As part of a community wide celebration of the 50th Walnut Valley Festival, Southwestern College will, for the first time, produce Ken Gale’s “Winfield, A Bluegrass Musical,” Friday and Saturday, Sept. 9 and 10, at 7:30 p.m., and Sunday, Sept. 11, at 2:30 p.m., in the Richardson Performing Arts Center. Set at the campgrounds during festival, the musical tells the story of a first-time attendee who finds love, family, and himself among the strummers and pickers who inhabit the festival campgrounds. Armed with a guitar, his best friend, and a new song, Dusty encounters the ethereal Celeste and falls hard. Along the way he meets Peg and the pickers of Pirate Camp, Cookie and the Mutineer camp strummers, and the mystical musical minions who inhabit the woods by the Walnut River.