Heather Mary Harper CBE (8 May 1930 ? 22 April 2019) was a Northern Irish opera soprano . She first became known in 1954 for Medea at the Oxford University Opera Club. From 1956 to 1975, she was a member of the English Opera Group . She later became noted for her performances of Elsa in Strauss 's Arabella , Ellen Orford in Britten 's Peter Grimes and as the Governess in Britten's The Turn of the Screw . She retired in 1994.

Harper was born in Belfast . She studied at the Trinity College of Music in London . She died on 22 April 2019, at the age of 88. ^[1]

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