He was a minor Symbolist poet. His published works include Pierrot lunaire: Rondels bergamasques (1884), a poem cycle based on the commedia dell'arte figure of Pierrot, and La Guirlande des Dieux (1910). His chief claim to fame, though, was that the composer Arnold Schönberg set a German language version of selections from his Pierrot Lunaire to innovative atonal music.
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