[7.] Translations of first lines: W. J. Copeland, C. Bigg, R. E. Messenger, J. M. Neale.
[8.] Translations of first lines: J. M. Neale, E. Caswall.
[9.] Translations of first lines: J. M. Neale, H. M. Jones, R. E. Messenger, S. Hurlbut.
[10.] Myers, op. cit. (see [note 3]) 18-22.
[11.] G. Reese, Music in the Middle Ages (New York, 1940) 104.
[12.] Caelius Sedulius, 5th C., an early imitator of Ambrose, wrote a well-known alphabetic hymn, A solis ortus cardine.
Chapter Two
Early Middle Ages: The Old Hymnal
[1.] Regula Sancti Benedicti, IX.
[2.] P. Batiffol, Historie du Breviare romain, translated by A. M. Y. Bayley (London, 1912), chap. I.
[3.] Dom A. Wilmart, “Le Psautier de la Reine,” (Cod. Vat. Reg. II), Revue Benedictine XXVIII (1911) 376 ff.