Complex sentence: Her mother Jean Blake Robinson Coulthard was a prominent and influential music teacher in Vancouver, and introduced the young Jean Coulthard to the work of French composers such as Claude Debussy and Maurice Ravel, who were life-long influences.
Split into simpler sentences: Her mother Jean Blake Robinson Coulthard was a prominent and influential music teacher in Vancouver. She introduced the young Jean Coulthard to the work of French composers such as Claude Debussy and Maurice Ravel, who were life-long influences.