Complex sentence: He graduated from Princeton's Westminster Choir School and continued his studies at the Curtis Institute of Music in Philadelphia, and later with Marie-Madeleine Chevalier-Duruflé in Paris.
Split into simpler sentences: He graduated from Princeton's Westminster Choir College and continued his studies at the Curtis Institute of Music in Philadelphia. Later, he studied with Marie-Madeleine Chevalier-Duruflé in Paris.