During the blues boom in England in the 60s there were many British blues bands, including as one of the finest Peter Green's Fleetwood Mac. In January 1969 Fleetwood Mac jamming in the Chess Studios in Chicago with Willie Dixon, SP Leary, Honeyboy Edwards, JT Brown and longtime pianist of Muddy Waters, Otis Spann. The result of these sessions was the classic "Blues Jam At Chess". The harmony between the band and Spann was so good that we decided to make common shots. Otis Spann is on this record is truly himself, soulful and inspired, totally relaxed beside his familiar drummer SP Leary. This in conjunction with Peter Green, this recording probably at the peak of his powers, gave rise to one of the most important blues album - is "The Biggest Thing Since Colossus" probably one of the most underrated blues albums. Lange not available on vinyl, now but from the original 1 / remastered 4-inch tape, is this LP in each panel cabinet.