A work which began in Westminster Cathedral and ended in Hatfield, Hertfordshire, hence the name. It started off as a tune to the new translation of Gloria in excelsis Deo, but I soon realised the rest of the tune wouldn't work on the lyrics, so I left it. Several months later, I thought of continuing the tune, and I had a vague idea of the final result in my head.
This is by no means the final result, but I cannot do anymore — I lost the Fruity Loops session data (I'm on demo, mind, so I can't save if I don't want to lose my Fruity Soundfont Player), and so I couldn't do the modifications I so desired... T_T
EDIT: This song (in loopable form) won Audiodraft's Orchestral Video Game Theme Challenge. Thanks guys! ^_^