Air, copywrighted or public domain?
I’m wanting to record a CD soon, with a mixture of some of my own tunes and plenty of trad tunes. I’m also wanting to record at least one or two airs, and the one that really comes to mind is Mna na hEireann (or Women of Ireland in English). Before I try to do this though, I want to make sure if I try to sell it I’m not in any kind of copyright infringement situation. Does anybody know if this tune is copyrighted or if it’s public domain? Does anybody know if the the lament called Doinna is copyrighted or not too?