"Land of My Fathers" is, in my opinion, easily one of the single best national anthems in the world, and the passion the Welsh people put into singing it is pretty much unrivaled. I mean, how many anthems sung at sporting events have a four-part harmony? It's just too awesome. My guess is that you're Welsh judging by your profile picture and your knowledge of the anthem, and if that's true, I'm really jealous. I'd absolutely love to learn the language. It's a really fascinating look into an almost alien linguistic world from the perspective of a native English-speaker, and it sounds so cool when it's spoken, too.
On a final note, I really think the Union Jack should have included Y Ddraig Goch in the flag. I mean, think how cool that would be!
Cymru am byth. :-)