Source: SK-Bra (Bratislava) Antiphonary of Bratislava IIa EC Lad.4Folio: 073rSequence: 1Full text: Muro tuo inexpugnabili circumcinge nos domine et armis tuae potentiae protege nos semper libera domine deus Israel clamantes ad teFeast: De ProphetisOffice: MGenre: RPosition: 5Cantus ID: 007192