Gregorian chant.
Apel, Willi, 1893-1988.
Gregorian chant. - Bloomington, Indiana University Press [1958] - xiv, 529 p. 8 facsims., music. 24 cm.
Includes chapters on the Ambrosian chant, by R. Jesson and the Old Roman chant, by R. J. Snow.
Bibliography: p. xiii-xiv.
57010729
Gregorian chants--History and criticism.
ML 3082 / .A64
Gregorian chant. - Bloomington, Indiana University Press [1958] - xiv, 529 p. 8 facsims., music. 24 cm.
Includes chapters on the Ambrosian chant, by R. Jesson and the Old Roman chant, by R. J. Snow.
Bibliography: p. xiii-xiv.
57010729
Gregorian chants--History and criticism.
ML 3082 / .A64