All changes to tower
| Date | Change | Source |
|---|---|---|
| 19 Jul 2010 | 1-6: frame id added; frame info added | James Clarke via e-mail |
| 13 Apr 2009 | Tenor note not A; nominal inferred from T&Bs of Devon | (JGMS) via JCB |
| 10 Nov 2004 | PN info added | Wendy Campbell via www |
| 10 Oct 2004 | Slight dedication change to match Crockford | Graham Nabb check via e-mail |