A very dark story about jealously, murder and a magical instrument being made out of the corpse! For me the song came first, this version I'm singing is different to any other I've come across, although this is a great link for some backstory:

https://www.atlasobscura.com/articles/how-2-sisters-and-1-murder-inspired-500-songs

I learned the version I'm singing from an old cassette tape recording from a library archive when I was researching women and folk songs 30 years ago. It has always been a favorite, although the melody I know is pretty repetitive, the magical and macabre hopefully keep your attention. I'd love to hear what you think.