Don Juan, Op. 20, is a tone poem in E major for large orchestra written by the German composer Richard Strauss in 1888. The work is based on Don Juans Ende, a play derived from an unfinished 1844 retelling of the tale by poet Nikolaus Lenau after the Don Juan legend which originated in Renaissance-era Spain. Strauss reprinted three excerpts from the play in his score. In Lenau's rendering, Don Juan's promiscuity springs from his determination to find the ideal woman. Despairing of ever finding her, he ultimately surrenders to melancholy and wills his own death. It is singled out by Carl Dahlhaus as a "musical symbol of fin-de-siècle modernism", particularly for the "breakaway mood" of its opening bars.