Note 260 — Chapter XXII · MUSIC IN EUROPE FROM THE FIFTH CENTURY.
Reading edition
Monachus Engolismensis (the monk of Angouleme), an anonymous writer of this era, in his Vita Caroli Magni. quoted by J. J. Rousseau, in his Dictionnaire de Musique article “Chant,” also by Crowest, Mus. Anecdotes, v. 2, p. 239; Fetis, v. 4, p. 279; Ambros, v. 2, p. 94, etc., etc.