Update: I'm in process of:
1) putting together a video demo of the range of different background sounds that can be achieved
2) adding more sound files to the package so you can have a choice of sounds right away (you can also use your own sound files)
3) including pre-formatted code (in addition to the pseudo-code) to save you time adding this code to your game
In a few more days I should have the demo up and an updated package.