The Lexington Chamber of Commerce will host its annual Summer Concert Series outdoors on the Lexington Visitors Center lawn (1875 Mass. Ave.) on Friday nights July 13th through Aug. 31st (6:30pm to dusk). Each week features a different band, and concerts are weather-dependent. To view the entire lineup of performers for the 8-week series visit www.lexingtonchamber.org. The concerts are FREE to the general public. Lawn chairs & picnic blankets are encouraged.