Azizi suggested I share this link to research done on gorillas that seem to do a certain amount of community singing. The first time I read about this was in the NY Times, maybe around the early 1970s, about gorillas singing while gathering berries. Since then researchers have continued recording songlike patterns among other primate groups including orangutangs and gibbons, but it is the gorilla story I encountered first. I'm attaching a url to some stuff on primates and song:

http://www.zoosemiotics.helsinki.fi/zm/music_and_primates.htm

I don't know whether people in Asia or Africa or living in close proximity to Gorillas or other primates think of this sort of communication as song. It would be nice to find out what other cultural groups think of as song and whether they think of the sounds other living beings make as being in definitional continuity with the songs humans sing. I think some of the Siberian and Inuit people do. I do. Hope this clarifies what i was trying to say and why.