"Byam Shaw's most celebrated opera productions were in collaboration with the conductor Reginald Goodall, first "The Mastersingers", the company's last major production at Sadler's Wells Theatre, and, after its move to the London Coliseum in 1968, the four operas of Wagner's "Ring" cycle, in which Byam Shaw's co-director was his former assistant John Blatchley.Byam Shaw's last collaboration with Goodall was "Tristan and Isolde" in 1981.