What's da name of the song that's played in ep 8 of saison 4, while Paddy and karen are in the car, with the Maguire son in the boot? Paddy says of the song that it helps him relax. It sounds like some traditional Irish song. Could anyone tell me who's the composer?

It's from Riverdance but I'm not sure what the piece is called, it could well be called just 'Riverdance'. Hope this helps.

OH THANKS SO MUCH. Ill immediately look it up TA!