When the inhabitants of the primordial island made cries of joy or pain, they expressed their emotions more or less in clear tone changes. This is so important in everyday life that even little bees dance to convey messages. Sending and receiving information may be the instinct of living things. At some distant time in Earth's history, all primitive humans had to express their emotions in nearly the same way.
It is speculated that when this ineffable language developed into the use of certain sounds as symbols of emotion, without which emotions could have been expressed through the natural sounds they produced, then there was the origin of language, which, unlike language, music is still the language of the world. Language and music seem to have appeared later than artificial language. To be precise, it may be that the text appeared relatively late, and the language is not necessarily true. This is merely speculation.
The intellectual development of the Saimans of the Malay Peninsula and the Ajitas of the Philippines begins with a clear language, where mathematics can be fainted in the toilet. Leave the music to the expression of emotion. Primitive peoples would collide with one object with another when dancing, sometimes with the clanging of stones, the crash of wood, or the collision of stone spearheads with wooden shields (a custom that continued until shields and spears were discarded), meaning to express something that language could not express. This meaning naturally changed from the initial simple expression of fear to welcoming the chief.
And, if anyone wants to push this theory to the extreme, we may still see a hazy memory of it, in which the orchestra's violinist strikes the back of the violin with his bow and applauds a distinguished guest (perhaps a famous player).