Lots of good points there, cooperman. I myself never sing what I call "deep" blues (Delta, etc.) because I don't feel that I can bring any of the feeling and depth to it that it needs - I'm white, English, etc. However, as I said further up the thread, the blues as a musical form is very welcoming and hospitable, and I love playing it. I also feel more comfortable with what you might call the "vaudeville/jazz" edges of the blues spectrum - jug band music, Jelly Roll Morton stuff like "Winin' Boy" and "Buddy Bolden's Blues" - and also some of the lighter, Piedmont-style music from, say, John Hurt or Etta Blake, Libba Cotten, etc. This stuff says to me: "Play me!"