Source: Prácheňský graduál (Manuscriptorium: "Prácheňský kancionál")Siglum: CZ-HORm Sg 487Folios: 176rFolio: 176rSequence: 1Full text (or incipit): Deus in tua virtuteGenre: SqRubrics: De sancto AndreaFeast: AndreaeFeast (text): AndreaeCantus ID: ah53122Form: M