Two concerts in Northern Ireland - tickets to go on sale 17th September - They perform at St Patricks Cathedral, Armagh on November 1st and return to St Peter's Cathedral the following day.
There are two St Patrick cathedrals in Armagh -

Church of Ireland (Medieval) on the left and Roman Catholic on the right - they both face each other on top of their respective hills. It's the Roman Catholic Cathedral Libera are perfoming at.