Computes the OPTIC equivalence classes of a chord given as pitches or pitch classes (12-TET semitones), in voice order: (0, 4, 7) → T [0, 4, 7], I and C [0, 3, 7].
Pitches or pitch classes, one per voice.
Computes the OPTIC equivalence classes of a chord given as pitches or pitch classes (12-TET semitones), in voice order: (0, 4, 7) → T [0, 4, 7], I and C [0, 3, 7].