I think I recall the guitar that did the “singing” was one of the first-ever midi guitars, with on-board effects,made by Electra.
Could be wrong.
6 posted on 01/05/2012 9:53:11 PM PST by NDpapajoe
("Our Country isn't what it once was" -- --Hopey Changerton 8-2008 speaking to a 7-yr-old little girl)