Which opera has more acts, Genoveva or Moses und Aron?
Moses und Aron Moses und Aron (English: "Moses and Aaron") is a three-act opera by Arnold Schoenberg with the third act unfinished. The German libretto is by the composer after the Book of Exodus. Hungarian composer Zoltán Kocsis completed the last act, with Schoenberg's heirs' permission, in 2010, but as of 2014 "Moses und Aron" was almost always performed as Schoenberg left it in 1932, with only two of the planned three acts completed.
Margot (opera) Margot is an opera in three acts (later reduced to two) composed by Joaquín Turina to a Spanish-language libretto by Gregorio Martínez Sierra. It premiered at the Teatro de la Zarzuela in Madrid on 10 October 1914. Set in Paris and Seville, the opera's story involves a love triangle between José Manuel, a young Spaniard; Margot, a Parisian courtesan with whom he has an affair; and Amparo, José Manuel's sweetheart in Andalucía.