def _get_likely_multiplier_of_components(components):
pass
from abjad.tools import scoretools
from abjad.tools import iterationtools
from abjad.tools import leaftools
from abjad.tools import selectiontools
from abjad.tools import sequencetools
assert all(isinstance(x, scoretools.Component) for x in components)
chain_duration_numerators = []
for expr in \
iterationtools.iterate_topmost_tie_chains_and_components_in_expr(
components):
if isinstance(expr, selectiontools.TieChain):
chain_duration = expr._preprolated_duration
chain_duration_numerators.append(chain_duration.numerator)
if len(sequencetools.truncate_runs_in_sequence(
chain_duration_numerators)) == 1:
numerator = chain_duration_numerators[0]
denominator = mathtools.greatest_power_of_two_less_equal(numerator)
likely_multiplier = durationtools.Multiplier(numerator, denominator)
return likely_multiplier
def _scale_contents(self, multiplier):
from abjad.tools import iterationtools
for expr in \
iterationtools.iterate_topmost_tie_chains_and_components_in_expr(
self[:]):
expr._scale(multiplier)
