Complex sentence: From 1964 to 1972, Hendl served as director of the Eastman School of Music at Rochester, New York, and was also musical adviser to the Rochester Philharmonic Orchestra and its part-time conductor.
Split into simpler sentences: From 1964 to 1972, Hendl served as director of the Eastman School of Music at Rochester, New York. He was also musical adviser to the Rochester Philharmonic Orchestra and its part-time conductor.