...so how does one interpret the words when doing 'mouth-music'?
Wikipedia says >>..In puirt a beul, the rhythm and sound of the song often have more importance than the depth or even sense of the lyrics. Puirt à beul in this way resembles other song forms like scat(jazz) singing.<<<
so, scoobie-doobie-doo to you!!!
I love some of the 'puirt a beul' melodies 'mouthed' by Karen Matheson and her ilk .
Just do the song with feeling for the rhythm and sound if not sure of the meaning of the words.. many song lyrics are meaningless anyhow.