“…Every known human culture has some form of musical expression (Nettl, 1983), and although nonhuman primates do not produce music, they have similar auditory structures, perception, and behavioral responses (Arcadi, Robert, & Boesch, 1998; Boesch & Boesch-Acherman, 2000; Prestrude, 1970; Snowdon & Teie, 2010). Humans report that music has a significant effect on social arousal and mood (Balch & Lewis, 1996; Thompson, Schellenberg, & Husain, 2001), and, similarly, chimpanzees ( Pan troglodytes ) show an increase in social behavior and a decrease in agonism when music is played (Howell, Schwandt, Fritz, Roeder, & Nelson, 2003).…”