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Porphyry's Commentary On Ptolemy's Harmonics

RRP $325.99

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Porphyry's Commentary, the only surviving ancient commentary on a technical text, is not merely a study of Ptolemy's Harmonics. It includes virtually free-standing philosophical essays on epistemology, metaphysics, scientific methodology, aspects of the Aristotelian categories and the relations between Aristotle's views and Plato's, and a host of briefer comments on other matters of wide philosophical interest. For musicologists it is widely recognised as a treasury of quotations from earlier treatises, many of them otherwise unknown; but Porphyry's own reflections on musical concepts (for instance notes, intervals and their relation to ratios, quantitative and qualitative conceptions of pitch, the continuous and discontinuous forms of vocal movement, and so on) and his snapshots of contemporary music-making have been undeservedly neglected. This volume presents the first English translation and a revised Greek text of the Commentary, with an introduction and notes designed to assist readers in engaging with this important and intricate work.


A History Of Spam

RRP $13.99

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Viagra for cheap! Your long lost Nigerian friend who wants to make you a millionaire! Refinance your house! Seriously! What is up with all that junk?! Have you ever looked at your junk mail and wondered, "where does it all come from?" And how on Earth did they get your email? And who on Earth actually believes any of it? Believe it or not, these messages more often then not come from people who build entire companies around spamming your mailbox-and it is costing the world hundreds of millions annually. Sit back, relax, and prepare to read one of the oddest histories of your life! Don't worry-we promise not to spam your mailbox when you are done!



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