Fin de siècle
By the opening years of the 20th century (Fin de siècle) the avant garde were beginning to challenge traditional values, often shocking Viennese society, such as Arthur Schnitzler's play "Reigen", the paintings of Klimt, and the music of Schoenberg, Anton Webern and Alban Berg and the Second Viennese School ("Zweite Wiener Schule").