Thanks Little Hawk and Steve. I didn't know that "Blind Willie McTell" was from those sessions, although I do know the song and think it's a beauty. Mick Taylor, a great guitarist, but a rather less distinguished songwriter, was doing the song last time I saw him. I know I have heard Dylan doing it on some bootleg somewhere. No arguments there Rolfyboy, but I'm afraid that your mathematical skills are on a par with mine...