🥧 Lo-Fi Pi
Russell Samora and Kevin Litman-Navarro created lo-pi radio:
Live lo-fi beats from the digits of pi, forever.
A little bit more about how it works (press the ? button on the site for more details):
How the sound works: Every note of the melody you hear is the next digit of pi, in order. Each digit is a note in the Fmaj scale. 0 and 9 are rests (silence). Digits are not skipped or changed, but we've created a set of simple rules (and some fiddly ones that aren't worth explaining) that decide when each note plays and how long it lasts to best match the underlying progression.
Surprisingly good background music!