Graz, Universitätsbibliothek, 30 (olim 38/9 f.)

A-Gu 30
Differentiae type
Information on differentia

A-Gu 29 and A-Gu 30 use tonary letters in the margins to indicate the differentiae. A tonary accompanies the two manuscripts on ff. 377v-379r of A-Gu 29. The images reproduced here are from this tonary. A few differentiae are notated on the staff in addition to, or instead of, the tonary letters, perhaps indicating changes to the choice of differentiae at a later date. The original indexing system in Cantus transcribed the tonary letters from the manuscript.


Downey, Charles, and Keith Glaeske. Inventory of Graz, Universitätsbibliothek, 30 (olim 38/9 f.). Edited by Debra Lacoste. In Cantus: A Database for Latin Ecclesiastical Chant. Directed by Debra Lacoste (2011-), Terence Bailey (1997-2010), and Ruth Steiner (1987-1996). Web developer, Jan Kolácek (2011-).

Contains 30 unique differentiae
Diff. ID Melodic transcription Mode Old code
72b 1--h-h-g-f-gh-gfed--4 Mode 1 ab
67c 1--h-h-g-f-gh-gh--4 Mode 1 ag
64c 1--h-h-g-f-g-gh--4 Mode 1 ah
52a 1--h-h-h-g-h-g--4 Mode 1 ap
66l 1--h-h-g-f-g-ghg--4 Mode 1 aq
66d 1--h-h-g-f-gh-g--4 Mode 1 a
T72bB 1--m-m-l-k-lm-lkjh--4 Mode 1 H
T150eA 1--k-k-k-k-gh-h--4 Mode 2 e
150e 1--f-f-f-f-cd-d--4 Mode 2 e
92r 1--k-k-k-hk-h-gg--4 Mode 3 ik
97l 1--k-k-k-h-kk-jh--4 Mode 3 i
86m 1--k-k-k-h-k-kk--4 Mode 3 ib
275a 1--h-g-h-k-g-efed--4 Mode 4 og
T275a 1--l-k-l-n-k-hjhg--4 Mode 4 og
45a 1--h-g-h-k-g-eg--4 Mode 4 o
T41aA 1--l-k-l-n-k-h--4 Mode 4 oc
359b 1--h-g-h-h-g-gh--4 Mode 4 oh
41a 1--h-g-h-k-g-e--4 Mode 4 oc
269a 1--k-k-l-j-k-hjhg--4 Mode 5 vb
129a 1--k-k-l-j-k-h--4 Mode 5 v
7a 1--h-h-f-gh-g-f--4 Mode 6 H
T7aA 1--m-m-k-lm-l-k--4 Mode 6 H
147w 1--l-l-m-l-l-lkl--4 Mode 7 y
281a 1--l-l-n-l-k-kh--4 Mode 7 yc
141l 1--l-l-m-l-kk-kk--4 Mode 7 yd
148j 1--l-l-m-l-kk-lk--4 Mode 7 yg
118a 1--k-k-j-k-h-g--4 Mode 8 w
119a 1--k-k-j-k-h-gh--4 Mode 8 wb
120a 1--k-k-j-k-h-ghg--4 Mode 8 wd
135b 1--k-k-k-k-kl-k--4 Mode 8 wg