1.0U-TRAINER-SHOPhttps://u-trainer.info/en/rich600338<blockquote class="wp-embedded-content" data-secret="YFYApat6L5"><a href="https://u-trainer.info/en/">START</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://u-trainer.info/en/embed/#?secret=YFYApat6L5" width="600" height="338" title="“START” — U-TRAINER-SHOP" data-secret="YFYApat6L5" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !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); //# sourceURL=https://u-trainer.info/wp-includes/js/wp-embed.min.js /* ]]> */ </script> Successfully playing a brass instrument requires a correlation between lip tensity and the tubing length of each brass instrument. The lip tensity is dependent on embouchutre muscles reacting to the flowing air in the mouthpiece and triggering vibrations. The U-Trainer®-Set was designed to improve these fundamental muscular demands.https://u-trainer.info/wp-content/uploads/2017/05/case-offen-klein-1.jpg494600