All changes to tower
| Date | Change | Source |
|---|---|---|
| 27 Dec 2013 | 1-6: frame id amended; frame info added | Philip Denton via 00010597 |
| 2 Dec 2009 | Thu (18:30) PN info added | Ray Fanthorpe, Guild Report Editor via e-mail |
| 16 Dec 2005 | Tenor note not Ab; nominal added (=A-42c) | George Dawson via e-mail |