This work is a continuation of our effort in the field of underscoring the differences within the services of the asmatic rite and attempts to systematize its noted diversity. As in the paper about Vespers, and this paper in conjunction with this effort, we highlight the significance of these classifications for furthering research into this variability, which in alignment with the prevailing research, represents a marker of historical development in the earliest period of the asmatic rite, i.e. the daily cathedral form of the Byzantine liturgical cycle. All the various forms of matins that are evidenced in the manuscripts Patmos 266, Holy Cross 40, and Dresden 140A belong to one of the following classifications: 1) daily matins, 2) Sunday matins, 3) matins of great feasts, 4) matins of special celebrations. The substantial differences that exist between the aforementioned groupings are the consequence of historical development and the accumulation of new elements within the ancient structure of the service. The work highlights the need for further research in the field of the asmatic rite, which comprises the foundation of the Byzantine liturgical form.