If you're into this kind of music, you could tell, sure. He begin playing one of the hardest to master solo violin pieces of the repertoire. If I saw someone pl

If you're into this kind of music, you could tell, sure. He begin playing one of the hardest to master solo violin pieces of the repertoire. If I saw someone playing Bach's Chaconne on the street, I'd stop right away. There's no way street musicians would be able to play it like he did. Well, about a thousand people passed by, and seven stopped to listen. 0.7% of the sample isn't that bad. Plus, he made 50 bucks in less than an hour.