Audio posts simply show up with that big-ass play button. That is absolutely not helpful when trying to tag them, or even identify them.
Add the “Mega-Editor” to the list of features Tumblr has rolled-out before they are ready for prime time.
I don’t care if you tell us it’s only beta. Next time I think it’d be best if you keep a new feature in a true beta environment, and then roll out a full-featured version 1.0, rather than force your entire user base to act as beta testers.
[EDIT]: This was my mistake. It works as advertised. My apologies.