I know nothing of the song

Pádraigín Ní Uallacháin is mostly known for singing in Irish and researching Irish language songs from south east Ulster. Her husband Len Graham is also a well-known traditional singer. I know Pádraigín has arranged and composed music for several songs, I don't know think she's written many lyrics

pronunciation is approximately Pa-dra-geen
Ní rhymes with we
ool-a-caun (the ch is as in 'loch', not as in 'charm', so I don't know how to represent it in English. 'Chanukah' has a similar sound I think)(the ool is more like a quick oo-al)