Vic said
> Think of the carol, Whilst Shepherds Watched...There used to be a time in folk clubs when every Christmas folk club meeting had it sung to the tune of Ilkley Moor Bar 'tat

I believe that tune was originally one of the umpteen tunes written for While Shepherds, and the Ilkley Moor words were written as a spoof, which however became far better known than the original.