Emmylou Harris Hank Williams Sr. Steve Earle Lucinda Williams Gillian Welch Bill Monroe Alison Krauss The Carter Family Ralph Stanley Woody Guthrie Les Paul Ricky Skaggs Iris Dement Dolly Parton Bob Wills Gram Parsons Gene Autry Patty Griffin Kasey Chambers Roy Acuff Joan Baez Neko Case Lyle Lovett Union Station Justin Townes Earle The Seldom Scene Willie Nelson Dwight Yoakam Po Girl The Jayhawks Cowboy Junkies Dave Rawlings Machine Waylon Jennings Patty Loveless Gram Parsons &The Fallen Angels Dixie Chicks David Olney Chatham County Line Kris Kristofferson Nick Lowe Joni Mitchell Freakwater New Pornographers John Hiatt Dar Williams Little Feat Rodney Crowell Ryan Adams Tish Hinojosa