Montagu Slater new. Slater's original libretto, which he published himself (to the annoyance of Britten and Peter Pears, who had made a number of amendments to it before the opera was staged), is cast in three acts. It omits the repetitions necessary in the actual opera. Anthony Burgess, writing in The Listener (magazine) in 1964, stated: “The excellence of Peter Grimes has a great deal to do with Montagu Slater's libretto, the only libretto I know that can be read in its own right as a dramatic poem.” He also wrote the libretti for `Yerma’, composed by Denis Aplvor. Slater was involved,
English National Opera Sadler's Wells with a revival of the work with which it had re-opened the theatre in 1945, "Peter Grimes". Its last performance at the Rosebery Avenue theatre was on 15 June 1968. The company, retaining the title "Sadler's Wells Opera", opened at the Coliseum on 21 August 1968, with a new production of Mozart's "Don Giovanni", directed by Sir John Gielgud. Though this production was not well received, the company rapidly established itself with a succession of highly praised productions of other works. Arlen died in January 1972, and was succeeded as managing director by Lord Harewood. The success of