The Chappaqua Orchestra’s annual New Castle Community Sing-a-long features holiday tunes, local performers, and guest artist soprano Amy Goldstein. The performance will be followed by the Holiday Tree Lighting with the New Castle Historical Society at the Horace Greeley House. Santa will be on hand and yummy treats provided by the New Castle Teen Alliance. This concert is FREE! No tickets or reservations required. Sat, 12/1: 3:30pm. Tree lighting: 4:30pm. (Robert E. Bell Middle School, 5 Senter St., Chappaqua) www.chappaquaorchestra.org