def test_glissando_line(self):
p0 = old.PitchInterpolation(3, mel.SimplePitch(0, 300))
p1 = old.PitchInterpolation(4, mel.SimplePitch(0, 0))
p2 = old.PitchInterpolation(0, mel.SimplePitch(0, -300))
line = interpolations.InterpolationLine((p0, p1, p2))
gliss = old.GlissandoLine(line)
interpol0 = gliss.interpolate(1)
self.assertEqual(interpol0, (300, 200, 100, 0, -100, -200, -300))
def add_glissando(
nth_event: int,
scale_degrees: tuple,
novent_line: lily.NOventLine,
durations: tuple = tuple([]),
verse_maker: mus.SegmentMaker = None,
adapt_by_changed_structure: bool = False,
):
n_scale_degrees = len(scale_degrees)
assert verse_maker or durations or n_scale_degrees in (1, 2)
if not durations:
if n_scale_degrees == 2:
durations = (novent_line[nth_event].duration, )
elif n_scale_degrees > 2:
durations = tuple(
fractions.Fraction(nv.delay) for nv in split_by_structure(
nth_event,
n_scale_degrees - 1,
novent_line,
verse_maker=verse_maker,
change_novent_line=False,
adapt_by_changed_structure=adapt_by_changed_structure,
))
assert len(durations) == len(scale_degrees) - 1
novent = novent_line[nth_event].copy()
normalized_pitch = novent.pitch[0].normalize()
instrument = globals_.PITCH2INSTRUMENT[normalized_pitch]
octave = novent.pitch[0].octave
pitch_zone = tuple(
p.register(octave) for p in sorted(
tuple(
p.copy() for p in globals_.SCALE_PER_INSTRUMENT[instrument])))
pitch_zone = functools.reduce(
operator.add,
(tuple(p + ji.JIPitch([n - 1]) for p in pitch_zone) for n in range(3)),
)
pitch_null_idx = pitch_zone.index(novent.pitch[0])
durations += (0, )
interpolation_line = []
for relative_pitch_class, duration in zip(scale_degrees, durations):
pc = relative_pitch_class % 7
octave = relative_pitch_class // 7
pitch = pitch_zone[pc + pitch_null_idx] + ji.JIPitch(
[octave]) - novent.pitch[0]
interpolation_line.append(old.PitchInterpolation(duration, pitch))
novent_line[nth_event].glissando = old.GlissandoLine(
interpolations.InterpolationLine(interpolation_line))
def _convert_dissonant_tones2glissandi(self, melody: old.Melody):
consonant_tones_positions = tools.find_all_indices_of_n(
True, self.__is_not_dissonant_pitch_per_tone)
new_melody = melody[:consonant_tones_positions[0]].copy()
melody_size = len(melody)
consonant_and_its_dissonant_tones = tuple(
(melody[idx0], melody[idx0 + 1:idx1]) for idx0, idx1 in zip(
consonant_tones_positions,
consonant_tones_positions[1:] + (melody_size, ),
))
for main_and_its_side_tones in consonant_and_its_dissonant_tones:
main_tone, additional_tones = main_and_its_side_tones
if not main_tone.pitch.is_empty:
duration_per_pitch = (main_tone.duration, ) + tuple(
t.duration for t in additional_tones)
summed_duration = sum(duration_per_pitch)
glissando = []
for t0, t1 in zip((main_tone, ) + tuple(additional_tones),
additional_tones):
pitch_difference = t0.pitch - main_tone.pitch
duration = t0.duration
if duration > self.glissando_duration:
staying = duration - self.glissando_duration
changing = self.glissando_duration
else:
staying = duration * 0.5
changing = float(staying)
glissando.append(
old.PitchInterpolation(staying, pitch_difference))
glissando.append(
old.PitchInterpolation(changing, pitch_difference))
last_pitch = mel.TheEmptyPitch
last_pitch_idx = -1
while last_pitch.is_empty:
try:
last_pitch = additional_tones[last_pitch_idx].pitch
except IndexError:
last_pitch = None
break
last_pitch_idx -= 1
