Jig Rig by Michael Denieffe

https://jigrig.net/wordpress/

A tune resource for learners, with an emphasis on accordion.

"This site is in association with Ceolan School of Irish Traditional Music and Mulroy Music to help students gain easy access to some of the tunes studied in class. It also contains other tunes popular with teachers and learners. The tunes are suitable for beginners and intermediate players."