def __call__(self, pulse_duration):
r'''Generate Abjad score components:
::
>>> leaf = rhythmtreetools.RhythmTreeLeaf(5)
>>> leaf((1, 4))
Selection(Note("c'1"), Note("c'4"))
Returns sequence of components.
'''
pulse_duration = durationtools.Duration(pulse_duration)
total_duration = pulse_duration * self.preprolated_duration
if self.is_pitched:
return notetools.make_notes(0, total_duration)
return resttools.make_rests(total_duration)
def durate_pitch_contour_reservoir(pitch_contour_reservoir):
instrument_names = [
'First Violin',
'Second Violin',
'Viola',
'Cello',
'Bass',
]
durated_reservoir = {}
for i, instrument_name in enumerate(instrument_names):
long_duration = Duration(1, 2) * pow(2, i)
short_duration = long_duration / 2
rest_duration = long_duration * Multiplier(3, 2)
div = rest_duration // Duration(3, 2)
mod = rest_duration % Duration(3, 2)
initial_rest = resttools.MultimeasureRest((3, 2)) * div
if mod:
initial_rest += resttools.make_rests(mod)
durated_contours = [tuple(initial_rest)]
pitch_contours = pitch_contour_reservoir[instrument_name]
durations = [long_duration, short_duration]
counter = 0
for pitch_contour in pitch_contours:
contour = []
for pitch in pitch_contour:
contour.extend(leaftools.make_leaves([pitch], [durations[counter]]))
counter = (counter + 1) % 2
durated_contours.append(tuple(contour))
durated_reservoir[instrument_name] = tuple(durated_contours)
return durated_reservoir