Reply to How to Create this Effect (Gradually speeding up tempo of audio each measure to extre

I really dig this technique, I am not sure If I am accurately describing it but you can hear it in this track.

http://soundcloud.com/eatseverything...ng-worthy-tric
at 1:34

While taking a loop or audio clip and slowly increasing the pitch is easy in sequencer programs I cant figure out how to gradually increase the actual tempo from super slow to super fast and while slowly turning up the bpm in dj programs like tracktor is easy, I want to go way out of the spectrum that they allow. Any ideas or help would be much appreciated.