"Down in the Willow Garden" and "Two Sisters" are two that are also very nice tunes. I was in an old-time and folk group and we found this to be a common subject. Many seem to warnings to young girls about pre-marital sex. "Two Sisters" is about jealousy. A sister gets a ring from a man they both love, so her sister pushes her in the river. A miller finds the corpse and makes a fiddle from her bones and a bow from her hair. And the only song that fiddle would play was "Oh the Wind and Rain". Amazing song.