`` According to John Yohalem, ''Her lower register was a cello register, Stradivarius -hued. `` Her voice was full and rounded even in her highest notes, which was brilliant, but sometimes ''slightly acid. `` In 1971, Time writes an article comparing Sutherland and Beverly Sills, ''Originally bright and youthful-sounding, her voice darkened as she transformed herself into a coloratura.
Sutherland
Beverly Sills