By MATTHEW ASPREY GEAR (Marching Song: A Play by Orson Welles with Roger Hill;  edited by Todd Tarbox. 178 pp. Rowman & Littlefield, 2019.) Like a few other American giants — Mark Twain and Duke Ellington come to mind — Orson Welles left behind vast archives of unreleased work in varying states of completion. He’s … Continue reading Welles on the march: Rediscovering ‘Marching Song’ play