He was joined for a few numbers at the end by Mrs Peterson, Tamara Tramell, who most notably did a very Annie Mae Bullock inspired version of Proud Mary. She wore more clothes though; this was Yorkshire in January.
Peterson did switch to slide guitar for a fine medley of Muddy Waters' 'Hoochie Coochie Man' and Robert Johnson's 'Dust My Broom'. The latter song is of course most closely associated with Elmore James, who may possibly have been taught the song directly by Johnson. In one of those connections beloved of your bloggist, today is the one hundredth anniversary of James' birth. Here's one of his other songs that I am currently finding resonates with me: