Conky-Spotify shows current Spotify track in Conky (title, artist, album, cover...).
To install Conky-Spotify:
wget -O conky-spotify https://codeload.github.com/Madh93/conky-spotify/zip/master
unzip conky-spotify
mv conky-spotify-master ~/.conky/conky-spotify
This project is licensed under the GNU GPL v3 license.