This local 40-member vocal ensemble performs Broadway favorites, American standards, and folk songs from around the world. Audience members are invited to sing along. Light refreshments at 5:30 p.m. 6–7:30 p.m., Kellogg Eye Center Auditorium, 1000 Wall St. $20 (members, $12). Membership, $35 a year. (734) 998–9351.