[gold stinger]

Thinking more about the card game, you could call the draw phase 'Song Browse', the Main Phase 'Song Select', which forces your opponent to play that song and watch them play it. 'Song Results' is damage calculation based off of your opponent's score, and your life in the card game being how much non-perfects you can get. Literally just brainstorming at this point in time.

This would also open up to Tiers of cards that you can use, and could allow for scaling in matches (say a D2 player trying to go against a D6 player, a D6 player using a D2 deck, and a D2 player using a D6 deck). Hell, that cost for a card to be used that I mentioned earlier could instead be used to point out the division of that card in a deck.