Recorded largely in Nashville's famed RCA Studio B, Dave Rawlings' solo bow is as rooted in old-timey verisimilitude as his work with Gillian Welch. His tenor and understated acoustic-guitar work carry songs like "Ruby," which packs a Seventies Topanga Canyon vibe. The head-turners are the unplugged "To Be Young (Is to Be Sad, Is to Be High)," written with Ryan Adams, and Conor Oberst's "Method Acting": songcraft as soul-baringly timeless as Twenties Delta blues.