There are several world bands out there that claim to be inspired by Tolkien.

Annatar symphonic dark metal from Netherlands-sing in dutch.
Anorien from France (guess what language they sing).
Arathorn symphonic dark metal from Germany.
Roberto May-Italy-The Battle of Pelennor Fields can be heard here: http://stage.vitaminic.it/main/roberto_may2
The Middle Earth Band -Finland– indian râga music
A special emphasis on black and pagan musics
Nargothrond -Portugal- vicious orcish steel is how they describe themselves.
Northwood Ice Pentagrmas -Canada-black metal.
Nova Ensemble -Australia- abstract experimental/new age
Orcish Blood -Russian- black metal

Led Zeppelin's "The Battle of Evermore":

The Queen of Light took her bow and then she turned to go.
The Prince of Peace embraced the gloom and walked the night
alone.
...War is the common cry; pick up your swords and fight.
The sky is filled with good and bad that mortals never know.
.
..Oh well, the night is long, the beads of time pass slow,
Tired eyes on the sunrise waiting for the Eastern glow
The pain of war cannot exceed the woe of aftermath.
The drums will shake the castle wall.
The Ringwraiths riding black. Ride on.
Sing as you raise your bow, shoot straighter than before...
No comfort has the fire at night that lights the face so cold