Voices of Passion - Were to find similar Female Vocals ?

[AllsWell]

Hey guys, does anyone know were I might be able to find music similar to these samples ?
                  -  http://www.soundsonline.com/Voices-Of-Passion    (click play on the right side of the screen)
 
Emphasis must be on the Vocals.
And it must be beautiful !

 
 
Let me know what you've got.
Thank you.
 
 
 

 

[JadeEast]

Le Mystere des Voix Bulgares.
 
 

 

[AllsWell]

Wow , that's pretty spot on, do you know of anything else in this style ?
 
Thank you, by the way.

 

[LithoJazoSphere]

Try this. she's one of my absolute favorite vocalists.