Shovels & Rope is the Charleston, South Carolina–based duo of Cary Ann Hearst and Michael Trent. They perform as an energetic two-piece band, stirring up a righteous racket with two old guitars, a handful of harmonicas, the occasional keyboard, and a junkyard drum kit harvested from an actual garbage heap and adorned with tambourines, flowers and kitchen rags. But the songs are the deadliest arrows in this duo’s quiver.