Hello Moshe,
I know a few Yiddish folk songs, but I must request that you find a decent recording to which you can link us (or as a last resort, strum it out here
http://www.google.com/logos/2011/lespaul.html and send us the link it generates). I could only find a home video on Youtube which wasn't much use for discerning pitch.
Does [סורל] mean "corrupt"? Is that even the proper transliteration? Is the musical basis "classical" in the broadest sense (see:
viewtopic.php?f=1&t=44)? I think I have more questions than you do!
Woe is me,
Nathan
Post Scriptum: Moshe [ben-Avraham] is my brother's Hebrew name. Nachman is mine.