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 "Her voice had great richness and power, and her strikingly handsome stage appearance and intense acting made her a compelling performer.
Dernesch studied at the Vienna Hochschule für Musik before making her debut in 1961 singing Marina in Boris Godunov in Bern.

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