PS Changing the speed is so funny :) It would be nice to have a window showing how much it is increased (much like the volume actually).
Yes, I also noticed that. And I also would suggest that we make the change "multiplicative" and not "additive" as it currently is. This corresponds much more to the way human perception works.
That would be a pretty trivial change. I have it the way it is for specific reasons although they don't make any difference to pytone since its more of a novelity rather than a feature. Perhaps the people using pytone for DJing might find it useful.
What factor would you use?