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
The Corridor (opera) an orchestral ensemble of flute, clarinet, harp, violin, viola, and cello. The Corridor (opera) The Corridor is a chamber opera composed by Harrison Birtwistle to an English language libretto by David Harsent. It premiered at the Aldeburgh Festival on 12 June 2009. The title refers to the corridor through which Orpheus and Eurydice passed as he was leading her from the underworld. Various aspects of the myth of Orpheus have been a recurring theme in Birtwistle's work, first explored in his three-act opera "The Mask of Orpheus" (1986) and later incorporated into his two-act opera "The Second Mrs Kong" (1994).