Sandy, Ewan says in his preamble to this song in his book "One Singer, One Song", and I quote, "There are, you'd not lift an eyebrow to learn, differing versions of this song about". However, the version in the link above is so far from his original lyric that it bears correcting. Here goes:

ALL THE TUNES IN THE WORLD

Lay down the borrowed guitar
Lay down the fiddle and bow
You'd like one more drink at the bar
But the manager says you must go

CHORUS:
All the tunes in the world
Are dancing around in your head
But the clock on the gantry says playtime is done
You'll just have to sing them instead

Lay down the jig and the reel
Lay down the planxty and slide
Everyone knows how you feel
But there's no time to take one more ride
(Chorus)
The barmaid has put on her coat
The barman has emptied the slops
The manager's pals are afraid
That the music might bring in the cops
(Chorus)
Everyone here feels the same
Yes you deserve one more tune
But you know the rules of the game
It's time to go howl at the moon
(Chorus)

It's a good song, American audiences might not understand what "gantry" means, I usually change it to "wall" when I do it here .....

Murray