With a slow, deliberate build, the Ballroom Thieves make their presence known onstage immediately as the first chord is struck, transforming any size room, whether it be a large ballroom or a small club, into a remarkably intimate environment. Formed in 2011, The Ballroom Thieves take the sincere, narrative blueprint of folk music and infuse it with the attitude of rock, the soul of blues, and the sweat and fervor of a revival tent. That spirit makes its way into both their recorded music as well as their live performances, as Martin Earley (guitar, vocals), Devin Mauch (percussion, vocals), and Calin Peters (cello, vocals) attack their instruments and harmonies with the same energy onstage as in the studio. The Thieves' new album, "A Wolf in the Doorway," finds the trio taking the very idea of "roots" and creating ways to make its sound progress and its encompassing spirit grow.