A lovely polka composed by the mighty Tim Browne of Kanturk. There's a link to Tim's Youtube channel in the video.
And below is another version I recorded to help sell the fiddle in the video. The second part of this changes to another key (see Modulation) and creates a sort of mood change. I just replace the F natural in the 2nd part with F#. Only play the tune like this if you're playing solo or if you've pre-arranged it with the people you're playing with.