New in version 2.0.
True expr is a chromatic pitch name. Otherwise false:
abjad> pitchtools.is_chromatic_pitch_name('c,') True
The regex ^([a-g,A-G])(([s]{1,2}|[f]{1,2}|t?q?[f,s]|)!?)(,+|'+|)$ underlies this predicate.
Return boolean.
Enter search terms or a module, class or function name.