From 1950 to 1955, Sackville-West was a member of the board of the Royal Opera House, Covent Garden, where he continued to work for the cause of modern British music, including that of Michael Tippett, whose opera The Midsummer Marriage was premiered in 1955.
Von 1950 bis 1955 war Sackville-West Vorstandsmitglied des Royal Opera House, wo er weiter im Zeichen moderner britischer Musik arbeitete, besonders der von Michael Tippett, dessen Oper The Midsummer Marriage 1955 Premiere hatte.