Richard Wagner was a German composer, theorist, and conductor born in 1813 who had a revolutionary influence on Western music. Some of his major operatic works include The Flying Dutchman, Tannhauser, Lohengrin, Tristan and Isolde, and the four operas that make up The Ring of the Nibelung cycle. Wagner sought to integrate music, poetry, dance, and visual components into a new form of "total work of art." Though controversial in his time, he changed the course of opera and inspired many other art forms with his innovative music dramas and theories.