From a modern-day operatic tribute to “The Goose That Laid the Golden Egg” to a woman interacting with a toy chicken, St. Lou Fringe offers entertainment that can’t be found on any other local stage. But can the Fringe still fly without its original founder? Em Piro is leaving the organization after its fifth festival, which opens Friday. In our latest Cut & Paste podcast , we talk with Piro about her collaborative approach, how the festival has grown in step with St. Louis’ arts community