It’s never too early to introduce baby to classical music. The Baltimore Symphony Orchestra’s monthly Music Box Series is for children age 6 months to 3 years. Each 30-minute concert is interactive and engaging, and focused on a certain theme — this month’s is “Arctic Animals.” Tickets, $10; book online at bsomusic.org or call the box office at 410-783-8000. Sat. Nov. 9, 10 a.m. and 11:30 a.m.