Thanks, keberoxu, will when I find it. I was actually looking at A Chomharsain Éistigi thinking it was Blas Meala. I did find a version of Cuachín Ghleann Néifin in Abair Amhráin, but it was indeed the song I know as Gort an Charnáin, rather than the one starting 'Tá féar fad is fásach…'.