Rockin’ rhythm boogie and blues, country and ragtime will fill the air this Friday as Bennett Harris and Dave Keyes perform at the free Saugerties Summer Concert Series. Harris has a unique, all-American sound inspired by the legends of blues, while Keyes is a 30-year veteran of the blues and American Roots music scenes. The concert series continues on Fri. 8/2 with singer-songwriter Emily Beck and Americana jammers Pine Cats, and concludes at The Dutch Barn at the Kiersted House with folk artists Michele Gedney and old-timey music revivalists Hammerhead Horns.