All changes to tower
| Date | Change | Source |
|---|---|---|
| 21 Dec 2021 | 1-2: nominal added | Nigel Taylor's personal tuning records via David Sloman |
| 15 Jul 2012 | (W+P) URL added | Rosemary Oakeshott via e-mail |
| 9 Jul 2009 | 3,4,5,6,7: nominal added; frame info added | Andrew Higson via 00007732 |
| 22 Dec 2006 | Tenor note not A; nominal (Ab+15c) added | GAD NBR spreadsheet via pNBR |
| 16 Jun 2003 | Augmented from 6 | Mark Esbester via TJ#46 via e-mail |