FQ mentioned Celtic Folk (one of my favourite musical genres) in his initial question, here's one that always cheers me up. sorry for the lack of 'youtube' links an' all but living in the middle of nowhere restricts me to 'dial-up' until I decide to break down & do 'Hughes net"..or something

Let grasses grow and waters flow
In a free and easy way,
But give me enough of the fine old stuff
That's made near Galway Bay,
And policemen all from Donegal,
Sligo and Leitrim too,
We'll give the slip and we'll take a sip
Of the rare old mountain dew
Chorus:
Hi diddley idle um do dee doodle idle um do dee do rye diddle I day,
Di diddley idle um do de do ri idle um do ree do ri diddle ee I ray.
There's a neat little still at the foot of the hill,
Where the smoke curls up to the sky,
By a whiff of the smell you can plainly tell
That there's poitin, boys, close by.
It fills the air with odour rare,
And betwixt both me and you,
As home we stroll, you can take a bowl,
Or a bucket of the mountain dew
Chorus.
Now learned men as use the pen,
Have wrote yer praises high
The sweet poitin from Ireland green,
Distilled from wheat and rye.
Throw away yer pills, it'll cure all ills,
Of Pagan, Christian or Jew,
So take off your coat and grease your throat
With a little of the mountain dew.
[" Poitin" pron. P'cheen/Puh-cheen]