There is a lovely song written by Englishman Pete Betts titled They don't Write Them Like That anymore. If this is it I can give the rest of the words. The chorus goes:

Oh how we would sing
what fun those nights would bring
Singing for hours on end
Once we had found a key
oh what harmony those bluesy voices would lend
Oh Heart of my heart just for a start
walking my baby back home
when it comes to an end we'll sing it again
they don't write them like that anymore.