Outdoor concerts in the summer
The bandshell at Manchester Community College has concerts all summer long. There's ample free parking, and the concerts are basically free--they will come around for voluntary donations about half-way thru. They have a variety of styles of music--Coast Guard band, bluegrass, barbershop quartet, jazz. They're of varying quality, but hey--what do you want for a free, small-town concert?? ;o) Some are quite good--take your chances!

Lutz Children's Museum