Source: Graduale BenedictinumSiglum: CZ-R 418Folios: 140r-140vFolio: 140rSequence: 1Full text (or incipit): Quid tu virgoGenre: SqRubrics: De uno martyreFeast: Comm. unius MartyrisFeast (text): Comm. unius MartyrisCantus ID: ah53239Form: T