Ancient Ritual
Many Indian tribes of South America practiced a little known ritual..only recently discovered by archeologists.
It seems that in order to please their gods they would sacrifice a virgin once a year. They would do this by hanging her from a tree till death. However, rather than taking her down they would leave her hanging there until she would decompose.
When that time came they would all gather in a circle around her body and sing “Swing Low, Sweet Cherry-rot”..