If you go to the festival be sure to visit the "Village" of Claremont. From Larkin Park travel east 1 3/4 miles on Harrison Ave. The Folk Music Center is a great, really a museum of folk instruments.Walk around the "Village" it's only about 5 square blocks, maybe drop by Walter's for a bite to eat.
I love the place but I'm biased, having grown-up there.
wm