This land is all too shallow
It is painted on the sky
And trembles like the wind-shook rain
When the Raven King goes by
So, although I didn't really want to write a fanfic poem, I did. I don't know if H will be able to (or want to) set it to music.
The Raven King
The King has raised an army
And through the North will go
They are as white as blossom
And silent as the snow
Chorus:
This land is all too shallow
It is painted on the sky
And trembles like the wind-shook rain
When the Raven King goes by
The King brought on his soldiers
And through the night they trod
They were as red as hawthorn
And silent as the blood
The ice and snow are falling
They wash the world away
The Raven King comes riding
Along the starry way
I later found another interpretation which you can read here for instance. I'll see if I can find any others.