def test_sieves_00():
sieve = abjad.Pattern(indices=[0, 1], period=12)
origin = 1
low = -2
high = 3
pitches = pang.gen_pitches_from_sieve(sieve, origin, low, high)
assert pitches == [1, 2]
def test_sieves_01():
sieve = abjad.Pattern(indices=[0, 1, 7], period=12)
origin = 6
low = -12
high = 11
pitches = pang.gen_pitches_from_sieve(sieve, origin, low, high)
assert pitches == [-11, -6, -5, 1, 6, 7]
import forty_seven
import pang
template = forty_seven.make_score_template()
maker = pang.SegmentMaker(score_template=template, segment_name="c")
pitch_set_0 = pang.gen_pitches_from_sieve(
sieve=forty_seven.sieves["C"],
origin=0,
pitch_range=forty_seven.registrations["low"],
multiplier=0.5,
)
pitch_set_1 = pang.gen_pitches_from_sieve(
sieve=forty_seven.sieves["A"] | forty_seven.sieves["B"],
origin=0,
pitch_range=forty_seven.registrations["high"],
multiplier=1,
)
sequence = pang.Sequence()
sound_points_generator = pang.RandomWalkSoundPointsGenerator(
arrival_rate=1.0,
service_rate=1.3,
arrival_model="deterministic",
service_model="markov",
pitch_set=pitch_set_0,
seed=4145405,
)
sequence_segment = pang.Sequence(
sound_points_generator=sound_points_generator, sequence_duration=80
import forty_seven
import pang
template = forty_seven.make_score_template()
maker = pang.SegmentMaker(score_template=template, segment_name="d")
pitch_set_0 = pang.gen_pitches_from_sieve(
sieve=forty_seven.sieves["B"] & forty_seven.sieves["C"],
origin=0,
pitch_range=forty_seven.registrations["mid-high"],
multiplier=1,
)
sequence = pang.Sequence()
for i in range(10):
sound_points_generator = pang.AtaxicSoundPointsGenerator(
arrival_rate=1.5 - (i % 3 * 2 / 3),
service_rate=2.0 - (i % 3 * 2 / 3),
pitch_set=pitch_set_0,
seed=91851 + i * i,
)
sequence_segment = pang.Sequence(
sound_points_generator=sound_points_generator, sequence_duration=10)
sequence.extend(sequence_segment)
command = pang.QuantizeSequenceCommand(sequence,
q_schema=forty_seven.q_schemas["D"])
scope = pang.Scope(voice_name="FluteVoice1")
maker(scope, command)
import abjad
import forty_seven
import pang
pitch_set_0 = pang.gen_pitches_from_sieve(
sieve=forty_seven.sieves["A"],
origin=0,
pitch_range=forty_seven.registrations["full"],
multiplier=0.5,
)
maker = abjad.LeafMaker()
duration = abjad.Duration((1, 4))
leaves = maker(pitch_set_0, duration)
staff = abjad.Staff(leaves)
abjad.show(staff)