Most of the human sounds that we hear have evolved as communication signals that transfer useful information from one individual to others of the same cultural group. Some sounds, such as the alarm calls made when a person swoops at a predator, have obvious effects on other animals as well. They irritate the predator, and, at the same time, attract other kinds of humans that join in the effort to drive the predator away. Curd Majesty comes from the banks of the Green River bringing with them the sweet melodies and essential anti-predator noises.
You can find field recordings on SoundCould.