Twyford and Sullivan in Orestes: A Tragic Romp. When talking Greek tragedy, the first description to come to mind usually isn’t “zany.” But Folger Theater’s production of Orestes: A Tragic Romp manages to blend unexpected humor and melodrama into a bizarrely innovative package. Anne Washburn’s adaptation of the Euripides tale doesn’t worry too much about acting as a literal translation. She’s too busy binding the story’s trajectories, from the fallout from Orestes’ murder of…