I think you mean Michael Coleman.

I can't speak for the Irish scene, but in the Scottish one the reason for tunes most often going in sets of two or four is because that's how you want them for the most common dances. And because of that demand, there were a lot of recordings that strung together sets in that way. Often the names got mislaid in production, so people who learned the tunes off records got the wrong names or no names at all.

I'm not often near Manchester these days but yes I'll look you up if I get the chance.