the baritone guitar is (like he said) 5 half-steps down from standard tuning, and Dave Matthews uses it alot on the Everyday album. He has a genesis electric baritone and it sounds amazing. I use the variax 500 and have modelled this guitar, and damn, it sounds amazing. I use that model in the background live for some nice heavy sound...just like you'd use a capo for the same chord changes but a different voicing -- this is the same thing, just down steps, and its more unique because capos are easier to use than picking up a different guitar, although, with the variax you dont NEED to switch guitars =)

for instance "The Space Between" starts off with A to G on a baritone...what a satisfying sound on that recording...

Acoustic baritone sounds cool, but not as useful imo.

ANd yes, staind does suck...

DAVE MATTHEWS RULES