Hi Gurney, there's a version of Kishmul's Galley here:
http://www.cyberstudia.com/ogmios/audio/kishmul.html
You'll see that it was collected in 1909 and the singing version is of a rather classical soprano nature. Nigel Denver recorded this years ago and gives it a powerful, mystical treatment. It seems to date from the times of viking warriers fighting jsut off Barra and was written in Scottish Gaelic but ususally sung in English. Slainte, Jim Mclean