Is it actually an "All Irish Format" the owner is looking for?
Having frequented many Irish taverns in my younger day as I was going through my folk phase in the seventies, the music of the time was by artists such as Tommy Makem and/or The Clancy Brothers. This was played (live) in these places. But try as I may, I can’t seem to find much of that in karaoke format.
I have recently visited a couple of such establishments here in AZ. It seems the music is some of the old school as I just mentioned, but it is also recent music from young Irish artists and bands. I listened to a number of tunes I hadn’t heard before, but I understood from the introductions that the source was Irish.
I would first ask the owner (if you haven’t already) exactly what he/she’s looking for. I’ll bet it’s not 100% St. Patrick’s Day Toa-Ra-loo-Ra-Loo-Ra type music. While it would be good to have the standards, I’ll bet they’ll be happy to sing from what your library has to offer. After a while you’ll learn what else the clients would like.
I would also suggest that you contact some of our international members here from that part of the world. Check out Irish gift store in your area if you have any. You might even have to order such music from Ireland.
Below are a couple of reference sites to some of the old school Irish I was speaking of. Not karaoke, but they may at least provide titles and artists to look for in karaoke format.
www.IrishCountryMusic.Com
www.makem.com