My DH and I will be there Thursday and Friday, we're so excited! We went in 1997, and being the Disney lover that I am, I kept the map and information sheet!
At that time, the performances were at Castle Forecourt Stage, Tomorrowland Stage, Cosmic Ray's Starlight Cafe, Galaxy Palace Theater in Tomorrowland and Adventureland Stage in Adventureland. Each group performed at least twice, some of them three times throughout the night (ex. 9:15, 10:30 & 11:45 p.m.)