Presented in Anthology Volumes 24-25 are the chants of Great Friday shown in the manuscripts by Philimon Koridze, Ekvtime Kereselidze, and Razhden Khundadze, as well as in Koridze's published scores in order to fully sing this day's liturgical services. These manuscripts are kept at the Korneli Kekelidze National Center of Manuscripts and Anzor Erkomaishvili Folklore State Center. The absolute majority of these chants is being printed for the first time. There are also some works (for example, heirmois, troparia, prokeimenon Psalm verses, etc.) in the present volume that have been arranged by anthology editors to the corresponding original melodic sources in agreement with the chant tradition. The complete chant cycle of Great Friday is being published for the first time in the history of Georgian music.