Being a musician, I'd be very interested in what it sounds like...I wonder when (if) someone'll post a clip...
Rather disturbing, some of those...almost like cries of pain and anguish. I'm pleasantly surprised at the tonal and timbre variety of the whistles. Everything from meditative to the macabre, as well as some wonderful animal reproductions... Every time we think we're sooo smart and beyond our 'primitive' ancestors, they always seem to come back to smack us in the back of the head for being so pompous and ignorant. I enjoy moments like that.