www.celticlyricscorner.net/matheson/chi.htm Karen Mathieson does not sing Chi mi Bhuam to the D. McLellan tune "Chi mi Muile" and I don't think these lyrics, as quoted from in my previous message, would fit the tune. But if you like Runrig, you would probably like the other recording of Chi mi Bhuam from Imrich ... I can't make out the words, think it is yet another song still , the beginning of the the chorus sounds to me like "chi mi bhuam ar far a' chuain" That song is at https://www.youtube.com/watch?v=gYNWKrjY-I0

And if you want generally to learn to sing some songs in Gaelic see https://learngaelic.scot/littlebylittle/songs/index.jsp

None of this gives you the lyrics for Chi mi Muile, though sheet music for the D McLellan tune is available on line and I expect the lyrics are in some printed song books. Have you been asking elsewhere about all these lyrics you seek, as the Mudcat community isn't proving so helpful so far for Scottish Gaelic lyrics?