{"version":"1.0","provider_name":"Klaviano Blog","provider_url":"https:\/\/www.klaviano.com\/piano-blog","author_name":"Mathilde","author_url":"https:\/\/www.klaviano.com\/piano-blog\/author\/blogadmin","title":"Un double clavier du piano \u00e0 queue\u2026 de quoi s\u2019agit-il? - Klaviano Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"Xyjuco6cSh\"><a href=\"https:\/\/www.klaviano.com\/piano-blog\/fr\/un-double-clavier-du-piano-a-queue.html\">Un double clavier du piano \u00e0 queue\u2026 de quoi s\u2019agit-il?<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.klaviano.com\/piano-blog\/fr\/un-double-clavier-du-piano-a-queue.html\/embed#?secret=Xyjuco6cSh\" width=\"600\" height=\"338\" title=\"&#8222;Un double clavier du piano \u00e0 queue\u2026 de quoi s\u2019agit-il?&#8221; &#8212; Klaviano Blog\" data-secret=\"Xyjuco6cSh\" 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:\/\/www.klaviano.com\/piano-blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/www.klaviano.com\/piano-blog\/wp-content\/uploads\/2021\/01\/double-keyboard-2.jpg","thumbnail_width":1600,"thumbnail_height":1067,"description":"Avez-vous d\u00e9j\u00e0 entendu parler d&#8217;un piano \u00e0 queue avec un double clavier? Souhaitez-vous savoir pour quelle raison un tel instrument a \u00e9t\u00e9 cr\u00e9\u00e9? Nous expliquons&nbsp; Le syst\u00e8me a \u00e9t\u00e9 invent\u00e9 par Emanuel Moor dans les ann\u00e9es 20 et 30 du si\u00e8cle dernier. Dans un instrument de ce type, les fragments &hellip;"}