All changes to tower
| Date | Change | Source |
|---|---|---|
| 22 Oct 2009 | Tenor note not G#: nominal A-15c | Dave Kelly tonal analysis via pNBR |
| 1-3: nominal added | David Kelly via e-mail | |
| 1-3: frame id added; frame info added | John Baldwin via database | |
| 5 Jan 2004 | URL amended | Dickon Love via e-mail |