The amazing Midiwiz, Ed Eagan, plays the Eagan Matrix of the Haken Continuum using the Moog MIDI Ethervox theremin as a trigger. This particular sound is very “experimental” and is unlikely to excite the more traditional musicians among us, but this is only one of countless possibilities.
In case anyone is wondering, the strange looking device to the left of the E’Vox is a Skot Wiedmann synthesizer.