Hi Iver, thanks for your explanations. You know maybe I am illiterate music theory. I posted this video here to the forum » Musicians « because I find it very interesting. In the beginning of this video I thought that Reinhard Schimmelpfeng sounds »like a cat« maybe.
But it is a very cool musicial expression I think so too. And by the way Anima and Aeolus is an impressive theme for a composition. I have to listen their complete CD to see how they express this theme musicial.
I know Reinhard Schimmelpfeng personal because he gave me the introduction in overtone singing so I know that he compose and not "only" improvise music. And that's interesting to compose a part in your music in which you »sounds like a cat ... « (I mean sec. 8 ~ 10 of this video)