Nashville’s Old Crow Medicine Show plays string-band music, but it’s no nostalgia act—on its third album, the group raises a raucous ruckus while singing about everything from methamphetamine abuse to the murder of Dr. Martin Luther King Jr. Meanwhile, a trio of rock veterans (producer Don Was, keyboardist Benmont Tench and drummer Jim Keltner) help the band to fill out its sound without compromising its scrappy spirit. Critics often gripe that OCMS has yet to capture the energy of its vaunted stage show on record; carried along by the strength of its songs, Tennessee Pusher suggests that it doesn’t really have to.