Musical variety has always been their calling card. Though metallic New York hardcore influenced the band's caustic early work, Clutch quickly turned down the path already navigated by Black Flag and Corrosion of Conformity, regressing from punk to the group's '70s rock roots. As Clutch's music increasingly leaned toward gearhead fare, it incorporated more avant-garde counterpoints, as evidenced in the mounting number of solos in the group's repertoire. Delfeayo Marsalis contributed a trombone piece to 1998's "Crackerjack," and 2000's Jam Room captured more-conventional live guitar and drum jams, in addition to a harmonica solo in "Big Fat Pig." On record and stage, singer Neil Fallon's story-driven raps are closer to Ted Nugent than to Kid Rock, and closer still to what the Nuge would sound like, fronting Black Sabbath. Clutch's studio work is more succinct, filled with throbbing low-end, wailing six-string action and badass titles like "Smoke Banshee." All of which makes for one hell of a show -- if you remember to bring earplugs.