or
jasmin in buffalo's waste (ok it's bluntly translated) or more precisely, as the vnmese goes: "playing [music] for a water buffalo] ie. the buffalo doesn't listen/ don't understand.
but really, a lot of people just don't appreciate classical music. the fact that a bunch of people praise those masterpieces for thousand of years doesn't mean that everybody will be moved by it. when i hear a beautiful piece, i can be moved to tears. i'd feel happy for the whole day. but the same piece that would make me happy the whole day would annoy the hell out of my grandmother. interestingly, as though to prove my point, the two persons stopping, listening and really appreciating play violin themselves.
this story reminds me a lot of the story of Boya and Ziqi. the story was told in the Warring States Period (475-221 B.C.) Boya, a high state official, was a very talented musician playing guqin (some kind of a harp/ lyre), but people didn't understand his music. by chance he met Ziqi, a woodman, who could understood his music well. they became soul mate. when Boya learned about Ziqi death, he broke his instrument because there was no one left in the world that he could play for.
what's the moral of the story? the west is wayyy behind ;-)