Members of the Chamber Singers perform in the Sheldon Memorial Art Gallery on Dec. 2. The choral group, led by Therees Hibbard, assistant professor of music, will perform at the Sheldon's First Friday Winter Escape event, 5 to 7 p.m. Dec. 7. The event is free and open to the public. For more information, go online to www.sheldonartgallery.org. Photo by Tom White/Sheldon Memorial Art Gallery.