Over the course of their decades-long existence, Roomful of Blues effectively became a franchise unto themselves, establishing a sound that endured despite nearly constant changes in their lineup. More than 45 musicians have been part of Roomful of Blues since their formation in 1967, and a number went on to notable careers of their own: Duke Robillard, Ronnie Earl, Ron Levy, Al Copley, Lou Ann Barton, and Sugar Ray Norcia. While Roomful of Blues started out playing blues with a strong rock influence, they evolved into modern purveyors of jump blues, featuring a mighty horn section. The band obviously has a stellar reputation as a concert act, and 2013's 45 Live demonstrated that nearly a half century on, they've never lost their ability to work a crowd.