HTML Code in a Post for a Music Player in Blogger. If you want to embed an MP3 audio file into a Blogger post, you can insert your HTML code for the music player.

Just insert a snippet of HTML code into one of your blog posts to add a full-featured audio player. You can play sales presentations, product descriptions or any other audio content desired.

Plex is using the feature for its music player side project for the time being, not its main media player app.