sentences:  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".