def __init__(
self,
pitches=None,
):
if pitches is not None:
if not isinstance(pitches, collections.Iterable):
pitches = [pitches]
pitches = pitchtools.PitchSet(
items=pitches,
item_class=pitchtools.NumberedPitch,
)
self._pitches = pitches
def has_duplicates(self):
r'''Is true when segment has duplicates. Otherwise false.
.. container:: example
>>> segment = abjad.PitchSegment([-2, -1.5, 6, 7, -1.5, 7])
>>> segment.has_duplicates()
True
.. container:: example
>>> segment = abjad.PitchSegment("c d e f g a b")
>>> segment.has_duplicates()
False
Returns true or false.
'''
from abjad.tools import pitchtools
return len(pitchtools.PitchSet(self)) < len(self)
def has_duplicates(self):
r'''True if pitch segment has duplicate items. Otherwise false.
::
>>> pitch_class_segment = pitchtools.PitchSegment(
... items=[-2, -1.5, 6, 7, -1.5, 7],
... )
>>> pitch_class_segment.has_duplicates
True
::
>>> pitch_class_segment = pitchtools.PitchSegment(
... items="c d e f g a b",
... )
>>> pitch_class_segment.has_duplicates
False
Returns boolean.
'''
from abjad.tools import pitchtools
return len(pitchtools.PitchSet(self)) < len(self)
def create_named_pitch_set_in_pitch_range(self, pitch_range):
r'''Creates named pitch-set in `pitch_range`.
Returns pitch-set.
'''
if not isinstance(pitch_range, pitchtools.PitchRange):
pitch_range = pitchtools.PitchRange(
float(pitchtools.NamedPitch(pitch_range[0])),
float(pitchtools.NamedPitch(pitch_range[1])))
low = pitch_range.start_pitch.octave_number
high = pitch_range.stop_pitch.octave_number
pitches = []
octave = low
while octave <= high:
for x in self:
pitch = pitchtools.NamedPitch(x, octave)
if pitch_range.start_pitch <= pitch and \
pitch <= pitch_range.stop_pitch:
pitches.append(pitch)
octave += 1
return pitchtools.PitchSet(
items=pitches,
item_class=pitchtools.NamedPitch,
)
def _make_dicv(*named_pitch_classes):
pitch_set = pitchtools.PitchSet(named_pitch_classes)
return pitchtools.IntervalClassVector(
items=pitch_set,
item_class=pitchtools.NamedInversionEquivalentIntervalClass,
)