PORTLAND — The Portland Symphony Orchestra will present its second annual Halloween-themed Discovery concert on Sunday, Oct. 28, at Merrill Auditorium. 

Dancers from Portland Ballet will be on hand to shake a spooky groove.

Guests are encouraged to dress in costume and arrive early for preshow festivities starting at 1 p.m. Highlights include a costume contest, games, a chance to learn the zombie dance moves of Michael Jackson’s “Thriller” and a hands-on instrument petting zoo.

The family-friendly event at 2:30 p.m. is geared to children of all ages, especially 5 to12. 

For tickets, $10, call 842-0800, log on to PortTIX.com or visit the box office at 20 Myrtle St. Box office hours are noon to 6 p.m. Monday through Saturday. Ticket price includes a $2 handling fee and $2 Merrill restoration fee.

PSO Discovery concerts are an hour long and engage the audience in a fun and educational journey with the full orchestra. The next Discovery concert will be Carnival of the Animals on Sunday, May 19.