New in version 1.1.
True when all elements of expr are pitch tokens. Otherwise false:
abjad> pitchtools.all_are_chromatic_pitch_class_name_octave_number_pairs([('c', 4), ('d', 4), pitchtools.NamedChromaticPitch('e', 4)])
True
Return boolean.
Changed in version 2.0: renamed pitchtools.is_pitch_token_collection() to pitchtools.all_are_chromatic_pitch_class_name_octave_number_pairs().