import { Note } from '../note/note';
import { IntervalQuality } from './interval-quality';
export declare class Interval {
    protected _semitones: number;
    protected _simpleSize: number;
    protected _quality: IntervalQuality;
    constructor(quality: IntervalQuality, size: number);
    constructor(one: Note, two: Note);
    static fromString(name: string): Interval;
    get semitones(): number;
    get name(): string;
    get simpleSize(): string;
    get quality(): IntervalQuality;
    transposeUp(note: Note): Note;
    transposeDown(note: Note): Note;
    static ofSize(size: string): (interval: Interval | undefined) => boolean | undefined;
}
export declare namespace Interval {
    const perfectQualities: IntervalQuality[];
    const imperfectQualities: IntervalQuality[];
}