Complex sentence: An important musical educator and writer, Persichetti, a native of Philadelphia, was known for his integration of various new ideas in musical composition into his own work and teaching, and for training many noted composers in composition at the Juilliard School.
Split into simpler sentences: An important musical educator and writer, Persichetti was a native of Philadelphia. He was known for his integration of various new ideas in musical composition into his own work and teaching, and for training many noted composers in composition at the Juilliard School.