Complex sentence: He accepted the position of pianist and assistant Musical Director and toured with Norman for nearly 3 years, in Australia, New Zealand and Rhodesia as well as dates in the British Isles including a season in the Isle of Man where Norman later settled in 1980.
Split into simpler sentences: He accepted the position of pianist and assistant Musical Director and toured with Norman for nearly 3 years, in Australia, New Zealand and Rhodesia. Their tours comprised dates in the British Isles as well, including a season in the Isle of Man, where Norman later settled in 1980.