Complex sentence: Ormandy conducted many of the orchestra's best-known recordings and took the orchestra on its historic 1973 tour of the People's Republic of China, where it was the first Western orchestra to visit that country in many decades.
Split into simpler sentences: Ormandy conducted many of the orchestra's best-known recordings. He took the orchestra on its historic 1973 tour of the People's Republic of China, where they were the first Western orchestra to visit that country in many decades.