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