You should try to listen to
"The Benedictine Monks Of Santo Domingo De Silos : The Mystery Of Santo Domingo de Silos"
It's some the real medieval-sounding monk song, might be a little to much in the long run, but I really like it, though.
Yes, the LOTR soundtracks are very good also, but there's also "The Tolkien Ensemble" who are some danes (yes, of all people) who has made music for all the poems and songs in LOTR. It's really good.
And then, of course, there's Era, that's also really good. Go to Comment
A world whose lands are made up of huge terrain spheres that rotate constantly with most portion underwater. As time passes, the shape of the bodies of water change, landmarks shift inside the new border lines, and mountains tilt to different degrees. Land dwellers are gypsies that can never build anything permanent, and somewhat ironically, the only stable settlements are large structures built at sea.