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
Liebe und Eifersucht "everywhere marked by understanding and craftsmanship – and nowhere distinguished by genius." Liebe und Eifersucht Liebe und Eifersucht ("Love and Jealousy") is a "Singspiel", an opera with spoken dialogue, in three acts by the German composer and author E. T. A. Hoffmann, composed in 1807 on his own libretto based on the translation by August Wilhelm Schlegel of a play by Calderón. The opera was first published by Schott in 1999, and premiered at the 2008 Ludwigsburger Schlossfestspiele. The author Ernst Theodor Amadeus Hoffmann was interested in music, wanted originally to become a musician, and added Amadeus to his names