Hi, I'm not sure what you mean by folk-style in this context. I would guess (if it's worth anything -- I'm no expert, please) that you'd be pressed to find something that sounds like untutored village singer amateurs in an unmediated oral tradition (if you follow what I mean), since the song was brought to attention as a presentational, stage song. Nor, my impression, do Chinese tend to favor the same aesthetic of "authenticity" that we might see in the revival performances of English folk material. To make matters worse, "minority ethnic groups" tend to be treated like Disneyland characters.

I guess this is the "original" recording:
https://youtu.be/stkM6w61oAw

In case it could be helpful, I did the search on YouTube with the Chinese character, on the rationale that it might turn up richer results than the Roman character. Here are the results:
https://www.youtube.com/results?search_query=????

That's probably not very helpful, and if I've said anything correct it may be what you already know, so I apologize in advance. Good luck!