Schartau Bjarne, Anonymous questions and answers on the interval signs

Schartau Bjarne, 

Anonymous questions and answers on the interval signs [Corpus Scriptorum de re Musica 4. Monumenta Musicae Byzantinae]. 

Wien 1998

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Conomos Dimitri, The Treatise of Manuel Chrysaphes, the Lampadarios

Conomos Dimitri, 

The Treatise of Manuel Chrysaphes, the Lampadarios: On the Theory of the Art of Chanting and on Certain Erroneous Views that Some Ηold about It (Mount Athos, Iviron Monastery MS 1120, July 1458) [Corpus Scriptorum de re Musica 2. Monumenta Musicae Byzantinae] 

Vienna 1985

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