I understand that this is probably a huge undertaking to code from scratch, but there is some code out there that could used an interim option, ie: http://www.surina.net/soundtouch/ which in my opinion sounds nice on most non percussive material, but even percussive types of sounds work ok so long as the tempo changes aren't too extreme.
I have also recently seen another free code offering that looked very promising but it slips my mind at the moment...
But then again, maybe Usine is too complex to incorporate these type of third party offerings?
Also very popular and good for percussive material is the "rex" style slicing of loops, that I can't imagine would be too difficult to realize in Usine?
Anyways, some food for thought for Usine v6...
