Sorry to hear about your loss, Dave's Wife.
As for songs, one of mine died with me singind Alan Bell's song "So Here's To You (And our time together...).

Here's a short poem by Kipling, which I have on my wall...

I have done mostly what most men do,
And put it out of my mind;
But I can't forget, if I wanted to,
Four-feet trotting behind.

Day after day, the whole day through -
Wherever my road inclined -
Fou-feet said "I'm coming with you!"
And trotted along behind

Now I must go by some other round -
Which I may never find -
Somewhere that does not carry the sound
Of Four-feet trotting behind.