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This paper discusses the melodic formulas of psalmodic cycles of the Vigil in  Russian manuscripts of the 16th to 18th centuries. It shows that some special  formulas are used in the melos of the psalmody, along with the formulas of  znamenny and putevoy chant. They are found in the eight-mode cycles, such as  “Lord, I have cried” and “God is the Lord”, and in the cycles with one  melodic model (according to the Jerusalem Typicon tradition; sometimes  without indication of modes), such as the Polyeleos, the ainoi, or the first  antiphon of the first kathisma and the seventeenth kathisma. Similarities  between special formulas in various psalmodic cycles, including eight-mode  and non-octomodal Psalms, suggest the presence of remnants of the archaic  eight-mode psalmodic system in the cycles of the Vigil

Special melodic formulas in the Psalm cycles of the Vigil in Russian manuscripts of the 16th to 18th centuries