def straight_bass(
input_row,
phrase_count=2,
rhythm_tree=(
(2, 2),
(2, 2),
),
input_start_beat=0,
):
beat_counter = input_start_beat
bass_line = ImaginaryLine()
for i in range(phrase_count):
bass_phrase = ImaginaryPhrase()
for cell_r in rhythm_tree:
bass_cell = ImaginaryCell()
for r in cell_r:
if r > 0:
input_event = input_row.event_at_beat(beat_counter)
# TO DO... think of being more flexifble to pull either cell/phrase, parent/grandparent
input_node = input_event.parent.parent
input_pitches = input_node.note_pitch_set
my_pitch = chords.get_diatonic_root(input_pitches) - 24
else:
my_pitch = "R"
bass_cell.append(calliope.Event(beats=r, pitch=my_pitch))
beat_counter += abs(r)
bass_phrase.append(bass_cell)
bass_line.append(bass_phrase)
return bass_line
def pad(self, beats=1, with_command=True):
if beats > 0:
floor_beats = math.floor(beats)
remainder_beats = beats - floor_beats
pad_cell = ImaginaryCell(rhythm=(1, ) * floor_beats,
pitches=("S", ) * floor_beats)
if remainder_beats:
pad_cell.append(
calliope.Event(beats=remainder_beats, pitch="S"))
if with_command:
pad_cell.events[0].tag("\\freePad")
self.append(pad_cell)
return pad_cell
