附註:Introductory matter in English, French, and German.
Vol. 3 has text in Latin; notes in French.
Vol. 3 has title: The theory of music.
v. 1 [without special title] -- v. 2. Italy, edited by Pieter Fischer -- v. 3. Manuscripts from the Carolingian era up to c.1500 in the Federal Republic of Germany (D-brd) by Michel Huglo and Christian Meyer.
