Source: SK-BRl (Bratislava) Rkp. 387 Missale NotatumFolio: 179vSequence: 1Full text: Alleluia Concussum est mare et contremuit terra ubi archangelus Michael descendebat de caeloFeast: MichaelisOffice: MASSGenre: AlCantus ID: g00396Image link: http://147.213.131.4:85/digi/Rkp_zv_387/LKB___RKP_ZV_387_____24TL/SK/1_1_0179V.h…