Do the operas Don Carlos and Pomone have the same number of acts?
Don Carlos Don Carlos is a five-act grand opera composed by Giuseppe Verdi to a French-language libretto by Joseph Méry and Camille du Locle, based on the dramatic play "Don Carlos, Infant von Spanien" ("Don Carlos, Infante of Spain") by Friedrich Schiller. The opera is usually performed in an Italian translation. In addition, it has been noted by David Kimball that the Fontainebleau scene and auto da fé "were the most substantial of several incidents borrowed from a contemporary play on Philip II by Eugène Cormon".
Antigone (Honegger) Antigone is an opera ("tragédie musicale") in three acts by Arthur Honegger to a French libretto by Jean Cocteau based on the tragedy "Antigone" by Sophocles. Honegger composed the opera between 1924 and 1927. It premiered on 28 December 1927 at the Théâtre Royal de la Monnaie with sets designed by Pablo Picasso and costumes by Coco Chanel.