I does a good job of weaving several different themes together and it has the traditional "heroism" feel of a good TES theme. It sets the theme for Blackwood/Flames of Ambition which sounds like it'll be back to the more traditional heroic narrative after gothic Greymoor.
To me it's a vast improvement over Greymoor which I found uninspiring and flat, quite frankly I've never been a fan of Gregorian chants.
I really wonder what the lyrics for this theme say though.