MMario, the title is "The Ferrybank Piper" composed by Robbie O'Connell. I have a recording of the author singing the song - if you like I can include a copy with that other item I was going to send you.

The words in the link you posted aren't that far off but since the author is still alive I guess we should try to be more accurate. Here are the lyrics as I know them. I think they're pretty close to the original.

The Ferrybank Piper
Composed by Robbie O'Connell

By the river in the evening a piper used to play
And down along the railway tracks he'd play songs sad and gay
His pipes were always well in tune and people used to say
The sounds would echo on the evening tide and carry miles away

Chorus:
So here's to the Ferrybank Piper
May his sad tunes never die
May his gay tunes raise your weary hearts
Til in your grave you lie

Sometimes he'd pipe a haunting tune, sometimes he'd hum a song
But always a crowd would gather round and follow him along
And the sound of their voices in the evening sky would rise and linger long
But no more is there the echo on the evening tide, now that he is gone

And now when I walk down that lane and hear the river flow
I think of that old piper and the songs he used to know
A happy tune runs through my head, I sing it soft and low
And I hear the echo on the evening tide like the days of long ago

Regards,
Radriano