{"version":"1.0","provider_name":"PianoNotes Online","provider_url":"https:\/\/pianonotes.piano4u.com","title":"QRS Player Systems - PianoNotes Online","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"2KIvGIuH3b\"><a href=\"https:\/\/pianonotes.piano4u.com\/index.php\/2014\/05\/player-systems\/\">QRS Player Systems<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/pianonotes.piano4u.com\/index.php\/2014\/05\/player-systems\/embed\/#?secret=2KIvGIuH3b\" width=\"600\" height=\"338\" title=\"&#8220;QRS Player Systems&#8221; &#8212; PianoNotes Online\" data-secret=\"2KIvGIuH3b\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/pianonotes.piano4u.com\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/pianonotes.piano4u.com\/wp-content\/uploads\/2014\/05\/QRSLogo.jpg","thumbnail_width":397,"thumbnail_height":397,"description":"QRS was founded in 1900 by Melville Clark (of Story &amp; Clark piano fame) who developed the player piano as we know it today. QRS supplied music rolls to the player piano market, with production peaking in 1927, when QRS Music Company sold 10 million rolls. &nbsp; The player piano&#8221;s heyday lasted from 1900 until the Great Depression in the 1930s. The poverty of the Great Depression, along with the [&hellip;]"}