The Great Indoor Folk Festival returns to Building 50 in the Village at Grand Traverse Commons this Sunday. On February 24, from noon to 5:30, the ground floor halls will be filled with more than 100 musicians playing folk, bluegrass and more. This free, family focused event features local musicians, from amateurs to veterans. Left Food Charley, located behind the main building, will offer music as well, and Cuppa Joe invites aspiring talent to their open mic.