Which opera has more acts, Einstein on the Beach or Owen Wingrave?
Owen Wingrave Owen Wingrave, Op. 85, is an opera (originally written for a televised performance) in two acts with music by Benjamin Britten. The libretto is by Myfanwy Piper, after a short story by Henry James.
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.