First of all thanks for the excellent post, not only this one but many of them.
Well, I write a blog about traditional music too, in portuguese though (I am brazilian – no, we do not speak spanish lol) at http://revistamovinup.com/thatsallfolk/.
I also wrote about, and posted records from, Séan Ó Riada there. Introducting him to the brazilian listeners of irish traditional music (who knows a lot about the Chieftains, but nothing from the genius of Sean ó Riada).
A link to his 64’s record Sa Gaiety maybe will be an adition here(?): http://www.mediafire.com/download.php?yqg42nm10gd
About Sean the man, I was reading a Chieftains biography, John Glatt’s book, and I found some funny histories:
First of all, his unusual way to deal with money. One day, tells a Ceaóltóirí Cualann percussionist, Sean ó Riada arrived to give him a ride, driving his brand new Jaguar, just to ask him: “Could lend me some money for the petrol?” lol
The books tells also that Ó Riada often used the holes in the wooden floor of his house as an ashtray lol!
All The Best,