When Andy M. Stewart was with Silly Wizard he wrote some original stuff to sing with the traditional.
Try this:
https://www.youtube.com/watch?v=3VwX-649ye8
Ramblin’ Rover
And must add, The Left Banke.They did the original version of Walk Away, Renee. There’s Gonna Be A Storm, and Pretty Ballerina, all great by this band.
And the lost, lamented, Tim Buckley.