Organizers are preparing for the 15th Crystal Classic choir competition in the southwestern Ohio city of Fairfield. The March 1 event is expected to draw up to 5,000 people to the northern Cincinnati suburb. They have 39 choirs from five states lined up. When the competition first began, it drew about 20 groups, mainly from Ohio and Indiana. Larger groups now perform in the Fairfield Arena, with smaller ones in the high school's performing arts center.