Not bought the software yet, but I do hope the 2nd hand Akai MPK Pro 61 I spent some money on some weeks ago will do
fine if I deside to try out vArranger2. In fact, to try vArranger is the only reason I bought it ....
Anyway, there is no demoversions, and it looks like every time it's a softwareupdate, you have to ask for it at the forum.
But as far as I can see at his forum, Dan give great support.