I must admit that I haven't listen to the entire album yet, but he is indeed interesting.
I was reminded of him recently while listening to a radio session of a band called "death vessel" the voice of the singer, though very different, is also very asexual.
http://www.wnyc.org/shows/spinning/episodes/2006/11/05the same web site also got a session by anthony himself, but i don't remember when it was made...