Well, with the set-up I saw yesterday. There's not a way to adjust pitch in a controlled manner. I know you're not looking for something "musical". But if you can't modulate a sustained pitch, you're still going to be limited from a sonic standpoint. You could modulate pitch with envelopes... but then your pitch will change in accordance with the envelope.
The varigate 4+ offers pitch from what I understand. So that might be a good option if you're interested.