Source: SK-BRl (Bratislava) Rkp. 387 Missale NotatumFolio: 144rSequence: 4Full text: Justus non conturbabitur*Feast: Joannis BaptistaeOffice: MASSGenre: GrCantus ID: g02344Image link: http://147.213.131.4:85/digi/Rkp_zv_387/LKB___RKP_ZV_387_____24TL/SK/1_1_0144R.h…