Replayify - Create playlists from your most played Spotify tracks
Bowtie - Bowtie is a desktop accessory that allows you to see and control your music (iTunes, Spotify...
Muzzy - it’s a tiny and gorgeous iTunes companion that lives on your menu bar. For Mac OSX, its free!
Tiny Mix - NPR Tiny Desk — mixed up, one song at a time.
Owlead - Grow your Twitter with valuable followers, effortless
Skip Tunes - Control iTunes, Spotify, or Rdio from your Mac's menubar