Complex sentence: Born in Trieste, Cappuccilli originally intended to become an architect, he auditioned at a local opera house in 1949, where Luciano Donnaggio (a retired singer beginning a second career as a teacher) heard him and urged him to study.
Split into simpler sentences: Born in Trieste, Cappuccilli originally intended to become an architect. He auditioned at a local opera house in 1949, where Luciano Donnaggio (a retired singer beginning a second career as a teacher) heard him and urged him to study.