Shawn Rudiman is a practitioner of the electro/house/techno genre who is based in Pittsburgh, USA. His Myspace profile comments that, when performing live, he prefers to play without the use of computers or software.
Shawn’s EP ‘7 Speed Derailleurs’ includes 3 tracks:
The derailleur illustrated on the cover is a Shimano RX100, which did, indeed, start life as a seven speed derailleur (later becoming an eight speed).
You can listen to (and/or buy) ‘7 Speed derailleurs’ in all the usual places - like iTunes.