This lively tune is not just a Kerry polka, Tony says, but *the* Kerry polka.
Tony refers to a nice recording of this by a Connemara accordion player, Sonaí Choilm Learaí (on CIC Records).
This is a tune that fits very well with the guitar.
It's in the key of G.
Chords for the accompaniment are G, C, A7, and D. For variation, you can play an Em in the sixth bar, and can substitute A7 for Am in the fourth bar.