Blimey, it's like Christmas Day! Thanks for the response - I'll be some while digesting everything.

Sandy, I've heard of people who could learn a song at one hearing; Elvis was supposed to have the knack they say. I have a feeling that the Folk Process gets into the act pretty frequently. For example:

Little Mathy Grove took the very first lick;
It made him wonderfully sore.

... the second line is usually something like "and wounded him full sore" - all you have to do is swap a couple of syllables around. I don't know why this kind of thing fascinating; I suppose it appeals to my razor-sharp analytical brain!

Off at a tangent here - do you have anoraks in the States?
Steve