SoundManager2 onid3（）没有触发

function playNextSongInQueue()
{
    // Get the first element of the songQueue array
    var nextSongInQueue = songQueue.shift();

    // Start playback from the queue
    var jukeboxTune = soundManager.createSound({
        id: 'currentTune',
        url: 'audio/' + nextSongInQueue.name,
        onload: function() {
            this.play();
        },
        onid3: function() {
            alert('ID3 present!');
        },
        onfinish: function() {
            this.destruct();    // Destroy this sound on finish
            songFinish();       // Run the songFinish() function, so decide what to do next
        }
    });

    jukeboxTune.load();
    //jukeboxTune.play();           // The jukebox running!

    songPlaying = true;             // Set songPlaying flag
    updateSongQueueDisplay();       // Refresh the song queue display (for debug)

    return nextSongInQueue.name;
}