The Governor-General of Canada gives a summer concert series at his official residence in Ottawa, Rideau Hall. An unusual offering this year was a performance by the Dominion Carillonneur, using a mobile carillon. Dr. Andrea McCrady is the Dominion Carillonneur, and normally she plays the bells that are in the Peace Tower of the Centre Block on Parliament Hill. She and her apprentice played a varied program for an intrigued audience on the grounds of Rideau Hall. We got a chance to see and hear a carillon up close. The how-to of this unusual form of music making was fascinating.