1. Calvin M. Bower, Boethius' "The Principles of Music," An Introduction,Translation, and Commentary [Ann Arbor: University Microfilms, 1967], p.440BowerThe Principles of Music440An Introduction, Translation, and Commentary1967
2. Bower, pp.212-213212
3. Bower, pp. 440-43440
4. Ibid., p. 443.443
5. Mailänder Traktat, ed. Hans Heinrich Eggebrecht in Ad Organum Facien-dum (Mainz: B. Schotts Sähne, 1970), pp. 111-15Eggebrecht111Mailänder Traktat1970