This year the Martinsville-Henry County Historical Society brings back its signature free music concert series, Sounds on the Square, at the MHC Heritage Museum, 1 E. Main St. The concerts will be held from 7-10 p.m. on the first Friday of each month from May through September. Food and drink will be sold. During the event, admission to the museum will be half price ($5 adults, $2.50 children/seniors).