Emotional origins of music
The theory of the emotional origins of music, first proposed by David Teie, is based on the proposition that "... human music presents, concurrently and consecutively, a quickly changing array of acoustic triggers that are specific to Homo sapiens... each capable of inducing an emotional response." The relevant acoustic triggers come from two primary sources: 1) sounds heard by the fetus in the womb, and 2) emotionally generated vocalizations.