 The most consistently successful composer of the era was Jules Massenet, who produced twenty-five operas in his characteristically suave and elegant style, including several for the Théâtre de la Monnaie in Brussels and the Opéra de Monte-Carlo.His tragic romances "Manon" (1884) and "Werther" (1892) have weathered changes in musical fashion and are still widely performed today.The conservative music critics who had rejected Berlioz detected a new threat in the form of Richard Wagner, the German composer whose revolutionary music dramas were causing controversy throughout Europe.