I seem to be having a problem like that in the Nexus 7 Chrome browser, without using Cocoon.
The title music, and map screen music, are playing on the gameplay screen where it repeatedly has stop instructions. But instead plays multiple overlapping music, until the browser finally crashes.
Anyone have a device with Chrome browser that can tell me if they get the same thing? http://visualparadox.com/games/cbb/
Works fine everywhere else, and my other games work fine on the Nexus.