FREE CONCERTS ON THE ESPLANADE
Fill your picnic basket, grab a blanket, and head to Boston’s Hatch Shell on the Esplanade for free Wednesday evening concerts (7-9 p.m., July 17-Aug. 28). The series features the Boston Landmarks Orchestra performing diverse works from Brahms to Cole Porter to music inspired by Latin American song and dance. The final night will be a musical tribute celebrating the 50th anniversary of Martin Luther King Jr.’s “I Have a Dream” speech. As a special feature, the orchestra has commissioned an American Sign Language interpretation, the first time ever that the entire speech is available in ASL. In addition, “A Lincoln Portrait” by Aaron Copland commemorates the 150th anniversary of the Emancipation Proclamation. 617-987-2000, www.la ndma rksorchestra.org Full story for BostonGlobe.com subscribers.