Maybe I missed it somewhere, even though I scoured the site. How do know that this mp3 wasn't done with a guitar controller? I didn't see anywhere where it said a keyboard controller was used to produce that mp3. A guitar controller would make one heck of a difference in the outcome, capturing, as it would, all the nuances of a real guitar performance.

This whole post is going to sound pretty stupid if I happened to have missed the part where it said it was done on keyboard.

Of course, there's one way to tell. Download the SF and see if you can reproduce that clip.

chas