I’m a bit late to the party here (Pi Day was last Monday), but I only just came across this video and it’s too lovely not to post.
Austin-based musician Michael John Blake has recorded a musical homage to everyone’s favourite mathematical constant by assigning a number to each note of the scale and playing π (to 31 decimal places). Although the video’s been taken down from YouTube (due to a copyright claim!), it’s still available to watch via New Scientist:
It starts off quite sparsely, but by the 2:30 mark it’s morphed into a pocket symphony that Sufjan Stevens would be proud of. Next up: a dubstep version of the Planck constant?