Simplify the following text for a Grade 9 native English-speaking person.
Original: Artur Schnabel ( April 17 , 1882 -- August 15 , 1951 ) was an Austrian classical pianist , composer and teacher .
Simplified: Artur Schnabel ( April 17 , 1882 â `` August 15 , 1951 ) was an Austrian classical pianist , who also composed and taught .