Universal Music Theory Library - v0.12.0
    Preparing search index...

    Interface OPTICResult

    A chord under the OPTIC equivalences, each one added to the previous (O, OP, OPT, OPTI, OPTIC), in 12-TET pitch classes.

    interface OPTICResult {
        C: number[];
        cardinality: number;
        I: number[];
        O: number[];
        P: number[];
        T: number[];
    }
    Index

    Properties

    Properties

    C: number[]

    OPTIC: + cardinality - doublings removed: the set class's prime form

    cardinality: number

    Number of distinct pitch classes

    I: number[]

    OPTI: + inversion - the more compact of T and its inversion's T

    O: number[]

    O: octave equivalence - pitch classes in voice order, doublings kept

    P: number[]

    OP: + permutation - pitch classes sorted, doublings kept

    T: number[]

    OPT: + transposition - the most compact rotation (normal form), starting on 0