Spotify’s ad-supported tier has long been one of the service’s differentiators. Naturally, the model’s not nearly as feature-rich as its paid counterpart, though the company’s removing one of
<a target="_blank" href="http://www.spotify.com">Spotify</a> is today adding a new feature to its <a target="_blank" href="https://itunes.apple.com/us/app/spotify/id324684580?mt=8">iOS app</a> that r