Second annual Christmas sing-a-long at the regular Wednesday night open mic at the Red Dot Restaurant and Bar. Rob Johanson hosts every week, from 8 p.m. to 11 p.m., with the 9-10 p.m. hour live on WGXC 90.7-FM and wgxc.org. This week, carols will be sung. As always, anyone can turn out to sing or play an instrument, or, perhaps, find an unexpected collaboration.