i made the same thing a while back, and visualised it with gem:<br><br><a href="http://puredata.hurleur.com/sujet-446-this-going-freak">http://puredata.hurleur.com/sujet-446-this-going-freak</a><br><br>if you use a piano sample and set the speed correctly, the audio will be almost exactly the same.
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