On: Stallman on Hacking

A contemporary and more fitting example of a musical hacker would be Imogen Heap.

I've seen videos of her constructing songs from audio loops of her own voice in real time.

Wow, that's quite amazing:

http://www.youtube.com/watch?v=25VGdNU3nrU

I don't know to what extent some of the stuff is preprogrammed (presumably the loop lengths are), but it really seems like all the sounds were made during this one recording.