Some might not like Ulver, and there's some albums and songs I don't care for as much, but the fitting "summer is ending"- music can be found from the album "Shadows of the sun".
Especially dark, haunting and beautiful is the song "Funebre":
There is a circle
Around the cross
A flight of steps
Around the cross
A flight of steps
Into the earth
A black hole
A string of music
Hung from a willow
Weeping
Over the wood
And the bones
Burning
In memory of
A missing person
An angel
A flight of ravens
Into the sunset