Complex sentence: In 1945 he orchestrated Lerner and Loewe's musical "The Day Before Spring" for Broadway, at the recommendation of Maurice Abravanel, who considered him a great orchestrator.
Split into simpler sentences: In 1945 he orchestrated Lerner and Loewe's musical "The Day Before Spring" for Broadway. He was accepte for the role on the recommendation of Maurice Abravanel, who considered him a great orchestrator.