Pitch 4 Stage is Midicontrolled Midi-Pitch-Shifter... you have the problem that when you want to pitch your synths over several octaves? And then must use 4 Switches- that you dont have? I use a BCR2000, just take a button, change it to "inc" and set the Val1 to 4 and val2 to 1. No you switch thru 4 pitch stages by simply pressing One button!