That track by Robin Morton and Cathal McConnell, from their now deleted (?) LP of the same name has been released in the UK on the Globestyle Irish CD CDORBD 094 A Living Thing. It's track 13 of the CD which is the last CD in a series of 9 covering Irish music (mostly from the Topic records vaults) compiled by Ron Kavana a few years back.

I don't know the US availability but it's an excellent set of CDs if you can get them.