Conventione autem facta ex

Source: 
Stuttgart, Württembergische Landesbibliothek, HB.I.55
Marginalia: 
4
Folio: 
049r
Sequence: 
2
Feast: 
Dom. Septuagesimae
Office/Mass: 
M
Genre: 
A
Position: 
3.
Cantus ID: 
001915
Mode: 
7
Differentia: 
yc
Differentia database: 
1--l-l-m-l-k-jh--4 143b
Extra: 
?