John,

I see there are a LOT of participatory singing venues on the program this year -- starting at about noon on Saturday on the lawn (?) in front of the Initman Theater (Greenwood Family Sing). The schedule I got from the website didn't make it really clear where they are and whether they're all in the same location, but it looks like there are participatory sings --some generic and some theme based --all weekend long.

Genie