FREE Summer Concerts Posted on May 18, 2015 Looking for something fun and free? This summer, join your HPO for special outdoor performances in and around the city. HPO at the Dundas Cactus Festival Feat. Thought Beneath Film August 15 at 4pm HPO Brass at Gage Park August 16 at 7pm HPO at Supercrawl Feat. Illitry September 12 at 7pm Leave a Reply Cancel ReplyYou must be logged in to post a comment.