Source: SK-BRl (Bratislava) Rkp. 387 Missale NotatumFolio: 176rSequence: 1Full text: Protege domine*Feast: Exaltatio CrucisOffice: MASSGenre: OfCantus ID: g00376Image link: http://147.213.131.4:85/digi/Rkp_zv_387/LKB___RKP_ZV_387_____24TL/SK/1_1_0176R.h…