http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
xx, 250 pages : illustrations, music ; 26 cm.
Gregorian chant in the service of the church -- The beginnings of Gregorian chant; other rites and other sorts of chants -- Tradition and innovation in medieval chant : from the ninth to the sixteenth century -- Thinking about Gregorian chant in the Middle Ages, and notating it -- New chants for new times : from the sixteenth century to the present; aspects of performance.
Includes bibliographical references (pages 232-240) and index.