On a related note, a tech metal band called "After the Burial" wrote a breakdown according to pi. The song is actually called "Pi (The Mercury God of Infinity)"... and for those of you who are unfamiliar with the term "breakdown" (in metal these days)... it's typically just chugging a certain pattern on a low note (sometimes a few more) with everyone in sync.
Here's After the Burial performing Pi live: http://www.youtube.com/watch?v=i_Msy-YUs4Y (The Pi pattern starts at 1:10 but I like the intro hehe...)