Source: SK-BRl (Bratislava) Rkp. 387 Missale NotatumFolio: 033rSequence: 1Full text: Alleluia Haec dies quam*Feast: Octava PaschaeOffice: MASSGenre: AlPosition: 1Cantus ID: 008425.1Image link: http://147.213.131.4:85/digi/Rkp_zv_387/LKB___RKP_ZV_387_____24TL/SK/1_1_0033R.h…