I know I use the Roland GR-33 MIDI module with my Chapman Stick and in can be used with a guitar.... But it's very different than a keyboard: plucking strings is not like hitting a key:) It has good and bad. It's not as control but because it's not as controled, you can do things with a guitar synth you can't do on keys... So everyone seems to advise to go with a keyboard rather than staying with a mouse and clicking the little boxes on Fruity then?