Source: SK-BRnm (Bratislava) Slovenské národné múzeum - Hudobné múzeum GradualeFolio: 066rSequence: 2Full text: Protector noster aspice deus et respice super servos tuosFeast: Fer. 2 Hebd. 1 Quad.Office: MASSGenre: GrCantus ID: g00709Mode: 5