import Exceptional from "../util/Exceptional";
export default class Degree {
    static size: number;
    private static _values;
    static TONIC: Degree;
    static SUPERTONIC: Degree;
    static MEDIANT: Degree;
    static SUBDOMINANT: Degree;
    static DOMINANT: Degree;
    static SUBMEDIANT: Degree;
    static LEADING_TONE: Degree;
    private constructor();
    static values(startingDegree?: Degree): Degree[];
    ordinal(): number;
    static valueOf(degreeString: string): Degree;
    static isValid(value: number): boolean;
    static fromValue(value: number): Exceptional<Degree>;
    getValue(): number;
    toString(): string;
}