The Yellow Room is the "brilliantly yellow" living room of Tamulevich's house on Ann Arbor's Old West Side, where gang members meet monthly for musical brainstorming and mutual critique. There are eight members of the gang, most or all of whom are on hand for any given show: Annie Capps, Kitty Donohoe, Jan Krist, Michael Hough, David Tamulevich, David Barrett, Jim Bizer, and Matt Watroba. Each an accomplished songwriter and performer in their own right, they create a unique atmosphere of respect and support, friendship and generosity finding new and unexpected ways to explore beyond their previous personal boundaries.

Neil Woodward's musical performances bring to life the Michigan Experience for Great Lakes audiences and visitors from around the world. Neil's first time to play at The Ark was 1975. He is recipient of Michigan State University's Michigan Traditional Arts 2018 Heritage Award for leadership and artistry in folk music. In 2003 the State of Michigan Legislature officially designated Neil "Michigan's Troubadour" in recognition of his life-long commitment to preservation of Great Lakes folk music and culture.

Mustard’s Retreat has always sung the songs they enjoyed and cared about, regardless of the trends of the music industry and pop culture. They are committed to simply being themselves, not chasing fame or brass rings, while delighting in and connecting with their audiences as if they were family. The honesty of what they present onstage and the extensive body of outstanding original songs and recordings all contribute to a fiercely loyal audience that continues to grow. “Music to cure what ails you” was how one reviewer in the 1970s described them, and that is as true now as it was then.