Máiréad Ní Dhomhnaill sings the same or similar version of Róisín Dubh as Brian O Domhnaill. I like the tune they have.
https://www.youtube.com/watch?v=pVLFYneSd2M

the better known tune for Róisín Dubh is sung here by the renowned Caitlín Maude and next up after she sings is an uileann piper playing the air