Spotalike - Spotify playlist with similar songs, according to Last.fm
Spotify.me - Beautiful analytics on your Spotify listening habits 🎧
MusaicFM - An iTunes like screen saver based on Spotify and Last.fm
SpotMenu - Spotify and iTunes in your macOS menu bar
Bowtie - Bowtie is a desktop accessory that allows you to see and control your music (iTunes, Spotify...
Surface Studio - A brilliant screen for your ideas, from Microsoft