(Courtesy Photo) Attendees of Community Music Center of Boston’s (CMCB) major fund-raiser event, called Play Your Part, Sept. 25 at Egleston Square’s Boylston Congregational Church included (from left): CMCB Executive Director David Lapin; Boston Public Schools Superintendent Carol Johnson; and students Nethania Marc and Mardochee Sylvestre. The South End-based CMCB holds many music programs, including a children’s chorus in JP.