The discussions of pheromones suggests a question, although it might seem elemntary to many of you. What came first, a spoken language or song? If other species (like whales, dolphins, birds, etc.) use "songs" to communicate, did humans do this first too? In other words, could it be that human communication was based on songs, rather than "unsung" languages.
    Pheromones suggest such a primitive level of communication, that further suggests that one of the next evolutionary stages would be songs to attract mates, signify family bonds, pacify children, etc?
    Maybe music is inbred. predating a more structured language??