I have a theory: Thunder Dash is an evil enchantress (or enchanter, I suppose) who uses his powers to make unbelievably great music.
Seriously, you have to listen to his bluesy version of Evil Enchantress for double pianos. It is just so well done and it makes me really happy. And—even better—you can check out the sheet music and try playing it with a friend! Don't miss out on this one.
Thanks, Thunder Dash!