Buy your tickets now for the Green Space Blues Jam on May 18, a benefit fundraiser for the Waltham Land Trust. This year at the Charles River Museum of Industry at 7:30 pm, we welcome world reknowned blues legend Duke Robillard. For the price of a ticket, you get dinner, dessert, beverages, access to the Museum's exhibits, and the chance to bid on silent auction items which so far include restaurant gift cards, vacations stays, handmade crafts, and a signed Red Sox baseball. Come meet your neighbors and show you care about Waltham's open spaces, trails, and natural resources.