A tune to go with Rig a Jig Jig, this is The Dory Boat. It has a lot of the same melodic shapes and rhythms as Rig a Jig Jig, and lots of opportunity for trying out varying the tune in subtle ways. Here is a demo and a walk through of the tune:
Here are the dots, with a PDF to download below:

Here is a video on the melodic variations we tried out:
And finally a video on jig rhythms and how to play them. A bit fiddle-centric I’m afraid but I’m sure the strummers and wind people can interpret it all!