Complex sentence: Among the most important figures in British classical music in this period was Sir William Sterndale Bennett, a RAM pupil of Potter's, he was a pianist, composer and conductor who for eleven years took control of the Philharmonic Society baton.
Split into simpler sentences: Among the most important figures in British classical music in this period was Sir William Sterndale Bennett. A RAM pupil of Potter's, he was a pianist, composer and conductor who for eleven years took control of the Philharmonic Society baton.