gregorian chant

Gregorian chant is the oldest surviving body of Western music, consisting of monophonic (single-line) melodies sung without instrumental accompaniment. Named after Pope Gregory I, who is traditionally credited with organizing the repertoire, it was the principal music of the Catholic Church for over a millennium. The chant uses a system of eight modes rather than the major-minor key system that came later. Its flowing, free rhythm follows the natural accents of the Latin text rather than a fixed meter. In the 20th century, the monks of the Abbey of Solesmes led a major effort to restore authentic performance practices, and Gregorian chant recordings have occasionally found mainstream commercial success.