Tommy Makem is pure Keady quite a way removed from a Belfast accent, Frank Carson`s accent is Belfast sounding seeing he comes from there.
McGrath you are right about telling the difference between a Protestant northern accent and Catholic one, it is easy when the Prod is wearing a Sash,this Site gets crazier.
Daniel Day Lewis made a good fist of the accent, listening to discussion on actors and their various attempts at the accent, they all agreed it was very difficult.
Fibula, what would they do with a Cullybackey accent?,retire I think.