American folk, country and soft rock artist Mary Chapin Carpenter is scheduled to perform a free concert at 7:30 p.m. July 17 at Hartwood Acres in Hampton Township. Summer performances are held outdoors in the Middle Road amphitheater. Performances are subject to change. Call 412-767-9200 or visit the website, www.alleghenycounty.us./summer/index.aspx. Taking place at Hartwood from 1 to 5 p.m. Sunday is Dog Days, a festival which pets may attend, rounded out with music by Good Brother Earl starting at 4 p.m. Admission is free.