Play audio at backend

Dear Thomas,
A staff uploads an audio but not publish yet. Another person's job is to review the audio the publish it if appropriate. The approver wants to hear the audio but he has to make up a direct link on a new tab of browser, using the path shown in Files and Details, because the audio is not approved yet and not yet shown on front end.
Would you add a "Listen" button at the backend's File and Details tab so that the approver can listen what it sounds like before the audio is published?
Thanks for your attention.

Such a feature has been requested in the past and I added it to my list github.com/Bakual/SermonSpeaker/issues/7

However as you see there, it's there for a long time already. It's because it's not the simplest thing to do because it has some security implications.
On the other side, you can already do a preview of the whole sermon just fine if you use the ACL settings properly.
Users which are allowed to edit the state of a sermon (publish/unpublish/trash) or edit the sermon itself will see the sermon in the frontend even if unpublished. The sermon has then an "unpublished" label.
Taht should allow you to preview a sermon "in real" before publishing it.

Thank you.