In her prime her technique was exemplary. She could dispatch coloratura roulades and embellishments, capped by radiant high Ds and E-flats, with seemingly effortless agility. She sang with scrupulous musicianship, rhythmic incisiveness and a vivid sense of text.
NPR said her voice was "Capable of spinning a seemingly endless legato line, or bursting with crystalline perfection into waves of dazzling fioriture and thrilling high notes."
After retiring from singing in 1980, she became the general manager of the New York City Opera. In 1994, she became the chairwoman of Lincoln Center and then, in 2002, of the Metropolitan Opera, stepping down in 2005. Sills lent her celebrity to further her charity work for the prevention and treatment of birth defects.
