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"Notturno" (translated as Nocturne), Opus 44, Number 1 (TrV 197), is an orchestral song written for low voice, which Richard Strauss composed in 1899 based on a poem Erscheinung (translated as Apparition) by the German poet Richard Dehmel (1863-1920). In performance it takes about 13 minutes. Norman Del Mar described it as “ranking amongst Strauss’s finest as well as more ambitious works”.