Simplify the following text for a Grade 11 native English-speaking person.
Original: Dart studied keyboard instruments at the Royal College of Music in London from 1938 to 1939 , and also studied mathematics at University College , Exeter , graduating in 1942 .
Simplified: He studied keyboard instruments at the Royal College of Music in London from 1938 to 1939 , and also studied mathematics at University College , Exeter ( B. Sc .