Porter, Dot2023-05-232023-05-232015-08-022015-04-25https://repository.upenn.edu/handle/20.500.14332/46365http://hdl.library.upenn.edu/1017/d/medren/5057421Music--Early works to 1800Music theory--Arab countries--Early works to 1800 CodicesCommentariesDiagramsTreatisesManuscripts Persian--15th centuryManuscripts RenaissanceFacsimile of LJS 295, Risālah al-sharafīyah fī al-nisab al-taʼlīfīyahBook