import { type InstrumentType, type PlayTuneRes, type Tune } from '../api.js';
export declare function playFrequency(frequency: number, duration: number, instrument: InstrumentType, ctx: AudioContext, dest: AudioNode): void;
export declare function playTuneHelper(tune: Tune, number: number, playingRef: {
    playing: boolean;
}, ctx: AudioContext, dest: AudioNode): Promise<void>;
export declare function playTune(tune: Tune, number?: number): PlayTuneRes;
//# sourceMappingURL=tune.d.ts.map