New in version 2.0.
Calculate harmonic counterpoint interval-class from pitch_carrier_1 to pitch_carrier_2:
abjad> pitchtools.calculate_harmonic_counterpoint_interval_class_from_named_chromatic_pitch_to_named_chromatic_pitch(pitchtools.NamedChromaticPitch(-2), pitchtools.NamedChromaticPitch(12))
HarmonicCounterpointIntervalClass(2)
Return harmonic counterpoint interval-class.
Changed in version 2.0: renamed pitchtools.calculate_harmonic_counterpoint_interval_class_from_named_pchromatic_pitch_to_named_chromatic_pitch() to pitchtools.calculate_harmonic_counterpoint_interval_class_from_named_chromatic_pitch_to_named_chromatic_pitch().