Graciela Rivera year she made her operatic debut as Rosina in "The Barber of Seville" by Gioachino Rossini at the New Orleans Opera. In December 1951, she became the first Puerto Rican to sing a lead role at the New York Metropolitan Opera as Lucia in the production of Lucia di Lammermoor. She earned accolades for her performance from critics around the world. In 1953, Rivera was proclaimed "Citizen of the Year" by the City of New York. In 1954 Rivera was featured as a guest singer in Name That Tune, and later that year, at an instance of Your Show of
Gioachino Rossini matrimonio" ("The Marriage Contract"), was produced at Venice when he was a youth of 18 years. Two years before this he had already received the prize at the Conservatorio of Bologna for his cantata "Il pianto d'Armonia sulla morte d'Orfeo". Between 1810 and 1813 at Bologna, Rome, Venice and Milan, Rossini produced operas of varying success, most notably "La pietra del paragone" and "Il signor Bruschino", with its brilliant and unique overture. In 1813, "Tancredi" and "L'italiana in Algeri" were even bigger successes, and catapulted the 20-year-old composer to international fame. The libretto for "Tancredi" was an arrangement by Gaetano