Hi, I live in a Gaeltacht area in Ireland (irish speaking) area, but was born in New Zealand. The hymm 'A Mhuire Mháthair' is sung at the chapel here in Glencolmcille and is as far as I can remember from hearing it in NZ the same (give or take a few 'irishisms'). I wouldn't be too good on knowing the differences in the timing but there doesn't appear to be much difference (my daughter says the same and she has a better ear than me - also speaks Irish so that helps a little with the difference).