{"product_id":"harmonograph-a-visual-guide-to-the-mathematics-of-music","title":"Harmonograph: A Visual Guide to the Mathematics of Music","description":"Why did Pythagoras pause outside a Blacksmith's workshop? Can the nature of Harmony really be understood visually? Why do harmonies leave gaps or 'commas' when added together? \u003cp\u003e\u003c\/p\u003e In this charming pocket book, Anthony Ashton uses a Victorian device called a Harmonograph to tell the story of Harmony and the intervals in the scale. With useful appendices and exquisite line drawings this is a unique and original introduction to this magical subject.","brand":"Wooden Books","offers":[{"title":"Default Title","offer_id":47950109868221,"sku":"BS-TC0-178047","price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/9767\/2637\/files\/9781952178047-HD.jpg?v=1785997139","url":"https:\/\/boundigo.com\/products\/harmonograph-a-visual-guide-to-the-mathematics-of-music","provider":"Boundigo Bookstore","version":"1.0","type":"link"}