There's been a few of em. Recently, it's been The Passing of the Blue Crown by Sixto, Steppo and zircon. Obviously, my guitar play is pitiful compared to Sixto's, though since he doesn't break out into crazy guitar solo in this one, it's easy to follow.
I think the majority of music I try to work out are ones made by the community here (or people who are close to it at least) since tabs and sheets are hard to come by.