Let's accept the Swarb mistake wasn't his.

How come he wrote:

"Some are well-known carols applied to different tunes -it's is said there are over twenty versions of 'O Come All ye Faithful'. We hear a few of them this lunchtime in Dungworth hammered out with four-part harmonies,counterpoint harmonies and a lustful adoration".

Melody Maker December 30th 1978.

Now to me there is a world of difference between getting singers' names wrong - which he also did - and getting a whole series of songs totally wrong - songs which he describes listening to in detail. For those not familiar with this he really meant to say - "While Shepherds Watched Their Folks by Night".