Our World included the opera singer best known for what technique?
Maria Callas Maria Callas, Commendatore OMRI (Greek: Μαρία Κάλλας ; December 2, 1923 – September 16, 1977), was a Greek-American soprano, and one of the most renowned and influential opera singers of the 20th century. Many critics praised her "bel canto" technique, wide-ranging voice and dramatic interpretations. Her repertoire ranged from classical "opera seria" to the "bel canto" operas of Donizetti, Bellini and Rossini and further, to the works of Verdi and Puccini; and, in her early career, to the music dramas of Wagner. Her musical and dramatic talents led to her being hailed as "La Divina".
Sherrill Milnes Sherrill Milnes (born January 10, 1935) is an American operatic baritone most famous for his Verdi roles. From 1965 until 1997 he was associated with the Metropolitan Opera. His voice is a high dramatic baritone, combining good legato with an incisive rhythmic style. By 1965 he had made his debut at the Metropolitan Opera. His international debuts followed soon thereafter, and Milnes became one of the world's prominent Verdi baritones of the 1970s and 1980s.