<http://schema.org/description>
"Digital music subscription service Rdio has increased its music catalog to over 18 million songs thanks to what it calls 'landmark' deals with indie music sellers CD Baby and TuneCore, ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/insider/2012/08/16/spotify-rival-rdio-inks-landmark-deals-cd-baby-tunecore-now-serves-18-million-songs/>