All changes to tower
| Date | Change | Source |
|---|---|---|
| 14 Jan 2024 | 1,2: weight added | See CB Notts, Dawson via Tim Jackson |
| 13 Oct 2017 | 1: frameid amended | Tim Jackson via e-mail |
| 22 Sep 2017 | Tenor note added (from nom'l); those of 2,3 >> non-diatonic | John Greenhough (GAD data) via pNBR |
| 2,3: nominal added | John Greenhough via 00012452 | |
| 11 Jul 2017 | 1-3: frameid added; frame info added | David Sloman via e-mail |