I recently heard Doyle Lawson's "Children, Go Where I Send Thee." It was early in the morning, on my drive to work. I added my harmony and "got down" with the music and it made my day.Yep, would highly recommend Doyle Lawson.
Many of the bluegrass cd's have "guest" artists on them, i.e., Doc Watson, Tony Rice, David Grier, Bela Fleck, etc.; so it makes the money you invest into cd's more than worth the cost.