Aug. 6: Bruce Marshall Group and James Montgomery will wrap up the summer series. Marshall played last summer and the musicianship of the entire group was front and center. This is going to be another awesome evening of blues, R&B, rock and Southern boogie. Montgomery, well known at Londonderry’s Tupelo Music Hall and throughout New England as a true showman, will join the band. He has toured with many major artists, including Aerosmith, Bonnie Raitt, Bruce Springsteen, the Allman Brothers, Steve Miller and others. The bad weather location is the Londonderry High School cafeteria.