Orchestrating women's health

When these 100-plus healthcare professionals aren't busy taking care of people, they're busy making music with the Longwood Symphony Orchestra, whose concerts support medical charities. Tonight the members of the orchestra, more than half of which are women (including Elisha Wachman, below), commemorate International Women's Day with a program featuring Tchaikovsky's "Piano Concerto No. 3"; proceeds benefit local programs that protect women's health and rights around the world. There's also a free symposium, "Crisis, Creativity and Courage: Protecting Women's Rights, Promoting Women's Health" at Harvard Medical School from 2 to 5 p.m. (77 Avenue Louis Pasteur); registration is required (longwood symphony@gmail.com). The concert is at 8 p.m. $28, $15 students, seniors. Jordan Hall, 30 Gainsborough St., Boston. 617-667-1527. longwoodsymphony.tix.com