Which opera has more acts, The Bassarids or Don Quichotte?
The Bassarids The Bassarids (in German: "Die Bassariden ") is an opera in one act and an intermezzo, with music by Hans Werner Henze to an English libretto by W. H. Auden and Chester Kallman, after Euripides's "The Bacchae".
I due Foscari I due Foscari ("The Two Foscari") is an opera in three acts by Giuseppe Verdi to an Italian libretto by Francesco Maria Piave, based on a historical play, "The Two Foscari" by Lord Byron.