This is only an explanation of the appeal of music to the physical body, but music reaches further than the physical body; it only depends on what kind of music it is. There is a tradition that the first language in the world consisted of music; after that a language of words came into being. Even now among primitive races there is a language of sounds; also, the more musical languages of the world are more expressive, whereas the languages which have less music in them are less so. It is not only words that convey a meaning; very often the tone of the voice conveys it much better, and sometimes the same word can have two or more meanings depending on the tone in which it is spoken.