Watch the Raising Sand online guitar lesson by Jeff McErlain from Blues Guitar Fakebook: Rhythm Vol. 2
"Raising Sand" is based on Lightnin' Slim's "Bad Luck and Trouble". A nice blues form in which the vocals come in on the IV chord. It's not an unusual variation once you know it and become aware of it. Once again, it's these little variations that can make for a really exciting evening of the blues.