How to move subsections of a song around in Javascript

I want to be able to split a song loaded in an HTML5 audio in javascript into a number of sections of the song. Then I would like to be able to move those subsections around on the browser (meaning that song could be put out of order) and rejoin them to form the new song.

The problem is I don't know how to manipulate the song to get a bunch of subsections of the song and furthermore manipulate those subsections. To my knowledge the audio tag plays a single song at a time and that song can't be manipulated.

Is there a way to do this in javascript or in any audio framework right now?