Gary Moore’s SynthAxe

This guitar was most famously used in the Out in the Fields video released in 1985. 

The SynthAxe is a fretted MIDI controller that uses electronic synthesizers to produce sound. It was created in the mid-80s by Bill Aitken, Mike Dixon, and Tony Sedivy, in a joint venture funded by Richard Branson, but less than 100 units were ever made.