Les Danaïdes

Les Danaïdes is an opera by Antonio Salieri, in 5 acts: more specifically, it is a tragédie lyrique. The opera was set to a libretto by François-Louis Gand Le Bland Du Roullet and Louis-Théodore de Tschudi, who in turn adapted the work of Ranieri de' Calzabigi (without permission). Calzabigi originally wrote the libretto of Les Danaïdes for Christoph Willibald Gluck, but the aged composer, who had just experienced a stroke, was unable to meet the Opéra's schedule and so asked Salieri to take it over.

The plot of the opera is based on Greek tragedy and revolves around the deeds of the mythological characters Danaus and Hypermnestra.

Emperor Joseph II assured that Salieri wrote the music "almost under the dictée of Gluck," in a letter (dated 31 March 1783) to Count Mercy-Argenteau, the Austrian ambassador in Paris. Then Mercy told the directors of the Opéra that Gluck had composed the first two acts, and Salieri supplied the third act's music (Mercy did not realize the opera was in five acts). Even when the libretto was published, Gluck and Salieri shared billing as the composers.

Though flattered, Gluck was not foolish enough to risk too close an association with young Salieri's work and diplomatically informed the press: "The music of Danaïdes is completely by Salieri, my only part in it having been to make suggestions which he willingly accepted." Gluck, who had been devastated by the failure of his last Paris opera, Echo et Narcisse, was concerned that Les Danaïdes would suffer a similar fate. He wrote to Roullet the same day that the opera premiered, crediting Salieri with the entire work, and the press noted this confession. Salieri made a positive twist on Gluck’s statement, claiming that he was "led by [Gluck’s] wisdom and enlightened by his genius".

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Wikipedia