Two Servants, One Master: The Common Acoustic Origins of the Divergent Communicative Media of Music and Speech

Abstract

This article explores and examines research in the field of human vocalization, proposing an evolutionary sequence for human acoustic perception and productive response. This involves updating and extending Charles Darwin's 1871 proposal that musical communi-cation predated language, while providing the anatomical and behavioral foundations for the articulacy on which it depends. In presenting evidence on which a new consensus regarding the emergence of human vocal ability may be based, we present and review contributions from a wide range of disciplines, illustrating that the phenomenon of human musicality may have had more of a core function in shaping our anatomy and culture than has hitherto been recognized. Essential to the adaptive sequence on which this depends is human perceptual and productive response to the properties of the Harmonic Series. Both music and language have emerged from the auditory and performative consequences of this relationship.