In a musical landscape increasingly populated with acts striving to keep up with trends, this endearing sister duo draws more inspiration from the rural Appalachian, country and bluegrass compositions of the 1950s than the latest Nashville No. 1. The majority of the disc travels through a traditional country landscape, including a haunting version of Bill Monroe’s “The One I Love Is Gone,” George Jones’ “Why Baby Why,” the self-penned “Tennessee Me,” Buck Owens’ “My Heart Skips a Beat” and a quietly stunning rendition of Hank Williams’ “House of Gold.” Their honeysuckle-sweet, flawless family harmonies recall sibling units such as The Everly Brothers or The Andrews Sisters. Producer T Bone Burnett had the foresight to infuse the album’s recording with vintage microphones and techniques that would have been used on recording sessions half a century ago. With an upcoming PBS special in the works featuring Jakob Dylan and Elvis Costello, it’s safe to say The Secret Sisters’ secret is out.