During
World War II, Goodall conducted the Wessex Philharmonic, a freelance orchestra which included some ex-members of the
Bournemouth Municipal Orchestra. In 1944, Goodall joined the
Sadler's Wells company, forerunner of the
English National Opera. An early triumph was his conducting of the premiere of
Benjamin Britten's
Peter Grimes in 1945. He conducted this again later at the
Royal Opera House, Covent Garden, where he had first conducted in 1947. He was an assistant conductor to the music director of the Royal Opera House,
Karl Rankl, in the late 1940s. Goodall also conducted at
Glyndebourne, including another Britten premiere, this time of
The Rape of Lucretia, which was also his first recording, with
EMI. Goodall spent much of his career conducting orchestras at the Royal Opera House and Sadler's Wells Opera. At Covent Garden, he was overshadowed by
Georg Solti. When Solti was made music director of the Royal Opera in 1961, altercations soon followed, leading Goodall to cease conducting duties and withdraw to an upper-floor room, nicknamed "
Valhalla", where he remained available to singers for coaching on request. For Goodall, conducting success finally came with an appointment at Sadler's Wells, where from 1967 he worked in close collaboration with the head of the music staff, Leonard Hancock. In the late 1960s and early 1970s, Goodall conducted several celebrated Wagner productions at Sadler's Wells Opera that reversed the decline in his prestige and established him as one of the leading Wagner conductors of his time. He conducted
Die Meistersinger von Nürnberg in 1968, and the full
Ring Cycle from 1970 to 1973, both productions sung in English. His last public performance was in 1987 at the
Royal Albert Hall, London, where he led the English National Opera Company in a performance of act 3 of Wagner's
Parsifal. The cast included
Gwynne Howell (Gurnemanz),
Warren Ellsworth (Parsifal),
Neil Howlett (Amfortas) and Shelagh Squires (Kundry). ==Fascism and Holocaust denials==