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".
Giovanni Zenatello Giovanni Zenatello (22 February 1876 – 11 February 1949) was an Italian opera singer. Born in Verona, he enjoyed an international career as a dramatic tenor of the first rank. Otello became his most famous operatic role but he sang a wide repertoire. In 1904, he created the part of Pinkerton in "Madama Butterfly".