chordproject-parser/types/transformer/MusicTheoryHelper.d.ts

A TypeScript library for parsing and formatting ChordPro songs.

export declare class MusicTheoryHelper {
    static circleOfFifths: string[];
    static pitchClassMap: Record<string, number>;
    static reversePitchClassMap: Record<number, string>;
    static getNextInCircle(note: string, steps: number): string;
    static normalizeKey(key: string): string;
    static transposeKey(key: string, letterDiff: number, semiTones: number): string;
    static semiTonesBetween(note1: string, note2: string): number;
    static letterDiff(note1: string, note2: string): number;
    static getPreferredEnharmonic(noteStr: string, keyContext?: string): string;
}