Helga Dernesch

Helga Dernesch (born 3 February 1939) is an Austrian soprano and mezzo-soprano. Her career has taken her through four successive phases: from mezzo-soprano to lyric soprano to dramatic soprano, and after about 1980 back to mezzo again. "Her voice had great richness and power, and her strikingly handsome stage appearance and intense acting made her a compelling performer." Provided by Wikipedia