This Poem/Song Came Off the Top of My Head

The music played with the girl's song
She sang and sang the whole night long
People came in and joined the song
They sang and sang along.
Her beautiful voice was all the noise
Needed to calm the girls and boys
Soon it was time to go to bed
And in the morning everyone was dead!
The people died because of the song
And because they sang along
The babies died because of the noise
The same can be said for the girls and the boys.
A stranger left during the night
He packed his bags and then took flight
In the morning the girl was dead
For the stranger had chopped off her head!
The girl was really a witch
The stranger threw her head in the ditch
In the morning she was dead
And she could not get out of bed!
The song was really a magic spell
That made people not feel so well
And when they went to bed
Very soon they would be dead.
The stranger's name was Jacob Nell
He warned people about the spell
When they didn't listen he took a fright
That is why he left during the night!