Complex sentence: Bryden ("Jack") Thomson was born in Ayr, Scotland, Thomson led several British orchestras, including the BBC Northern Symphony Orchestra, the BBC Welsh Symphony Orchestra and the Ulster Orchestra from 1977 to 1985.
Split into simpler sentences: Bryden ("Jack") Thomson was born in Ayr. He led several British orchestras, including the BBC Northern Symphony Orchestra, the BBC Welsh Symphony Orchestra and the Ulster Orchestra from 1977 to 1985.