Complex sentence: Prieto began playing the cello at age four, studying under the instruction of Hungarian cellist Imre Hartman and later continued his instruction at the National Conservatory of Music with Pierre Fournier in Geneva and Leonard Rose in New York.
Split into simpler sentences: Prieto began playing the cello at age four, studying under the instruction of Hungarian cellist Imre Hartman. He continued his instruction at the National Conservatory of Music with Pierre Fournier in Geneva and Leonard Rose in New York.