Between 1954 and 1973 she collaborated with the composer Benjamin Britten on several of his operas, and between 1977 and 1981 with composer Alun Hoddinott on most of his operatic works. She was a friend of the poet John Betjeman, who wrote several poems addressing her, such as "Myfanwy""myfanwy" at www.johnbetjeman.com and "Myfanwy at Oxford".
