Music made entirely from...

everyday and office noises: motors, oscillators, alarms, beepers, phones, toys, video games, door bells, office machines, etc (sounds a bit like Touch's ringtones CD).
Dot Matrix Printers and Copying machine music.
carved playout groove of a vinyl record and the operational sounds of the Califone turntable.
earthquake sounds as recorded by seismographs.
Windows system noises.
house music made from gospel samples.
found samples at a conference.
clapping hands and trains.
samples of Beck's music.
sounds of glass objects.
rational intervals (Bach)
animal sounds.
food.
mailing lists.

via redcorp