One of the earliest figures in electric blues came not from Mississippi but from Texas and moved not to Chicago, but to Los Angeles. T-Bone Walker incorporated elements of jazz into his electric blues in the mid-1930s. Later he did move to Chicago, where Muddy Waters, Howlin’ Wolf, Jimmy Reed, and bassist/songwriter extraordinaire Willie Dixon all found voltage and fame. The sound of electric blues spread to Britain via the same Muddy Waters, in what was surely one of the most significant tours in popular music history. His 1958 concerts initially amazed but soon delighted UK audiences a...