Function getChordVoicing

Returns
    | {
        mutedStrings: number[];
        positions: {
            chroma?: number;
            degree: 1
            | 3
            | 5
            | 7;
            disabled?: boolean;
            fret: number;
            inBox?: boolean;
            interval?: string;
            midi?: number;
            note?: string;
            noteWithOctave?: string;
            octave?: number;
            octaveInScale?: number;
            string: number;
        }[];
    }
    | null

The chord voicing.