def test_swing_on_off(swing):
# Default is swing off
assert not swing.is_swing_on()
# Can override default
swing_2 = Swing(swing_on=True,
swing_range=SWING_RANGE,
swing_direction=Swing.SwingDirection.Forward)
assert swing_2.is_swing_on()
# Can toggle with methods
swing_2.set_swing_off()
assert not swing_2.is_swing_on()
swing_2.set_swing_on()
assert swing_2.is_swing_on()
def test_assign_meter_swing(meter, section):
new_meter = Meter(beats_per_measure=BEATS_PER_MEASURE * 2,
beat_note_dur=BEAT_DUR)
section.meter = new_meter
assert section.meter == new_meter
new_swing = Swing(swing_range=SWING_RANGE * 2)
section._swing = new_swing
assert section._swing == new_swing
def test_assign_swing_apply_swing(section):
# Expect notes to be adjusted downward instead of upward because we use
# a new Swing with SwingDirection.Reverse instead of the default Forward
# Note that the first note is expected to be 0.0 and not negative because apply_swing() catches this case
# and assigns any negative note.start value to 0.0
expected_swing_note_starts = [
0.0, section[0][1].start - SWING_RANGE,
section[0][2].start - SWING_RANGE, section[0][3].start - SWING_RANGE,
0.0, section[1][1].start - SWING_RANGE,
section[1][2].start - SWING_RANGE, section[1][3].start - SWING_RANGE
]
# Does adjust notes if swing is on
new_swing = Swing(swing_range=SWING_RANGE,
swing_direction=Swing.SwingDirection.Reverse,
swing_jitter_type=Swing.SwingJitterType.Fixed)
section.swing = new_swing
section.set_swing_on().apply_swing()
actual_swing_note_starts = section.get_attr('start')
assert expected_swing_note_starts == pytest.approx(
actual_swing_note_starts)
SCORE_HEADER = '''; Function 1
; GEN10 Parameters:
; - str1, str2, str3 ... where str is a fixed harmonic partial
; - the value of str# is the relative strength of the partial in the final mixed timbre
; - partials to be skipped are given value 0
;
; Func # Loadtm TblSize GEN Parameters ...
; First partial variations
f 1 0 8193 10 1'''
SCORE_HEADER_LINES = [SCORE_HEADER]
if __name__ == '__main__':
meter = Meter(beats_per_measure=BEATS_PER_MEASURE,
beat_note_dur=BEAT_DUR,
tempo=TEMPO_QPM)
swing = Swing(swing_range=SWING_RANGE)
measure = Measure(num_notes=NUM_NOTES,
meter=meter,
swing=swing,
mn=DEFAULT_NOTE_CONFIG())
for i in range(NUM_NOTES):
measure[i].instrument = INSTRUMENT_1_ID
measure[i].start = (i % NUM_NOTES) * DUR
measure[i].duration = DUR
measure[i].amplitude = BASE_AMP
measure[i].pitch = PITCH
measure.apply_swing()
track = Track(to_add=[measure],
name='ostinato',
instrument=INSTRUMENT_1_ID)
song = Song(to_add=[track], name=SONG_NAME)
def swing():
return Swing(swing_range=SWING_RANGE)
def swing():
return Swing(swing_range=SWING_RANGE,
swing_direction=SWING_DIRECTION,
swing_jitter_type=SWING_JITTER_TYPE)
from omnisound.src.modifier.swing import Swing
# Meter
BEATS_PER_MEASURE = 4
BEAT_DUR = NoteDur.QUARTER
# noinspection PyTypeChecker
BEAT_DUR_VAL: float = BEAT_DUR.value
BPM = 240
METER = Meter(beats_per_measure=BEATS_PER_MEASURE,
beat_note_dur=BEAT_DUR,
tempo=BPM,
quantizing=True)
# Swing
SWING_FACTOR = 0.005
SWING = Swing(swing_on=True,
swing_range=SWING_FACTOR,
swing_direction=Swing.SwingDirection.Both)
# Sequencer
SEQUENCER_NAME = 'example_midi_sequencer_song'
NUM_MEASURES = 4
MIDI_FILE_PATH = Path(
'/Users/markweiss/Documents/projects/omnisound/omnisound/example/example_sequencer_song.mid'
)
BASE_VELOCITY = 100
VELOCITY_FACTOR = 2
if __name__ == '__main__':
def get_velocity(j, notes_per_measure):
return int(BASE_VELOCITY - ((j % notes_per_measure) / VELOCITY_FACTOR))
if __name__ == '__main__':
performance_attrs = PerformanceAttrs()
# Declare track container
ostinato_track = MidiTrack(name='ostinato',
instrument=MidiInstrument.Vibraphone.value,
channel=1)
chords_track = MidiTrack(
name='chords',
instrument=MidiInstrument.Acoustic_Grand_Piano.value,
channel=2)
# Ostinato
swing_factor = 0.008
swing = Swing(swing_on=True,
swing_range=swing_factor,
swing_direction=Swing.SwingDirection.Both)
dur = NoteDur.THIRTYSECOND
# noinspection PyTypeChecker
dur_val: float = dur.value
notes_per_measure = int((1 / dur_val) * (BEATS_PER_MEASURE * BEAT_DUR_VAL))
for _ in range(NUM_MEASURES):
note_config = MakeNoteConfig.copy(NOTE_CONFIG)
ostinato_measure = Measure(num_notes=notes_per_measure,
meter=METER,
swing=swing,
mn=note_config)
for i in range(notes_per_measure):
note_values = NoteValues(ATTR_NAMES)