Guitar and mandolin duo Kathryn Casternovia and Jef Ramsey will play acoustic bluegrass and old-time country music at 6 p.m. Sunday, March 16, at Mystic Treats Pizza, 2345 Ashland St., Ashland. Cover is free.

Guitar and mandolin duo Kathryn Casternovia and Jef Ramsey will play acoustic bluegrass and old-time country music at 6 p.m. Sunday, March 16, at Mystic Treats Pizza, 2345 Ashland St., Ashland. Cover is free.