Drupal Mp3 store module

I need an Mp3 player drupal module built similar to that of Itunes store. It will need to be able to play the audio, and also have an "add to cart" button, and a "buy" button to the side of the audio. The main player will need to be translucent so that you can see the page below, say 75%. It will need to be sleek, and attractive looking with the option of changing the "add to cart" and "buy" button colors in the module settings. Thanks and look forward to working with the winner!