I know John Mayer is a power pop sex symbol to millions of pre/post pubescent girls.  But his bass player must be a theory junkie or something.  I decided that I ws going to learn the song No Such Thing because one of my buds always plays it when we're warming up for rehearsal or gigs.  Easy to learn?  No such thing.  I actually had to bust out with some tablature.  This guy is good.