http://www.scmf.org/index_flash.html <- their website.
I have spring/summer fever, so here is something I think about when pining for all days to be like today... Summer chamber music concerts + picnic + blanket on a lawn. We have been going to the concerts the festival puts on at Lakeside School for many years.
The festival staff can be, er, snotty about kids attending the concert inside until the kids look old enough (to them) to behave. So, I recommend staying outside where the crowd is cordial and the field is available if your kid needs to run dinner off. (Why pay for that treatment?) And, besides, the picnic aspect one of the best parts!