<http://schema.org/description>
"Spotify's deep integration with Facebook last month may have made music more social, but after it transpired that it would be made mandatory for new users to the music-streaming service ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/eu/2011/10/26/spotify-previews-new-android-app-adds-facebook-sign-in-and-sharing/>