Damn it, I can't remember much of it, but I think this is the one you mean:-

If he saw the Crown & Anchor where we met before the game,
Where Cwm Rhondda and Delilah first sounded both the same,
The Public Bar was crowded, the songs came on a tray,
........................... I wonder what he'd say

I used to know it all, old age is a curse!

FC