A Stanford University study suggests that synchronized activities like marching in time and chanting in church can improve how societies function. We discuss the study with its co-author, Scott Wiltermuth, and Daniel Levitin, author of The World in Six Songs: How the Musical Brain Created Human Nature. Later: Henkjan Honing of Amsterdam's Cognitive Science Center joins us to talk about a new study on newborns and musical beats. This is a repeat broadcast of Soundcheck.