I've made a nice custom audio .bin file for Pro to share... I left key Metallica songs but added other rock mashups/megamixes + some newer stuff with a beat. Sparky song much better in my opinion.
Subwoofer highly recommended... Let me know what you think!
https://drive.google.com/open?id=0B1lh5GGWiv7ydER2MmRRMDFhUEE