Simplify the following text for a Grade 11 native English-speaking person.
Original: A cornerstone of the Chichester music scene is Chichester RAJF ( From `` Real Ale and Jazz Festival '' ) , a four day festival of music and real ale held each July in tents beside the 13th century Guildhall in Priory Park .
Simplified: Chichester RAJF ( From `` Real Ale and Jazz Festival '' ) gives a four day festival of music and real ale held each July in tents beside the 13th century Guildhall in Priory Park .