This video shows the Roland GC-10 Guitar Controller with the Roland GI-20, driving Native Instruments REaktor 5.0 run as a standalone application on a Intel Mac.
Video demo of the rare Roland GC-10 13-pin guitar synthesizer controller. These controllers were primarily sold in Japan, often with the Roland GI-10, guitar to MIDI interface.
The GC-10 was never sold in the United States, and I cannot find any reference to the GC-10 in any English language Roland product brochures.
Lots of surprising sounds coming from a guitar! If you’ve used the GC-10/GI-20, leave a comment with your thoughts!