upennmanuscripts: LJS 295 - [Kitāb-i Advār]This manuscript features a Persian translation of al-

upennmanuscripts: LJS 295 - [Kitāb-i Advār] This manuscript features a Persian translation of al-Urmawī’s treatise the theory of music, including division of frets, the ratio of intervals, consonance and dissonance, cycles, rhythmic and melodic modes, and the 5-string oud or lute. The treatise is followed by an anonymous commentary. It was compiled in Iran, in A.H. 815 (1412 CE).  Click here for the facsimile, or here for additional information. -- source link

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