Le prophète
D'Alvarez made her debut in Rouen in 1907, singing in "Samson and Delilah". After further studies in Paris she made her first American appearances with the Manhattan Opera Company in 1909 as Fidès in Giacomo Meyerbeer's "Le prophète". Following her season in New York City, she went to London to help Oscar Hammerstein inaugurate his London Opera in 1911; that year, she scored great successes in French roles.