{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"On Musical Duodenes, Or the Theory of Constructing Instruments with Fixed Tones in Just Or Practically Just Intonation","author_name":"Alexander John Ellis","thumbnail_url":"https://www.ebooknetworking.net/books/117/422/big1174229829.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1174229829.html\">On Musical Duodenes, Or the Theory of Constructing Instruments with Fixed Tones in Just Or Practically Just Intonation</a>","width":400,"height":300}