The Royal Opera House has announced a few cast amendments and additions for its upcoming 2019-20 season. Lars Woldt has withdrawn from “Don Giovanni” due to poor health. The Commendatore will instead by sung by British bass Brindley Sherratt on Sept. 13, 16, 19, & 28 and Oct. 3, and Greek bass Petros Magoulas on Sept. 22 & 25 and {…}