Before Johannes Gutenberg’s famous invention, books were rare and precious items. Thus any given synagogue would have no more than a few holiday prayerbooks. Most literate Jews might know the daily liturgy more or less by heart, but the recital of special holiday prayers was solely the province of the cantor. Matt Austerklein, drawing on a 17th-century Yiddish text, explains how this changed:
Whereas only the cantor had access to handwritten prayerbooks in the medieval period, the age of printing now turned everyone into a cantor. Common people could finally read the words (which they could pronounce, but perhaps not understand), and this created a cacophony above which the cantor simply cannot be heard.
This change ultimately subverted the entire purpose of the cantor’s specialization, which is to express the prayers with understanding and devotion, and to relieve others of their obligation to do so. This vocal empowering of the congregation also potentially drove other musical innovations, including an observable increase in volume (particularly in Eastern Europe) and specialized musical forms which could be heard above the din of siddur-carrying Semites.
More about: Cantors, Synagogues