No problem ! :D

About stacking, test this and tell me if it's what you want :'D it's faster for me to just edit it myself than to explain ahah sorry

<div align="right">
<div class="fixed-bottom">
<table style="width: 0%;"><tbody><tr><td style="width: 100%; text-align: center; background-color: transparent; border-color: transparent; border-style: double;">
<span style="color: rgb(204, 51, 255);opacity:0.30; text-shadow: 0px 0px  15px;"><strong>Song Title</strong></span><br>
<audio controls="" style="opacity:0.30; border-radius:40px; background: rgb(204, 51, 255); padding:2px; width:300px; height:35px;">
<source src="MP3LINK"></audio>
<p>
<span style="color: rgb(204, 51, 255);opacity:0.30; text-shadow: 0px 0px  15px;"><strong>Song Title</strong></span><br>
<audio controls="" style="opacity:0.30; border-radius:40px; background: rgb(204, 51, 255); padding:2px; width:300px; height:35px;">
<source src="MP3LINK"></audio>
</td></tr></tbody></table></div></div>