Described Thomas James 183; Stanley N. 25; Nasmith 410; Scriptorum de musica medii aevi: Novam seriem a Gerbertina alteram, ed. E. de Coussemaker, vol. 1 (Paris 1864), pp. xiv–xv; James, Corpus 410; Walteri Odington Summa de Speculatione Musicae, ed. Frederick F. Hammond, Corpus Scriptorum de Musica 14 (1970), 13,17–19 and plates 1 (of Pt. 1, f. 1), 2 (of Pt. 1, f. 14v), 5 (of Pt. 1, f. 35v) and 6 (of Pt. 1, f. 36); Cambridge Music Manuscripts, 900–1700: Published to Coincide with an Exhibition Held at the Fitzwilliam Museum in July and August 1982, ed. Iain Fenlon (Cambridge, 1982), no. 33 and plates on p. 108 (of ff. 34v–35); Répertoire International des Sources Musicales, Vol. B iii 4, Manuscripts from the Carolingian Era up to c. 1500 in Great Britain and in the United States of America: Descriptive Catalogue Part I, ed. Christian Meyer (Munich, 1992), pp. 4–5; Répertoire International des Sources Musicales, Vol. B iii 6, Manuscripts from the Carolingian Era up to c. 1500: Addenda, Corrigenda, ed. Christian Meyer et al. (Munich, 2003), p. 377. Partial description in M.F. Bukofzer, Geschichte des englischen Diskants und des Fauxbourdons nach den theoretischen Quellen (Strasbourg, 1936), p. 51. Partial description of Pt. 1 in Joseph Smits van Waesberghe, Cymbala: Bells in the Middle Ages, American Institute of Musicology, Musicological Studies and Documents 1 (Rome, 1951), p. 41; Klaus Jürgen Sachs, Mensura fistularum: Die Mensurierung der Orgelpfeifen im Mittelalter, vol. 1, Schriftenreihe der Walcker-Stiftung für Orgelwissenschaftliche Forschung 1 (Stuttgart, 1970), p. 23. Partial description of Pt. 2 in Klaus Jürgen Sachs, Der Contrapunctus im 14. und 15. Jahrhundert: Untersuchungen zum Terminus, zur Lehre und zu den Quellen, Beihefte zum Archiv für Musikwissenschaft 13 (Wiesbaden, 1974), p. 188; Oliver B. Ellsworth, The Berkeley Manuscript: University of California at Berkeley Music Library, MS. 744 (olim Phillipps 4450). A New Critical Text and Translation (Lincoln, Nebr., 1984), p. 282; Index of Images 106 (Pt. 1 of MS).

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Pt. 2, f. 13v

Here begynnes a schorte tretys of the reule of discant it is to witt þat þer are acordance withouten nowmber but ther are ix in vse whuch ix be thees the vnisoun þe thirde þe ffyfte þe sexte þe eyght the x the xij the xiij and the xv …