Watertown: This year’s Family Day at the Armenian Library and Museum of America will include arts and crafts activities, story-telling, Armenian dance lessons, and a costume dress-up event Sunday, 2-4 p.m., at 65 Main St. Free. 617-926-2562, www.almainc.org.
Waltham: The Oriana Consort, a 30-member chorale that sings primarily a cappella, performs works from the 16th to the 21st centuries Sunday, 3 p.m., as part of a music and lecture series at Bentley University’s Wilder Pavilion, 175 Forest St. Free. www.3rdsundays.org.
Watertown: Danish vibist and composer Winnie Dahlgren, known for her energetic, playful songs influenced by Latin and world music styles, performs Monday, 7:30 p.m., at Arsenal Center for the Arts, 321 Arsenal St. $18, $15 students and members. 617-923-0100, www.arsenalarts.org.