{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Correct principles of classical singing; containing essays on choosing a teacher; the art of singing, et cetera; together with an interpretative key ... and Schubert's \"Die schöne müllerin,\"","author_name":"Max Heinrich","thumbnail_url":"https://www.ebooknetworking.net/books/117/624/big1176242199.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1176242199.html\">Correct principles of classical singing; containing essays on choosing a teacher; the art of singing, et cetera; together with an interpretative key ... and Schubert&#039;s &quot;Die schöne müllerin,&quot;</a>","width":400,"height":300}