Complex sentence: In 1960, he went to Italy, a trip which was formative in his future musical development: in addition to studying with Luigi Dallapiccola, he commenced a career as a performer of new piano music, often with an improvisatory element.
Split into simpler sentences: In 1960, he went to Italy, a trip which was formative in his future musical development. In addition to studying with Luigi Dallapiccola, he began a career as a performer of new piano music, often with an improvisatory element.