Thomas Adès’ The Exterminating Angel, which premiered at the Salzburg Festival in 2016, is based on Luis Buñuel’s classic 1962 Surrealist film. In it a group of bourgeois guests dine at the house of Edmundo, Marqués de Nobile, and his wife Lucia, only to discover that at the end of the evening that they are unable to leave the house. An undefined force is holding them in one room, and as the days wear on the people stuck there grow increasingly bestial as...