George Amargianakis, An Analysis of Stichera in the Deuteros Modes. The Stichera Idiomela for the Month of September in the Modes Deuteros, Plagal Deuteros, and Nenano, Transcribed from the Manuscript Sinai 1230 (A.D. 1365) | George Amargianakis, An Analysis of Stichera in the Deuteros Modes. The Stichera Idiomela for the Month of September in the Modes Deuteros, Plagal Deuteros, and Nenano, Transcribed from the Manuscript Sinai 1230 (A.D. 1365) |