Huh. I've never heard of that before, but it's an interesting idea for a Duel Disk.

*In a way, he could even see it being used as a different type of entertainment dueling. Duels that were also concerts. Or concerts that could become duels.*

Anyway, it sounds like you have the beginning cords of the song figured out, but you're still learning the strumming pattern for it, if I'm correct?