I may be getting this quote slightly wrong, but a few years ago I went and saw Béla Fleck and the Flecktones. If I remember right, Rhonda Vincent opened. The one thing I remember about that concert, besides the great music, was Victor Wooten (one of the best bass players I've ever seen) saying that "bluegrass musicians are some of the best musicians in the world".
If you've never gone out and listened to some bluegrass or even listened to a band that's brave enough to claim bluegrass then you are probably tone deaf or missing something. This video will make you love Steve Martin even more than you already do. He's good and he's modest.