Erickson also used the digits of pi (as well as the constant e) as the basis for the melody of his Pi Symphony, which was performed by the Omaha Symphony Orchestra Chamber group and by Ruse Philharmonic of Bulgaria last year.

CNN: STORY HIGHLIGHTS

Michael John Blake, who made a big splash among nerds for his pi song in March, has taken some of the first digits of tau and put them to music. ( Check it out on YouTube).

CNN: STORY HIGHLIGHTS

The most recent attempt, by a Japanese computer scientist in 2002, found 1.24 trillion digits of pi.

BBC: 3.14 and the rest