helga dernesch
Helga Dernesch (b. February 3, 1939 in Vienna) 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 (see also Voice type). "Her voice had great richness and power, and her strikingly handsome stage appearance and intense acting made her a compelling performer."