Remember learning this phonetically from a Gaelic-speaking teacher (Alan Steele) at my secondary school Rutherglen Academy in the late 1950s.
We were members of the Rutherglen Academy Ballads Club (formed by my English teacher and later MP Norman Buchan) and sang all sorts of material from bothy ballads to the Muckle Sangs via skiffle, street songs, music hall stuff and anything in between. We did enjoy this example of mouth music and may even have married it to a Lowland variety ' Jock, since ever I seen your face'.

At the same time a group of us also learned 'Mhic eorla nam bratach bhana' (?) -- and even recorded both songs for a BBC broadcast.