Input (grade 13): Elsewhere, he became the Australian Opera's Music Director in 1970, conducting the first performance in the Sydney Opera House in 1973 (the Australian premiere of War and Peace by Sergei Prokofiev).
Output (grade 7): From 1970 he was Music Director of Australian Opera. He conducted the first performance in the new Sydney Opera House in 1973 conducting Prokofievâ s opera War and Peace.