Über das Dirigieren

22 May 1813 – 13 February 1883

Wilhelm Richard Wagner was a German composer, conductor, theatre director and essayist, primarily known for his operas (or "music dramas", as they were later called). Unlike most other opera composers, Wagner wrote both the music and libretto for every one of his works. ([Source][1].) [1]: http://en.wikipedia.org/wiki/Richard_Wagner