def __init__(self,
nseq_name,
nseq_temp,
nseq_posn,
nseq_nat_posns,
nseq_modes=[]):
""" Arguments:
nseq_name: name of scale.
nseq_temp: temperament for scale.
nseq_posn: position of notes in scale.
nseq_nat_posns: natural note positions for notes in scales.
nseq_modes: a sequence of modes for the scale, listed in order of
position.
"""
if not nseq_modes:
noteseq.__init__(self, nseq_name, NSEQ_SCALE, nseq_temp, nseq_posn,
nseq_nat_posns)
return
noteseq.__init__(self, nseq_name, NSEQ_SCALE, nseq_temp, nseq_posn,
nseq_nat_posns, "", [nseq_modes[0]])
new_nseq_pos = nseq_posn
new_nseq_nat_pos = nseq_nat_posns
# This creates more instances of noteseq_scales - all for the different modes.
# By creating them, they will be automatically connected to the appropriate
# temperament's dictionary.
for i in range(1, len(nseq_posn)):
new_nseq_pos = rotate_and_zero(new_nseq_pos, 1, nseq_temp.no_keys)
new_nseq_nat_pos = rotate_and_zero(new_nseq_nat_pos, 1,
nseq_temp.no_nat_keys)
OurNewScale = noteseq_scale(nseq_modes[i], nseq_temp, new_nseq_pos,
new_nseq_nat_pos)
def __init__(self, nseq_name, nseq_temp, nseq_posn, nseq_nat_posns,
nseq_modes = []):
""" Arguments:
nseq_name: name of scale.
nseq_temp: temperament for scale.
nseq_posn: position of notes in scale.
nseq_nat_posns: natural note positions for notes in scales.
nseq_modes: a sequence of modes for the scale, listed in order of
position.
"""
if not nseq_modes:
noteseq.__init__(self, nseq_name, NSEQ_SCALE, nseq_temp,
nseq_posn, nseq_nat_posns);
return;
noteseq.__init__(self, nseq_name, NSEQ_SCALE, nseq_temp, nseq_posn,
nseq_nat_posns, "", [nseq_modes[0]]);
new_nseq_pos = nseq_posn;
new_nseq_nat_pos = nseq_nat_posns;
# This creates more instances of noteseq_scales - all for the different modes.
# By creating them, they will be automatically connected to the appropriate
# temperament's dictionary.
for i in range(1, len(nseq_posn)):
new_nseq_pos = rotate_and_zero(new_nseq_pos, 1,
nseq_temp.no_keys);
new_nseq_nat_pos = rotate_and_zero(new_nseq_nat_pos, 1,
nseq_temp.no_nat_keys);
OurNewScale = noteseq_scale(nseq_modes[i], nseq_temp, new_nseq_pos,
new_nseq_nat_pos);
def get_posn_for_offset(self, rotate_by=0, slice=None, raz = False):
""" For this noteseq, output its positions relative to its first
note, then rotates the sequence (by rotate_by), then slices
it (using slice, if not none). If and only if raz is True, the
result is rotated-and-zeroed.
"""
if slice:
modulus = self.nseq_temp.no_nat_keys;
multisliced = multislice(self.nseq_posn, slice, offset=rotate_by,
mod = modulus);
if raz:
return rotate_and_zero(multisliced, 0, self.nseq_temp.no_keys);
else:
return multisliced;
else:
if raz:
return rotate_and_zero(self.nseq_posn, rotate_by,
self.nseq_temp.no_keys);
else:
return rotate(self.nseq_posn, rotate_by);
def get_posn_for_offset(self, rotate_by=0, slice=None, raz=False):
""" For this noteseq, output its positions relative to its first
note, then rotates the sequence (by rotate_by), then slices
it (using slice, if not none). If and only if raz is True, the
result is rotated-and-zeroed.
"""
if slice:
modulus = self.nseq_temp.no_nat_keys
multisliced = multislice(self.nseq_posn,
slice,
offset=rotate_by,
mod=modulus)
if raz:
return rotate_and_zero(multisliced, 0, self.nseq_temp.no_keys)
else:
return multisliced
else:
if raz:
return rotate_and_zero(self.nseq_posn, rotate_by,
self.nseq_temp.no_keys)
else:
return rotate(self.nseq_posn, rotate_by)
