Thanks, Mark Clark, for giving credit where it is due. I have not seen an equally good statement exlpaining Bluegrass music. I did read an article about Bluegrass harmony by Mike Seeger. High lead, baritone sings the root (sometimes above the tenor), bass only on gospel songs, etc. I think the origional formula Bill Monroe developed excludes female voice but that could be a dangerous statement.

I have two CD's with Chubby Wise: "Good Old Boys" rec. 1975 by Jerry Garcia (Grateful Dead) GDCD40122 and "Mac and Chubby" (Wiseman and Wise) rec. early '80's MAC~W 107. Not sure where Wise's roots go, but greats like Kenny Baker, Benny Martin and Vassar Clements were raised on swing. Joe Venuti and "Stuff" Smith.