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
Janko Kastelic In 2002 he won the position as an assistant in the Vienna State Opera, where he also conducted performances of "Das Traumfresserchen", "Aladdin" and "Bastien und Bastienne". He has prepared works for the Klangbogen Festival Vienna and the Salzburger Festspiele and was the conductor of the TU Orchester Wien, where he led novel orchestra concerts focusing on French and Classical repertoire. He was responsible for the demanding choruses in "Moses und Aron" by Arnold Schoenberg at the Vienna State Opera in March 2007. In 2008 he conducted performances of "Die Fledermaus" by Johann Strauss at the Musik Theater Schönbrunn in