Home › Forums › Products › Rackmount › Harmonizer 8000A › Reply To: Harmonizer 8000A October 26, 2009 at 5:34 pm #119335 IDeangelis Hi Sherif preset 2410 MIDI Harmony uses a MIDI keyboard to control pitch shifter. It works in a different way from what you may expect though. It shifts input in relation to Middle C (C4). best I
