All changes to tower
| Date | Change | Source |
|---|---|---|
| 27 Jun 2017 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 25 Sep 2014 | Ring key nearer G (despite tenor nominal: F#+48c) | Nick Bowden via pNBR |
| 1-6: nominal added; ring key amended | Nick Bowden via 00010914 |