Max Kalbeck was a close friend and partisan of Johannes Brahms. Kalbeck's principal achievement was his eight-volume biography of that composer, published from 1904 to 1914, which has never been translated into English. Kalbeck also edited several volumes of Brahms's correspondence and in 1918, the letters of the poets Gottfried Keller and Paul Heyse, as well as publishing two collections of his own music reviews. Kalbeck wrote new libretti for Mozart's "Bastien und Bastienne" and "La finta giardiniera"; and he revised those of "Don Giovanni" and "The Marriage of Figaro" for Gustav Mahler's productions at the Vienna Hofoper. In addition, he supplied
Morgen und Abend Morgen und Abend Morgen und Abend (German: "Morning and Evening") is an opera by Georg Friedrich Haas to a libretto by the Norwegian writer Jon Fosse. It is based on Fosse's 2000 novel "Morgon og kveld". The opera was jointly commissioned by the Royal Opera House, London, and the Deutsche Oper Berlin. It was premiered on the main stage of the Royal Opera House on 13 November 2015. The director of the production is Graham Vick. The composer has said "'Don't expect melodies, don't expect harmonies, just expect soundscapes". The vocal lines include microtones, including quarter-tones and sixth-tones. The opera,