this is slightly off topic, but I found it very interesting and thought some other people on the list might find too... xavier serra is talking about the research carried out in the Music Technology Group at the Pompeu Fabra University of Barcelona. http://video.google.com/videoplay?docid=1001788948064844735 if you are very patient and listen till the end, you will be be rewarded with 4 "Pd"s and 3 "puredata"s. marius.