<http://schema.org/description>
"If you're game for a song, Twitter may sound like an odd place to stretch your vocal chords but Bubbly -- a 'Twitter for voice' type service -- is proving to be a popular destination ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/asia/2012/09/10/hitting-high-notes-27-messages-bubbly-aka-twitter-voice-sung/>