you can find both instrumental and sung recordings on youtube

The Tannas lyrics are given in the first message.
https://www.youtube.com/watch?v=yBribuvcTz0

As puirt-a-beul is traditionally sung as a substitute for instruments, I looked for an unaccompanied rendition:
http://www.tobarandualchais.co.uk/en/fullrecord/2735
sung by Annie Arnott