This is Gustav Holst's Ave Maria:



I also found the English translation to Hjaðningaríma, for those who are interested to know what the lyrics mean:

The grim giants are frightening
The ancients frost giants
And dwarfs, elves, ghosts
Demigoddesses, enchantresses, Norns

I was tired and had a hard journey,
I had bad premonitions,
Finally I sat down
Under an oak tree in the forest

The tree stood leaning on a slope
At a large river's side
Its branches shadowed the entire land
And its leaves hung down low

The grim giants are frightening
The ancients frost giants
And dwarfs, elves, ghosts
Demigoddesses, enchantresses, Norns

The forest giant uttered mighty bellows
Through the field of winds
Enormous floods of water
Cascaded from the castle of storms

 - Quianna :-)