Fred (and other readers),
I'm going to have to think about that a bit to come up with a comment about Bob Dylan in Scots Gaelic.Many Irish and Scots artists have covered Dylan -- but they usually sing in English. Really fine versions of Dylan songs by Mary Black, Altan, Danu, Dervish, many others.
While I am thinking about this, I would not want you to be without a video. The people in your post are talking of Scots Gaelic, and she's singing in Irish, of which Scots Gaelic is an offshoot, but anyway, here is a link to a quicktime video of Cathie Ryan singing PeataBeagDoMhathar.