The University of Tulsa Opera Theatre presents two one-act comedies: An updated version of J.S. Bach’s Coffee Cantata, and The Old Maid and the Thief by Gian-Carlo Menotti. What is a parent to do, when saddled with a teenaged daughter whose only passion is java? And what is a grouchy old woman to do, when she takes in a strange male boarder, and gets more (and less) than she bargained for? The performances are in Meinig Recital Hall at 7:30 pm; admission is free.