When I found this tune a few months back, I was told it was Catalan. Thanks to our own Felix Castro, I now know it began life as a Klezmer tune.
It's a simple melody, but there's so much you can do with it, and I'm looking forward to hearing a lot of different interpretations from creative c.netters..
Here's the recording that first attracted me to this lovely tune:
Thanks to Felix, here's a link to notation that cites the origin of the tune:
And attached is a GIF (sorry, couldn't find a PDF) of the version I learned; bonus points if you multi-track the parts or play with a friend!
Have at it, and have fun!