i can see that WYSIWYG was used sometime during edits which breaks the music coding ^^;

delete the <span>'s and the music should be working alright!

<div class="w-100" style="position:absolute;top:490px;right:0;height:49px;overflow:hidden;">
<span class="fr-video fr-fvc fr-dvi fr-draggable">
<iframe class="w-100" frameborder="0" src="https://www.youtube.com/embed/s7-GTShjcqY?controls=0" style="position:absolute;top:-125px;left:0;height:300px;opacity:.001;"> </iframe>
</span>
</div>