Hm.
I like Gregorian Chants.
“pfft”
I do too. Polyphony is best - Tallis, Shepherd, Byrd, etc.
Try the Russian stuff. You’ll like it: http://www.youtube.com/watch?v=vyFkPd6fEuI
The Bulgarians can do basso profundo well: http://www.youtube.com/watch?v=dituAuhI9bM
Then scrub your musical brain with this: http://www.youtube.com/watch?v=hdjIEaDgEr8
I like Mongolian throat singing (one throat two sounds) http://www.youtube.com/watch?v=0M3YFK3sJ54
But I like the naturally darker and deeper throat singing of the Tuvans: http://www.youtube.com/watch?v=zwi6gF-0mP4
I also like Tibetan horns - but who doesn’t right? http://www.youtube.com/watch?v=ntf75csds6k
The only thing more fun than that is the carnyx: http://www.youtube.com/watch?v=hVAWwWi0DbE The ancient Celts knew how to ROCK!!!