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Richard Strauss: 15 facts about the great composer
9. Elektra (1909)
Strauss's opera Elektra took his use of musical dissonance even further. Based on a character from Greek mythology, Elektra is one of the most demanding roles in the dramatic soprano repertoire. It was also the first opera in which Strauss collaborated with the poet Hugo von Hofmannsthal. They subsequently worked together on numerous major works.