she made her Royal Opera, London debut as Lady Penelope Rich in the world premiere of Britten's Gloriana, a production organised by the EOG. She sang in another EOG production for her debut at La Fenice on 14 September 1954; this time The Governess in the premiere of Britten's The Turn of the Screw. Vyvyan sang in many more world premieres during her career, including Tytania in Britten's A Midsummer Night's Dream (Aldeburgh Festival, 1960), the Countess de Serindan in Malcolm Williamson's The Violins of Saint-Jacques (1966, Sadler's Wells), various roles in Williamson's Lucky-Peter's Journey (1969, Sadler's Wells) and Mrs. Julian in Britten's Owen Wingrave (1971, BBC television). She also premiered Arthur Bliss's The Beatitudes in the 1962 festival for the opening of Coventry Cathedral, and gave the first UK performance of Britten's Cantata Academica in 1961 as well as the UK premiere of Poulenc's Les Mammelles de Tiresias (Aldeburgh 1958). Britten's spelling change to use Tytania in A Midsummer Night's Dream rather than Shakespeare's Titania was a tribute to Vyvyan. In 1953 Vyvyan portrayed Elettra in Idomeneo at the Glyndebourne Festival. Further opera performances and concerts took her to the stages of Milan, Rome, Munich, Vienna, Paris and Amsterdam. In 1955 she undertook a major tour of the Soviet Union as part of a delegation of British artists organised by Sir Arthur Bliss. In 1969 she performed at the Lucerne Festival. She remained a regular presence at the Royal Opera House as well during the 1950s and 1960s. On the concert stage, Vyvyan performed throughout Europe and the United States under such conductors as Carlo Maria Giulini, Leonard Bernstein, Rafael Kubelik, Pierre Monteux, Ernest Ansermet, Victor de Sabata, Josef Krips and Britten, excelling in performances of British music. She also appeared often on the radio and on television, including some of the earliest complete operas broadcast on British TV. She excelled in Handel and played a major role in the revival of his operas/oratorios – with pioneering performances of Athalia, Samson, Amadigi, Rinaldo, Saul, and the first known staging in modern times of Radamisto (Sadlers Wells, 1960). She was also known for her interpretations of the soprano solos in Beethoven's Symphony No. 9, Britten's War Requiem, and Bach's St John Passion and St Matthew Passion. Having never retired, Vyvyan died from complications of a longstanding bronchial illness on 5 April 1974 at the age of 49. Recordings Vyvyan's association