NationStates

The national anthem of Gowinia, "þan sóngyr deþ Valkirtyr" ("The Song of Valkir) was a revolutionary song that was adopted at the country's foundation in 1692.
The tune is ""Sovngarde" (lyrics begin at 0:25 and end at 1:52)
Lyrics :
Through our beautiful land
Through the lakes and the sea
The voice of the People is heard
And the Nords and the Dunmer will walk hand in hand
In the great nation that we call
Gowinia, Gowinia, Gowinia, Gowinia
We are blessed by the Gods,
by the Great Nine Divines.
Through the mountains and forests they cry,
and we remember the heroes of old,
those that fought with honor and pride,
and drew enemy blood with their sharp blades of steel.
And they fought against evil so that
Two enemy people may finally unite,
and they founded great Gowinia.

"Dovahkiin" has been our national anthem since the reorganization of the Allied States in 1874

Rule Britannia is Donnegall's national anthem.

https://www.youtube.com/watch?v=yHNfvJc99YY

Ascion is similar to RL Korean Empire. As such, our national anthem uses a melody from "Joguk Changa" or "Ode to the Fatherland", a korean patriotic song. The title is changed to "Jeguk Changa", meaning "Ode to the Empire". The lyrics are similar but some words are changed.
https://www.youtube.com/watch?v=OaPje84uZaY

My beautiful empire, the empire in the east
Our culture is splendid with a history of over ten thousand years
Abundant of fertile and paradisal land of grand scenery are grains and fruits
Accomplishing complete conquest, we get eternal freedom and peace
Holding the fluttering taegeuk flag, let's sing heartfully
Free union, the empire will be shining with us forever