Willi Apel's classic study of Gregorian chant is now in paperback. This extensive survey describes the evolutionary processes of its long history as well as its definition and terminology, the structure of the liturgy, the texts, the notation, the rhythm, the tonality, and the methods and forms of psalmody.

Gregorian Chant 1960, Indiana University Press, Bloomington, IN

ISBN-13: 9780253206015

Trade paperback

Gregorian Chant 1958, Indiana University Press

ISBN-13: 9780253326508