This is a rebuild of an existing organ. Identified by Andrew Henderson, based on personal knowledge of the organ: Installation of 3-manual Allen Protégé digital organ, connected to the existing Moller organ (and replacing the original 2-manual console). All original ranks appear to have been retained, although with a substantially different stoplist. Pipe ranks can be accessed or substituted by digital stops by controls on the coupler rail: "Add pipes" or "Substitute pipes".