<http://schema.org/description>
"Shazam, the music discovery and tagging service, has rolled out an update to its iOS app that means whenever you tweet a song you've tagged to your followers, they'll be able to play ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2013/09/02/shazam-for-ios-now-lets-your-twitter-followers-preview-songs-in-tweet-when-you-share-a-tagged-song/>