Jonathan L. Friedmann, Ph.D.
Musician and naturalist Bernie Krause identifies two categories of organism-derived sounds: biophony, sounds created by non-human animals, and anthrophony, sounds produced by human beings. Some of these sounds are “musical” in the inclusive sense of displaying structured and intentional patterns that unfold over time. Precisely which sounds fit under this broad definition is debatable. However, on a basic level, we are intuitively attentive to musical sounds around us, both creaturely and human-made. What is perhaps less obvious—and more fundamental—is the extent to which our sense of music is physiologically derived.
This anthropogenic (human-born) appreciation centers on two essential musical elements: rhythm and melody. Both originate with inborn “instruments.” Heartbeats and breathing lay the foundations of rhythm. The voice sets the template for melody. As individuals mature and cultures progress, these internal mechanisms are translated into external instruments, which are themselves imitations and expansions of the organ-instruments within.
Rhythmic awareness begins in the womb. The underlying neural structures of hearing develop early in utero. By the end of the third trimester, a baby can distinguish a wide range of frequencies. This includes her own heart rate, which beats 120 to 160 times per minute, and her mother’s, which beats 60 to 80 times per minute. When the infant is born, the tempo of breathing is added to the mix. As the child develops, rhythmic exposure and experimentation are diversified: rocking, clapping, banging, shaking, walking, stomping, dancing. It is no coincidence that excited music is fast-paced, mimicking quick breaths and heartbeats, while relaxed music is slow-paced, mimicking calm breaths and heartbeats. Techno, dirges, marches, meditations, and all manner of musical styles play off these natural rhythms.
Similarly with melody. The mother’s voice, which also resonates in the womb, is our first introduction to melodic patterns. Newborns show a preference for music (organized sound) over noise (confused sound), and for vocal music over instruments. Mothers instinctively communicate through “motherese”—high-pitched, sliding, infant-directed intonations—which, through exaggeration, reinforces characteristics of the native language. The infant, in turn, babbles in language-patterned speech-song long before she can form words. These verbal and verbal-imitative vocables set the framework of melody, both sung and instrumental. In every culture, melody is deeply rooted in the phrasing, inflections, and articulations of the spoken vernacular.
We cannot escape the physiological/anthropogenic basis of music perception and production. Rhythmic and melodic sense are born with us. Our heart, breath, and voice invariably inform which sounds—human and non-human—we hear as music, and which ones we do not.
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