/**
 * Musical boundary-aware analysis.
 * @param {AudioBuffer|Object} audioBuffer
 * @param {{bpm: number}} bpmData - tempo estimate driving bar-length candidates
 * @returns {Promise<Object>} best loop with 0..1 confidence
 * @throws when no candidate fits inside the buffer (gate named in the message)
 */
export function musicalLoopAnalysis(audioBuffer: AudioBuffer | any, bpmData: {
    bpm: number;
}): Promise<any>;