 The organ is currently in a poor state of repair, although as a result of its neglect, the instrument is probably the last and largest example of a Harrison tubular-pneumatic action (most other large organs were converted to electro-pneumatic action after World War II).The organ is also unusual in that it is unaltered, as most comparable organs have been modified, added-to or revoiced.The British Institute of Organ Studies awarded it a Grade 1 Historic Organ Certificate in 2003, and it is classified as part of the hall's Grade II status.