Jazz Age Lawn Party, featuring Michael Arenella’s Dreamland Jazz Orchestra, Benefit for the New Castle Historical Society, Sun, 9/16: 4pm: Michael Arenella’s Dreamland Orchestra is widely recognized for their performances at Jazz Age Lawn Parties on NYC’s Governor’s Island. Here they perform for the New Castle Historical Society’s Greeley House and it’s educational programs. Tickets are just $30-35. Pack a picnic or pre-order a picnic basket from The Chappaqua Station Cafe. www.newcastlehs.org