It should be Dónal Maguire, if you were being picky.

Dónal and all those other wonderful singers gathered together in one place in one weekend- amazing singing, stimulating discussion of the songs, their history, singing styles- and above all, lovely, friendly people!

Yes, I will definitely be there.

(Another thread mentions Dónal at the moment; Dónal Maguire in Wash DC area- good man yerself!)