A CAppellA SingAlong Sometimes all you need is vocals. That's the mindset Mark Chatfield had when he founded the A Cappella Sing-Along group in 2010. "When you have instruments you really can't hear the voices, and to me it's a special sound when it's just people singing," the Village of Glenbrook resident said. Chatfield was first exposed to a cappella singing in church, which was also the first time he realized how much he enjoyed singing. 16 SEPTEMBER 2017