I recently picked up a PRO, and have made a few changes to Cleland's amazing code to suit my preferences. Namely, prioritising songs like Rubberband Man, Lakeshore Drive, Southern Nights and Fleetwood Mac's The Chain - These tracks now have a far more prominent role in the game and modes. I also swapped out a few track for higher-bitrate versions to improve sound quality a bit on a few songs.
Not claiming this to be 'my' code by any means, but if anyone wants to give this alternate Cleland code a try, or wants more info, feel free to send me a PM.
For the PRO only.
P.S loving this game! It's part pinball, part jukebox...