All changes to tower
| Date | Change | Source |
|---|---|---|
| 20 Jun 2020 | fr1: truss,layout added | Tim Jackson via e-mail |
| 5 Jul 2015 | 1-6: frame id added; frame info added | Christopher Woodcock via e-mail |
| 4 May 2007 | Tenor note not G; nominal added (F#+14c) | Andrew Higson via pNBR |
| 13 Feb 2006 | PN added | Chris Woodcock via e-mail |