If you like choral music, and traditional Irish music specifically, you should definitely listen to anything the UCD Choral Scholars produce under Desmond Earley.
I discovered their works just a few weeks ago and have been listening to them ever since almost every day. Just to give a few examples, the mezzo-soprano solo (Marie Woulfe) in this piece goes right through me (in a positive manner, that is to say):
And seldom, if ever, you get to hear such a vibrant, clear tenor as this one (Glenn Murphy) with non-professional singers:
Belonging to the latest but, it is to be hoped, not the last productions, this piece’s lyrics are written in one of the most beautiful languages in the world, Gaeilge (Irish Gaelic):