The TimeKeeper is a cool new device that Spotify users around the world will probably enjoy—in the future. With over 150 3D printed parts, the TimeKeeper holds 1500 marbles. When a song for the future is released, based on the listener’s preferences, the marble coordinated with the tune passes through the machine. Created by Barcelona’s Domestic Data Streamers in connection with Spotify and BCN3D, the device took over 6,000 hours to make with ten BCN3D 3D printers at work. Read more at 3DPrint.com: http://3dprint.com/179040/spotify-3d-printed-timekeeper/