David Hamburger has appeared at Merle Fest and the Kerrville and Philadelphia Folk Festivals, toured with Joan Baez, and performed with Tony Trischka, Duke Robillard, Freedy Johnston and Cindy Cashdollar, among others. His guitar, slide guitar and dobro playing can be heard on his solo albums Indigo Rose and David Hamburger Plays Blues, Ballads and a Pop Song and with the Grassy Knoll Boys on their debut CD, Buckeyed Rabbit. David is also a contributing editor to Acoustic Guitar and the author of a dozen books, including the award-winning "Beginning Blues Guitar" and "The Acoustic Guitar Method."