So simple, yet so beautiful. I cut a section and used as one of the fundamental sounds in this music piece. https://soundcloud.com/alienxxx/10-years Modified versions of this sound are also used abundantly throughout the piece.
Great sound! I'm using it as part of a dungeon for a talk bed on my radio show tonight, doing a Halloween special. Here's the blog entry where I put all the attributions. http://www.theglobalvoice.info/blog/?p=645