robert johnson is one of my favorite artists of all-time because he poured his soul into just about every tune that i've heard recordings of him performing. some of the tunes on this cd collection are just novelty, but this track right here is the real thing... delta blues, baby! it doesn't matter when a bluesman's song sounds familiar or when it sounds like another one of his own tunes. that's the format. that's the way the blues goes, but it's significant that different takes of these tracks sound different from the one before.