Throughout the summer y0u can enjoy free concerts in the courtyard of the Central Library in Copley Square. The music ranges from jazz, folk, world, classical, and more. The one hour concerts will be moved inside in the case of bad weather.
Concerts are every Wednesday evening from 6:00 to 7:00 pm and every Friday afternoon from 12:30 to 1:30 pm from now through August 31, 2016.
You can find the complete schedule of concerts here.
Check out other FREE & Cheap things to do in the Boston area.