Five Things You Need to Know Today: June 15

1. Friday Noon Concert: Esprit de Cors, a horn ensemble, with conductor David Archibald, will perform this week's hour-long, free noon concert at . The program will feature the premier of Labyrinth by Lexington composer Pamela Marshall, and a new arrangement by David Archibald of excerpts from Wagner's The Flying Dutchman.

2. : If you haven't yet, seriously, you should take this opportunity to visit the birthplaces of American liberty and 19th Century literature by riding along the historic Battle Road while your costumed guide recounts the exciting events of April 19,1775 and the literary legacy that defined American identity and culture. Rates are very reasonable. For more information, click .

3. Today in Public Meetings: According to the town website, the only public meeting posted for today is the Board of Assessors at 8:30 a.m. at the . 

4. Third Middlesex Candidates Forum Tomorrow: The 3rd Middlesex Area Democrats Senate Candidates Forum is tomorrow, Saturday, June 16, from 1 to 3 p.m. at the Clark Government Center on School Street in Waltham. The forum is sponsored by the the Waltham News Tribune and the Third Middlesex Area Democrats, and parking is limited so carpooling is suggested. For further information contact Janet Beyer, at jbeyer1126@aol.com

5. Sunny and Clear: Should be mostly sunny and clear today, with a high of 72, according to the National Weather Service, which predicts an also clear evening with an overnight low of 52.