In reply to The Lemming:
Halsway Carol is an interesting composition in that it has attracted people posting versions on all sorts of devices and it's quite catchy. Its composer sounds interesting : he seems to be working as a cabinet maker or similar now but has recorded and performed with Plant and Page ( hurdy gurdy, naturally, the instrument the carol was designed for I suspect).
And being a secular carol, it might pass the UKC litmus test.