The American, based in Germany, musician Daniel Kahn plays mostly klezmer music.
Here, on a cover of "Olaria Olara" from one of the most important modern Greek composers/musicians/songwriters/singers: Dionysis Savvopoulos:
If you love good jazz and are not aquainted with the "Three Blind Mice" record label, you're missing out on some of the best jazz recordings of all time. Not only is the sound quality way above average, but the artists are top notch. I know...who would think a bunch of Japanese could do good jazz? Don't kid yourself, these groups are great and most of their original stuff is wonderful. You can find lots more TBM albums and clips on the net if you look. Here's one l like.