Kenneth Tynan theatre critic until mid-1963 when he joined the National Theatre. In 1963, Laurence Olivier became the British National Theatre Company's first artistic director. Tynan had been highly dismissive of Olivier's achievements as artistic director of the Chichester Festival Theatre, which had opened in 1962, but he recommended himself for the role of literary manager. Olivier was initially outraged by Tynan's presumption but Olivier's wife, Joan Plowright, convinced him that Tynan would be an asset at the National Theatre Company, then based at the Old Vic theatre. When he became the National Theatre's literary manager, Tynan ceased to be the theatre
The Old Vic Theatre director Sir Peter Hall arranged for the progressive folk-rock band Gryphon to première "Midnight Mushrumps", the fantasia inspired by Hall's own 1974 Old Vic production of "The Tempest" starring John Gielgud for which Gryphon had supplied the music. For two years prior to the departure of the National Theatre company, Toby Robertson, director of the Prospect Theatre Company, sustained a campaign that the Old Vic should make Prospect its resident company. For the Old Vic, Robertson's overtures proved increasingly hard to resist in the face of poor box office returns achieved by productions staged by other visiting companies; against