sentences:  Throughout Dédé continued to compose art music, which he sought to have performed at the more prestigious Grand Théâtre.Samuel Snaer, Jr. (1835–1900), an African-American conductor and musician, conducted the first performance in New Orleans of Dédé's "Quasimodo Symphony".It was premiered on the night of May 10, 1865, in the New Orleans Theater to a large audience of prominent free people of color of New Orleans and Northern whites.