Which opera has more acts, Boulevard Solitude or L'amico Fritz?
Boulevard Solitude Boulevard Solitude is a "Lyrisches Drama " (lyric drama) or opera in one act by Hans Werner Henze to a German libretto by Grete Weil after the play by Walter Jockisch, in its turn a modern retelling of François Prévost's "Manon Lescaut". The piece is a reworking of the Manon Lescaut story, already adapted operatically by Auber, Massenet and Puccini, and here relocated to Paris after the Second World War where, as is noted in Grove, the focus of the story moves away from Manon and towards Armand des Grieux. It became Henze’s first fully-fledged opera. The work stands out for its strong jazz influences, from a composer who had hitherto been associated with twelve tone technique.
Leben des Orest Leben des Orest ("The Life of Orestes") is a grand opera in five acts (eight scenes) with words and music both by Ernst Krenek. It is his Op. 60 and the first of his own libretti with an antique setting. The score is inscribed with the dates of composition: 8 August 1928 – 13 May 1929, and includes indications of recommended cuts made for the first production. It premiered at the Neues Theater in Leipzig on 19 January 1930, and opened at the Kroll Opera House in Berlin in early March of the same year (Leichtentritt 1930, 366).