All changes to tower
| Date | Change | Source |
|---|---|---|
| 24 Oct 2016 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 31 May 2015 | Indication of toilet facility added | TimJ (#209) via e-mail |
| 3 Mar 2007 | Tenor note not Bb; nominal added (B+35c) | George Dawson via pNBR |