The three full-time members of the string band known as the Carolina Chocolate Drops (Dom Flemons on guitar, jug, and harmonica, Rhiannon Giddens on banjo and fiddle, and Justin Robinson on banjo and fiddle -- Sule Greg Wilson sometimes sits in on percussion) met in 2005 at the Black Banjo Gathering at Appalachian State University in North Carolina, drawn together by their mutual love of bluegrass, "jass," jug music, and prehistoric country and rock. The acoustic musicians play a lively combination of standards and originals in these styles, sporting tongue-in-cheek, old-timey...