Thanks Lisa

I appreciate your clarification. Here's the hyperlink to the website address that you posted.

http://www.zoosemiotics.helsinki.fi/zm/music_and_primates.htm
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That subject is fascinating, and reminds me of information that I read from some source or the other about the communication of dolphins, porpoises, and whales. Here's an excerpt from an online article that I found about that subject:

"Cetaceans produce a variety of sounds. Baleen whales moan, grunt, chirp, whistle, and click to communicate; these sounds are made by the larynx. Male humpback whales (Megaptera novaeangliae) "sing" for up to 40 minutes at a time, presumably to attract females. Low-pitched moans produced by some baleen whales may be the loudest sounds produced by any animal; they carry underwater for hundreds of kilometers. Odontocetes communicate with whistles; these sounds are most likely produced by opening and closing nasal plugs. Odonotocetes also use clicks for echolocation, to navigate and to find food"...

http://64.233.169.104/search?q=cache:EMTcg4ssshoJ:animaldiversity.ummz.umich.edu/site/accounts/information/Cetacea.html+porpoise

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Thanks again, Lisa for alerting me and others to this topic. I agree that in the broad sense of the term, living beings such as birds, whales, and gorillas probably do pre-date humans as the first "folk singers,"

Best wishes,

Azizi