Parts of that song I don't understand.
It's a song about Horse races
Here the words:

Chorus:
Heard the sound of the Thunder, I heard the sound on the earth
Heard the sound of the Thunder, for who's on the Turf.
Verses:
I saw you at the ...., in the County Kildare
where I've ............. with your long black hair.

Then I saw you on ......................................
I knew a beautiful Cup it was waiting for you

And I had a big dream when you walked round that ring
The ......................... sure I knew you would win

A bonny desire I felt it inside
When I looked at you sure you filled me with pride

And the race course was crowded when the ...... came in
Down there are ........ to see who would win.

No, I didn't worry, I didn't care
I put all my money upon the black mare.

The starter he shouted, stay back from the line
The black mare from Ireland should I knew she was fine.

And know how we shouted when she crossed the line
She was the first in the Gold Cup and the winner was mine