As husband-wife couples go in the world of music, it is a challenge to find a duo as well-fitted and naturally prolific as that of singer/guitarist Susan Tedeschi and guitarist Derek Trucks. They are both heavily steeped in the blues tradition, yet open to far-ranging influences including rock, gospel, jazz and World music. Each has produced recordings that share a sensibility best described as a swampy mix of rootsy, rockin’ American music. The two have guested on each other’s albums, toured together intermittently, and last year they each received individual Grammy nominations in the category of “Best Contemporary Blues Album” for their 2009 albums, Tedeschi for Back To The River and Trucks for Already Free (which he won). As well, they often perform together with the Allman Brothers Band—with whom Trucks continues to play as co-lead guitarist.