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

You can customize the appearance of your music player, its playlist and other settings from the SCM Music Player website, which generates code that you can add to your Tumblr blog's custom HTML page.

If you want to add music to your Tumblr blog, you can insert a music player that contains your custom playlist. Your playlist automatically includes all the audio you select, so your visitors have ...