I was there May 15th playing with our band in Epcot. Not a school band, since we're all 55 plus and we played on a stage since those marching days are long gone for most of us.
I guess people are used to seeing school bands on this stage, though. My wife was in the crowd and said there were a lot of people surpised to see a bunch of "old people" playing. We have a 100 piece concert band with a lot of retired music teachers and professionals. Hey, it keeps us old folks off the streets and out of trouble... well, off the streets...