A Well-Strung ChristmasNEW HAVEN, Conn. — Well-Strung, the popular five-member a capella ensemble, returns to The Bushnell on Friday, Dec. 16, in “A Well-Strung Christmas,” the fifth annual holiday show produced by Bushnell.The concert, set for 7:30 p.m., includes a musical variety of seasonal classics. The program includes carols by Beatles, Carly Simon, The Pretenders, Leona Lewis and more, along with standards like “Little Drummer Boy,” “It’s the Most Wonderful Time of the Year,” “Rudolph, the Red-Nosed Reindeer,” “The Christmas Song,” “We Wish