Origins 

I think it should be pointed out in the article that Klezmer is "influenced" and heavily borrowed from Balkan and other music of that region of our planet. 

If you were to watch an older Ukrainian or Moldovan or Bulgarian movie, you'd think the background music is Klezmer... Incidentally, like with so many other things Jewish - The Israeli national anthem isn't "Jewish" at all, but an old Italian song, if I'm not mistaken, with Hebrew lyrics. Btw, Hebrew is an artificially revived language. Up until last century it was like Latin - a dead language, used only in religion (which needs to die too). And then it was artificially resuscitated by Zionists. Which is funny, because the founders of teh modern state of Israel were atheists, it's a shame what they have done, giving a bad name to all atheists.