At his high-energy, 1970s peak as a bandleader, James Cotton was a bouncing, sweaty, whirling dervish of a bluesman, roaring his vocals and all but sucking the reeds right out of his defenseless little harmonicas with his prodigious lung power. Due to throat problems during his latter years, Cotton's vocals were no longer what they used to be, but he remained a masterful instrumentalist for decades. Cotton had some gargantuan shoes to fill when he stepped into Little Walter's slot as Muddy Waters' harp ace in 1954, but for the next dozen years, the young Mississippian filled t...