Tattoo: Friday, May 2, 6:30-8:30 pm on the Lexington Battle Green (1625 Massachusetts Ave.). Free outdoor evening performance of fife and drum music at the scene of the first skirmish in the Revolutionary War. Hosted by the William Diamond Junior Fife & Drum Corps of Lexington and featuring four other corps.

Lexington Muster: Saturday, May 3, 12:00-4:00 pm at Hastings Park in Lexington (corner of Massachusetts Ave. and Worthen Rd.). Free outdoor afternoon of music, history and entertainment by two dozen fife and drum corps representing different eras including the Revolution, hosted by the William Diamond Junior Fife & Drum Corps of Lexington. Begins with a 250th anniversary ceremony on the Lexington Battle Green (1624 Massachusetts Ave.) honoring the 7 Lexington patriots who fell on the Green at the Battle of Lexington in 1775. Free parking; walking distance from Lexington’s historic Battle Green, Visitors Center and historic houses.