What do you mean you don't believe in homosexuality? It's not like the Easter Bunny, your belief isn't necessary.
We probably, as primitive people, made music before we actually had a language, and that's where language comes from.
There are the further difficulties of building a population out of a diversity of races, each at a different stage of cultural evolution, some in need of restraint, many in need of protection; everywhere a bewildering Babel of tongues.