During a recent BBC session promoting their forthcoming Volume Two, Zooey & Matt delivered an acoustic-and-vocal rendition of "Thieves," a lovesick, AM-radio throwback tapping the same vein marked up by their dusty, disarming debut. Deschanel's earnest vocals crib from the school of playful twang and patient melodic arcs idealized by Nashville greats like Loretta Lynn and Patsy Cline, and "Thieves" ...