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.
Momo and the Time Thieves Momo and the Time Thieves (Danish: "Momo og tidstyvene ") is a Danish-language opera in two acts by Svitlana Azarova. The libretto, based on the children's book "Momo" by Michael Ende, was written by .