if last_pitch is not None:
pitch_difference = last_pitch - main_tone.pitch
glissando.append(
old.PitchInterpolation(0, pitch_difference))
glissando = old.GlissandoLine(
interpolations.InterpolationLine(glissando))
else:
glissando = None
new_tone = old.Tone(
main_tone.pitch,
delay=summed_duration,
duration=summed_duration,
glissando=glissando,
)
new_melody.append(new_tone)
else:
new_melody.extend((main_tone, ) + tuple(additional_tones))
return new_melody
if nchnls == 1:
cmd += "--mono "
if preset is not None:
cmd += "--preset {0} ".format(preset)
if fxp is not None:
cmd += "--fxp {0} ".format(fxp)
cmd += "--midi {0}.mid --wav {0}.wav".format(name)
os.system(cmd)
if __name__ == "__main__":
from mu.mel import ji
gliss0 = old.GlissandoLine(
old.InterpolationLine([
old.PitchInterpolation(1, ji.r(8, 7)),
old.PitchInterpolation(2, ji.r(1, 1)),
old.PitchInterpolation(0, ji.r(1, 1)),
]))
gliss1 = old.GlissandoLine(
old.InterpolationLine([
old.PitchInterpolation(1, ji.r(1, 1)),
old.PitchInterpolation(1, ji.r(7, 8)),
old.PitchInterpolation(1, ji.r(1, 1)),
old.PitchInterpolation(0, ji.r(1, 1)),
]))
vib0 = old.VibratoLine(
old.InterpolationLine([
old.PitchInterpolation(2, ji.r(30, 29)),
old.PitchInterpolation(0, ji.r(1, 1)),
]),
old.InterpolationLine([
def __call__(self, melody: old.Melody) -> old.Melody:
new_melody = melody.copy()
melody_size = len(melody)
for idx, tone in enumerate(new_melody):
halved_duration = tone.duration * 0.5
# only add ornamentation if there isn't any glissando yet
if (not tone.glissando and not tone.pitch.is_empty
and halved_duration > self.__minima_gissando_duration):
previous = None
following = None
previous_distance = None
following_distance = None
if idx != 0 and not melody[idx - 1].pitch.is_empty:
previous = melody[idx - 1]
previous_distance = previous.pitch.cents - tone.pitch.cents
if idx + 1 != melody_size and not melody[idx +
1].pitch.is_empty:
following = melody[idx + 1]
following_distance = following.pitch.cents - tone.pitch.cents
beginning_and_end_glissando = (
previous is not None
and abs(previous_distance) > self.__minima_gissando_size,
following is not None
and abs(following_distance) > self.__minima_gissando_size,
)
if any(beginning_and_end_glissando):
if next(self.__al):
if all(beginning_and_end_glissando):
glissando_type = next(
self.__glissando_type_generator)
else:
glissando_type = beginning_and_end_glissando.index(
True)
glissando_type = ((True, False), (False, True),
(True, True))[glissando_type]
glissando_line = []
is_first = True
for is_allowed, distance in zip(
glissando_type,
(previous_distance, following_distance)):
if is_allowed:
data = self.get_glissando_values(
halved_duration, distance)
remaining_time = halved_duration - data[1]
if is_first:
data = (
old.PitchInterpolation(
data[1],
mel.SimplePitch(0, data[0])),
old.PitchInterpolation(
remaining_time,
mel.SimplePitch(0, 0)),
)
else:
data = (
old.PitchInterpolation(
remaining_time,
mel.SimplePitch(0, 0)),
old.PitchInterpolation(
data[1], mel.SimplePitch(0, 0)),
old.PitchInterpolation(
0, mel.SimplePitch(0, data[0])),
)
else:
data = [
old.PitchInterpolation(
halved_duration, mel.SimplePitch(0, 0))
]
if not is_first:
data.append(
old.PitchInterpolation(
0, mel.SimplePitch(0, 0)))
glissando_line.extend(data)
is_first = False
new_melody[idx].glissando = old.GlissandoLine(
interpolations.InterpolationLine(glissando_line))
return new_melody