From ancient times to the present day, writers and thinkers have remarked on the unique power of music to evoke emotions, signal identity, and bond or divide entire societies, all without the benefit of literal representation. Even if we can't say precisely what our favorite melody means, we know very well what kind of effect it has on us, and on our friends and neighbors.

According to Aram Sinnreich, this power helps to explain why music has so often been regulated in societies around the globe and throughout history. Institutional authorities ranging from dynastic China's "Office to...