Complex sentence: Clara Petrozzi-Stubin has studied Musicology at the University of Helsinki; she also studied Composition and Orchestration with Harri Vuori between 1999 and 2001, premiering her compositions in Finland and Peru.
Split into simpler sentences: Clara Petrozzi-Stubin has studied Musicology at the University of Helsinki. There she also studied Composition and Orchestration with Harri Vuori between 1999 and 2001, premiering her compositions in Finland and Peru.