sentences:  Although the Georgian Iadgari is not the oldest manuscript among the complete tropologia which could be preserved until the present day, the Iadgari offers the most complete insight into the development of hymnography and the cathedral rite of Jerusalem.Other hymn books developed between the 7th and the 11th centuries starting from the Hagiopolitan hymn reform of 692.They contain "stichera, kontakia" all kinds of "troparia" and "canons" without being necessarily dependent on the tradition of Byzantine chant and later developments of the Stoudios Monastery since the 9th century.