<http://schema.org/description>
"YouTube, as you know, has a huge collection of videos in its database. Any song which you want to download is likely to be found in YouTube. For song videos, you can select the quality of the video before downloading it. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.gizbot.com/how-to/how-to-download-youtube-songs-to-itunes.html>