All changes to tower
| Date | Change | Source |
|---|---|---|
| 13 Jul 2017 | 1-8: frameid added; frame info added | David Sloman via e-mail |
| 12 May 2009 | Tenor and ring nearer key of A than Ab; nominal: A-48c | Andrew Higson via pNBR |
| 1-8: nominal,canon info added; Sct: canon info added | Andrew Higson via 00007435 |