
])
conversion = TimeConversion(tempo_line, ts_line, Position(4),
Duration(1, 2))
# pickup
bp = conversion.bp_to_position(BeatPosition(0, 2))
print(bp)
self.assertTrue(bp == Position(0), 'bp is {0}, not 0'.format(bp))
bp = conversion.bp_to_position(BeatPosition(0, 3))
print(bp)
self.assertTrue(bp == Position(1, 4), 'bp is {0}, not 1/4'.format(bp))
# measure 1
bp = conversion.bp_to_position(BeatPosition(1, 0))
print(bp)
self.assertTrue(bp == Position(1, 2), 'bp is {0}, not 1/2'.format(bp))
bp = conversion.bp_to_position(BeatPosition(1, 1))
print(bp)
self.assertTrue(bp == Position(3, 4), 'bp is {0}, not 3/4'.format(bp))
bp = conversion.bp_to_position(BeatPosition(1, 2))
print(bp)
self.assertTrue(bp == Position(1, 1), 'bp is {0}, not 1'.format(bp))
bp = conversion.bp_to_position(BeatPosition(1, 3))
print(bp)
self.assertTrue(bp == Position(5, 4), 'bp is {0}, not 5/4'.format(bp))
# measure 2
bp = conversion.bp_to_position(BeatPosition(2, 0))
print(bp)
self.assertTrue(bp == Position(3, 2), 'bp is {0}, not 3/2'.format(bp))
bp = conversion.bp_to_position(BeatPosition(2, 1))
print(bp)
self.assertTrue(bp == Position(7, 4), 'bp is {0}, not 7/4'.format(bp))
bp = conversion.bp_to_position(BeatPosition(2, 2))
print(bp)
self.assertTrue(bp == Position(2, 1), 'bp is {0}, not 2'.format(bp))
bp = conversion.bp_to_position(BeatPosition(2, 3))
print(bp)
self.assertTrue(bp == Position(9, 4), 'bp is {0}, not 9/4'.format(bp))
# measure 3
bp = conversion.bp_to_position(BeatPosition(3, 0))
print(bp)
self.assertTrue(bp == Position(5, 2), 'bp is {0}, not 5/2'.format(bp))
bp = conversion.bp_to_position(BeatPosition(3, 1))
print(bp)
self.assertTrue(bp == Position(11, 4),
'bp is {0}, not 11/4'.format(bp))
bp = conversion.bp_to_position(BeatPosition(3, 2))
print(bp)
self.assertTrue(bp == Position(3, 1), 'bp is {0}, not 3'.format(bp))
# measure 4
bp = conversion.bp_to_position(BeatPosition(4, 0))
print(bp)
self.assertTrue(bp == Position(13, 4),
'bp is {0}, not 13/4'.format(bp))
bp = conversion.bp_to_position(BeatPosition(4, 1))
print(bp)
self.assertTrue(bp == Position(7, 2), 'bp is {0}, not 7, 2'.format(bp))
bp = conversion.bp_to_position(BeatPosition(4, 2))
print(bp)
self.assertTrue(bp == Position(15, 4),
'bp is {0}, not 15/4'.format(bp))