Anders Beck
(Greensky Bluegrass Band)
Shine Delphi
Barry Graul (Mercy Me)
Keb Mo
Kevin Maul
Jay Starling
(Love Canon)
Mike Witcher
Zac Brown
Jerry Douglas
Tim Graves
Mark Lavengood
Bob Minner (Tim McGraw)
Josh Swift (Doyle Lawson and Quicksilver)
Brent Burke
(Rhonda Vincent)
Andy Dunnigan (The Lil Smokies)
Jacob Groopman
Rebecca Lovell (Larkin Poe)
Gary Morse
Fred Travers (Seldom Scene)
Cindy Cashdollar
John Fogerty
Andy Hall
(The Infamous Stringdusters)
Leroy Mack
Dean Parks
Happy Traum
Eric Church
Abbie Gardner (Red Molly)
Jimmy Heffernan
Tommy Maher
(Fireside Collective)
Robert Randolph
Sally Van Meter
Chad Darou
Vince Gill
Caroline Jones
Marcy Marxer
Timothy B. Schmit (The Eagles)
Sara Wells (The Wells Band)