Porter, Dot2023-05-232022-11-072022-11-072022-11-07https://repository.upenn.edu/handle/20.500.14332/46576Porphyry's commentary on about half of Ptolemy's treatise Harmonics, focusing on harmonics and acoustics.Ptolemy active 2nd centuryHarmonicsMusic theory -- Early works to 1800Music theoryCodicesCommentariesDiagramsManuscripts GreekManuscripts RenaissanceMusic TheoryOther ClassicsRenaissance StudiesArticle