We have always had musical notation, though what we have today is much more complex than any surviving records from clay tablets and such of ancient times. The

We have always had musical notation, though what we have today is much more complex than any surviving records from clay tablets and such of ancient times. The idea of communicating sounds via physical marks was there, but it clearly lost out- why bother writing a message that needs to be sounded out, then translated to a spoken language, when you can skip the translation step with something glottographic?