well if you are into kellar...i have a good freind alan..and he is a one man band..and he loops and records over himself...he has lots of funky toys...he's great..check out free live music downloads at alanvasquez.com hope you take the time to visit...
Keller is the best at what he does. He uses a 6, 10, 12 string guitars. I think all of em are Guilds. I have seen him play a 10 string banjo too, plus the bass, keyboard, "zilla", and all the lil toys are the best. But yes his guitar abilities far amaze me. I think he uses his pointer finger to use bar chords as bases for other chords. I dont know how to explain it. If you have never seen Keller live-GO check him out...
Brunette is in open tuning, that's when he does barring sometimes. Not all are guilds... a few are custom.