<http://schema.org/headline>
"String Quartet No. 3 in F Major, Op. 73: V. Moderato by Fitzwilliam Quartet"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.songpop2.com/content/song/Fitzwilliam-Quartet_String-Quartet-No-3-in-F-Major-Op-73-V-M/PIl7d>