Steve Earle and his current bunch of Dukes, perhaps the best assembled Dukes ever, take on the hits of Guy Clark with a spirit of reverent glee and invention in their new tribute record, Guy. The band offers max energy on such varied tunes, including the bluegrass rave-up “Sis Draper” and the talking blues memoir of “Texas 1947.” Guy is a saga of friendship, its ups and downs, and what endures at the end of the day, all told through music.