of the Asma (the cathedral rite was called ἀκολουθία ᾀσματική) that consisted of 4 , 4 , 4 , and 4 . It seems that until the time, when the Hagiopolites was written, the octoechos reform did not work out for the cathedral rite, because singers at the court and at the Patriarchate still used a tonal system of 16 echoi, which was obviously part of the particular notation of their books: the asmatikon and the kontakarion or psaltikon. But neither any 9th-century Constantinopolitan chant book nor an introducing treatise that explains the fore-mentioned system of the Asma, have survived. Only a 14th-century manuscript of Kastoria testifies cheironomic signs used in these books, which are transcribed in longer melodic phrases by the notation of the contemporary sticherarion, the middle Byzantine Round notation. The transformation of the kontakion The former genre and glory of Romanos' kontakion was not abandoned by the reformers, even contemporary poets in a monastic context continued to compose new liturgical kontakia (mainly for the menaion), it likely preserved a modality different from Hagiopolitan oktoechos hymnography of the sticherarion and the heirmologion. But only a limited number of melodies or kontakion mele had survived. Some of them were rarely used to compose new kontakia, other kontakia which became the model for eight prosomoia called "kontakia anastasima" according to the oktoechos, had been frequently used. The kontakion ὁ ὑψωθεῖς ἐν τῷ σταυρῷ for the feast of cross exaltation (14 September) was not the one chosen for the prosomoion of the kontakion anastasimon in the same echos, it was actually the kontakion ἐπεφάνης σήμερον for Theophany (6 January). But nevertheless, it represented the second important melos of the which was frequently chosen to compose new kontakia, either for the (introduction) or for the oikoi (the stanzas of the kontakion called "houses"). Usually these models were not rubrified as "avtomela", but as idiomela which means that the modal structure of a kontakion was more complex, similar to a sticheron idiomelon changing through different echoi. This new monastic type of kontakarion can be found in the collection of Saint Catherine's Monastery on the peninsula of Sinai (ET-MSsc Ms. Gr. 925–927) and its kontakia had only a reduced number of oikoi. The earliest kontakarion (ET-MSsc Ms. Gr. 925) dating to the 10th century might serve as an example. The manuscript was rubrified Κονδακάριον σῦν Θεῷ by the scribe, the rest is not easy