 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.