Quick presentation of Pat, taken from his YouTube channel:
"Pat is an All-Ireland button accordion champion. He plays Irish traditional as well as some international accordion music, these days mostly at sessions in counties Galway and Offaly (Ireland).
Pat started playing the button accordion in his teens and won numerous prizes for his music from a young age, including the All Ireland Junior Fleadh and the GAA’s Scór competition. He also holds the record of being the youngest button accordion player ever to win the All Ireland Senior Fleadh at the age of just 19".
Regarding this composition, Pat would like to let you know that:
“This is the tune the way I composed it; every musician can put their own stamp on it and have fun changing it. Enjoy!”
This is the playlist that is in Pat’s YouTube channel where you can see him playing his compositions. You can find this tune transcribed in this post and some more: