Ecce mitto angelum meum qui

Source: 
Stuttgart, Württembergische Landesbibliothek, HB.I.55
Marginalia: 
4
Folio: 
062v
Sequence: 
6
Feast: 
Dom. 4 Quadragesimae
Office/Mass: 
M
Genre: 
R
Position: 
2.1
Cantus ID: 
006598
Mode: 
4