Sven Všth
Fire (Richard Bartz remix)
Fire Works - Virgin Schallplatten GmbH (2003)

  In psycho-acoustics there are these things called "Shepard's Tones". They are basically a finite set of tones that when played in sequence and mixed together give the sense that each tone is higher than the ones preceding it, and lower than the ones following it. So when listening to them you get the impression that the pitch is going up constantly. 

I don't know if that's what is going on here. It's a dope track regardless.