Simplify the following text for a Grade 7 native English-speaking person.
Original: Pears was co-librettist for A Midsummer Night 's Dream , and created one of his few comic roles in it .
Simplified: Pears helped to write the words for A Midsummer Night 's Dream , based on the Shakespeare play . In most of Brittenâ s operas Pears sang serious roles , but in A Midsummer Nightâ s Dream he had a comic role : the part of Flute the Bellowsmender .