Source: SK-BRl (Bratislava) Rkp. 387 Missale NotatumFolio: 138rSequence: 1Full text: In medio ecclesiae aperuit os ejus et implevit eum dominus spiritu sapientiae et intellectus stola gloriae induit eum alleluiaFeast: Joannis Port. Lat.Office: MASSGenre: InCantus ID: g01342Image link: http://147.213.131.4:85/digi/Rkp_zv_387/LKB___RKP_ZV_387_____24TL/SK/1_1_0138R.h…