This just came round on the Yahoo! Genetic Programming list:
http://darwintunes.org/please-help-us-analyse-the-data
by doing the
http://darwintunes.org/post-experiment-survey
There’s about ten pieces of music (four bars each) that were artificially evolved (using genetic programming). The protagonists are now doing a survey to get a measure of whether they’re any good. I thought most of them were pretty awful and sound like a sadistic Squarepusher doing commercial jingles for hungover Christmas shoppers.