7 - 8 pm -- Test your knowledge of Somerville's past (or just hang out and enjoy the fun) at Somerville History Trivia Night, co-sponsored with the Somerville Museum. Win history-related prizes! 

8 - 10 pm -- The Union Square Playlist presents Audrey Ryan at Aeronaut Brewing Co.'s Duck Village Stage Series. Singer-songwriter and multi-instrumentalist Audrey Ryan has practiced in the former American Tube Works building at 440 Somerville Avenue since 2004. She also produces a series of concerts by local and touring musicians in her practice space. Ryan’s most recent EP is Let’s Go to the Vamp and her music has been heard on a variety of television shows including Glee and Teen Mom. The Pittsburgh City Paper says, “Because Audrey Ryan’s songwriting is so good, even if she is pulling and tugging on an accordion or picking on a banjo and stomping her tambourine adorned foot, the music is just as moving live as it is on her phenomenal album.” For more information visit  www.audreyryan.com