Spotify Mini is a desktop Spotify player with a minimalistic interface that can display minor details about the song and artist.
You are given an extremely simple UI that can help control playback for those users that do not have access to a multimedia-type keyboard. It should be noted that you do need to already have Spotify installed before attempting to use Spotify Mini since it they work in concert. Spotify Mini pulls track details over so that you can manage them from the app's window. It will display album, album art, artist, and title as well as allowing you skip tracks and to either pause/resume the playback.
Spotify Mini can be a useful albeit simple desktop Spotify playback tool and its small size takes up very little space - and it's free.