True when expr is a meter with binary-valued duration:
abjad> from abjad.tools import timesignaturetools
abjad> timesignaturetools.is_time_signature_with_equivalent_binary_representation(contexttools.TimeSignatureMark((3, 12)))
True
Otherwise false:
abjad> timesignaturetools.is_time_signature_with_equivalent_binary_representation(contexttools.TimeSignatureMark((4, 12)))
False
abjad> timesignaturetools.is_time_signature_with_equivalent_binary_representation('text')
False
Return boolean.