Evolution of music

Here's something completely different!

Darwin Tunes was/is an experiment at Imperial College, London, starting with a selection of short audio loops that "sexually reproduce and mutate" based on the selective influence of listeners who rated the loops’ aesthetic qualities.  The experimenters claim their work shows how cultural dynamics can be explained in terms of competing evolutionary forces.

Listen to an explanation and samples of the evolution at:
http://soundcloud.com/uncoolbob/sets/darwintunes/
The scientific paper resulting from the experiment is at: http://www.pnas.org/content/early/2012/06/12/1203182109