Simplify the following text for a Grade 11 native English-speaking person.
Original: Every summer the Chicago Symphony Orchestra plays in Ravinia in Highland Park , Illinois The orchestra helped in the first Ravinia Festival in August 1936 and has been to the Festival every summer since .
Simplified: The Orchestra helped to inaugurate the first season of the Ravinia Festival in August 1936 and has been in residence at the Festival every summer since .