Complex sentence: The scenario and staging were designed by Helpmann, the choreography by Ronald Hynd, the orchestration by John Lanchbery (who was then the musical director of The Australian Ballet) and his colleague Alan Abbott.
Split into simpler sentences: The scenario and staging were designed by Helpmann, with the choreography by Ronald Hynd. The orchestration was by John Lanchbery (who was then the musical director of The Australian Ballet) and his colleague Alan Abbott.