eonpatapon/gnome-shell-extensions-mediaplayer — pull request #66 by flatzo (2012-05-01 18:18:21+00:00)
Title: User rating

Add under "from " the rating of the song on a 5 star range. From what I saw, it works great with both Banshee and Rhythmbox.

Not sure if it's a feature you'd like to merge as Metadatas are read-only on MPRIS, though it's still some good information added and eventually, if MPRIS evolved and permit to write rating, it would be a good starting point.