The international mezzo Ameral Gunson died on Friday night of cancer, her husband has reported.
Starting out in the BBC Singers while studying with Otakar Krauss, she became a soloist with the leading UK orchestras and quite a few abroad.
On the opera circuit her roles included Marcellina in Nozze di Figaro, Despina in Così fan tutte, Sesto in La clemenza di Tito, Marguerite in La damnation de Faust and Waltraute in Götterdammerung.
She appeared at the Royal Opera House Covent Garden and at the opera houses in Helsinki and Turin.
In later life, she was a much sought-after teacher.