New traditionalists Chatham County Line are back with their most ambitious album to date. The North Carolina quartet's fourth album IV, is a boozy blend of Americana and loose acoustic rockers that exhibits the band's ever-evolving style. CCL continues their dedication to traditional instruments by using their love for bluegrass as a base on which to layer an eclectic blend of roots music. Bluegrass workouts like "The Carolinian" stand beside pop geared numbers such as "Chip of a Star" and the hard soul of "Birmingham Jail." The progression seen on IV is helped along by indie pop musician and producer Chris Stamey (Yo La Tengo, Alex Chilton, Alejandro Escovedo), making for a starkly heartfelt testament to making the past new again.