I love the Super Mario Bros. theme song and all of its interpretations. I'm also fascinated by Nikola Tesla's (aka David Bowie from The Prestige) body of work. Anyways, this video marries my two geek interests in a pretty awesome way.
No speakers were used, the music you hear comes from the sparks generated by the coils. Apparently they were pretty loud too measuring over 110db (120db is a jet plane taking off)