Simplify the following text for a Grade 7 native English-speaking person.
Original: Mozart 's Clarinet Concerto and Clarinet Quintet are both in A major , and generally Mozart was more likely to use clarinets in A major than in any other key besides E-flat major .
Simplified: Mozart 's Clarinet Concerto and Clarinet Quintet are both in A major . Mozart used clarinets in A major often .