Several years ago I caught Doc Watson's performance on the main stage of the Hardly Strictly Blue Grass Festival and became an immediate convert (ashamed to admit I had never listened to him before.) I went out and got a collection of earlier recordings of him and Clarence Ashley and just loved this Song of the Week, Tough Luck. It features Doc Watson on guitar and Clarence Ashley on banjo and vocals. I hope you enjoy.
If you ever saw Doc play I'd love to hear about it in the comments.