Make album art, artist and song name appear in browser's notification tray music player

I don't know what I can do to make an album art, artist and song name appear in the notification tray for browsers. Without setting the target for MP3 files, you get "ZeroNet," the site's favicon, URL and name. I took a screenshot to show what I mean:

http://127.0.0.1:43110/Me.ZeroNetwork.bit/?Post/1oranGeS2xsKZ4jVsu9SVttzgkYXu4k9v/16NS3rBdW9zpLmLSQoD8nLTtNVsRFtVBhd/1573438368

Is there no other way to do this than to create one site per album with the site name and favicon being of the album?

I won't mind if the site name is still included in there somewhere, but I want the song metadata first and foremost to be displayed in the notification.

No files, tests, or entry points are named. Start by locating the browser audio and notification handling, then review the browser media-session or notification metadata support relevant to MP3 playback. Done means the browser music player shows the album art, artist, and song name instead of only ZeroNet site metadata.

Written by the indexing model from the issue text.