Can't help with the tune although I'm sure Matt recorded it. He was a regular guest at the Marsden folk club in South Shields in the sixties. He was unpretentious, direct and funny- not a stage Scot at all& able to adapt/invent tunes to his excellent songs in a unique way.

I'm still singing a verse to the song which is the header of this discussion- not sure if it was ever recorded by him but I clearly recall him singing...

I've a big post office book, it's true
And in it I've aa fiver more than you
I've saved through eatin' potted heid***
It'll pay for the hearse when I drap deid
chorus..
** as a mere Geordie, I'll leave it to those ''''Geordies with their brains kicked oot'''''' north of the border to explain this Scottish delicacy