Source: SK-BRl (Bratislava) Rkp. 387 Missale NotatumFolio: 236rSequence: 8Full text: Propter quod deus*Feast: De Sancta CruceOffice: MASSGenre: GrVPosition: 01Cantus ID: 505005aImage link: http://147.213.131.4:85/digi/Rkp_zv_387/LKB___RKP_ZV_387_____24TL/SK/1_1_0236R.h…
