All changes to tower
| Date | Change | Source |
|---|---|---|
| 9 Nov 2010 | 8: canon info amended | Chris Pickford via 00008941 |
| 6 May 2009 | Tenor note not G#; nominal: G+35c | Andrew Higson via pNBR |
| 1-8: nominal & canon info added; 1-8 exc 4: diam rev'd | Andrew Higson via 00007406 |