How can i get a callback,when my backgroundmusic is playing overed?

How can i get a callback,when my backgroundmusic which is achieved by simpleaudio is playing completely?

I don’t think you can using cocos2dx simpleAudioEngine.

In my app, I have scheduled a function call that checks if music is playing, if not then start a new track.

If there is a better way then I would also like to know.