Simplify the following text for a Grade 12 native English-speaking person.
Original: From 25 March to 27 March 2005 , a music and arts festival was held on the refurbished island , utilising abandoned buildings and warehouses as exhibition rooms , concert halls and shopping\/food venues .
Simplified: From March 25 to March 27 , 2005 , a music and arts festival was held on the island , using empty buildings and warehouses as exhibition rooms , concert halls and shopping\/food venues .