having reviewed the thread, I think the most useful (WITHOUT changing input parameters) are 2-finger power chords as per Mooman (my fiancee, a former rock guitarist, says she has to consciously try NOT to use them some times) and the slide guitar idea. Could he handle a slide or do the fingers not close well enough to manipulate the slide? Please let us know how this works out-- people determined to be musical WILL be musical and find a way to comunicate!