PI Gives Me a Headache!

Here's two very different ways of representing the irrational number pi. The first [via information aesthetics] is visual and the second [www.avoision.com] is auditory - it's tough to call it musical, because it sounds like a cat walking across a piano.
In this figure, each of the 10 possible digits (0-9) of the number pi is displayed as a unique color. Likewise is the audible version, you first select 10 notes (again corresponding to 0-9) and the first 10,000 digits of pi are converted to "musical" notes.