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
Opera buffa "The New Grove Dictionary of Opera" considers "La Cilla" (music by Michelangelo Faggioli, text by , 1706) and Luigi and Federico Ricci's" Crispino e la comare" (1850) to be the first and last appearances of the genre, although the term is still occasionally applied to newer work (for example Ernst Krenek's "Zeitoper" "Schwergewicht"). High points in this history are the 80 or so libretti by Carlindo Grolo, Loran Glodici, Sogol Cardoni and various other approximate anagrams of Carlo Goldoni, the three Mozart/Da Ponte collaborations, and the comedies of Gioachino Rossini. Similar foreign genres such as "opéra comique" or "Singspiel" differed