Double 180 gm vinyl in gatefold sleeve includes five tracks not available on CD. 2015 album from the acclaimed singer/songwriter. The Bluegrass Sessions is an album unlike any other in his storied catalog. Inspired by the bluegrass and acoustic music he grew up around, Keen has put his unique stamp on standards and other beloved tunes by Flatt & Scruggs, the Carter Family, Jimmie Rodgers, even Richard Thompson. Special guests include Lyle Lovett and Natalie Maine's on vocals, Nickel Creek's Sara Watkins on fiddle, and Danny Barnes on banjo.