On the Liturgy
History of Chant
William Mahrt,
"Gregorian Chant as a Paradigm of Sacred Music
,"
Sacred Music
133 (2006) 5-14.
Kenneth Levy,
Gregorian Chant and the Carolingians
(Princeton, 1998).
Medieval Time-Keeping
April Farrell,
"Court Will Begin at Half-Way Terce: Keeping Time in High Medieval Europe"
.
On the Guidonian Hand
Graphic Image of the Notes and Syllables
.
Echoes Today
Here on Earth,” July 17, 2008
, “Gregorian Chant Hits the Top of the British Pop Chart”
Music Sacra
, The Church Music Association of America.