Ray McDonald, the Director of Music and Organist at Memorial Presbyterian Church, will invite attendees to join him in the choir loft for an examination of the inner workings of their amazing Aeolian-Skinner organ.  This organ, the largest in St. Augustine, has been refurbished recently and along with added pipes, digital stops have been added.  People will be invited to join Mr. McDonald in the organ chamber and can view the pipes – large and small.  He will explain the…