Music maestro

Hey,

I got a little question to ask u guys.
I'm looking for some sort of dj program so I can mix up some songs and more important, speed them up or slow them down. So a pitch control is needed :)

Can someone help me out with this??

It would be nice if it's free :>

Allready tried some programs like DJ Mix Pro but they are all register etc.

Thnx in advance!!

Greets,

Pol