{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"KEYBOARD CONNECTIONS: Proportion and temperament in music and architecture. Equal temperament, the golden section and a few other mysteries","author_name":"Anthony Osborne","thumbnail_url":"https://www.ebooknetworking.net/books/142/084/big142084783X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-142084783X.html\">KEYBOARD CONNECTIONS: Proportion and temperament in music and architecture. Equal temperament, the golden section and a few other mysteries</a>","width":400,"height":300}