Seems that most societies have hostile baby rocking songs. Songs to croon to your loved one at 3 AM. Rosalie Sorrels explains this nicely at Clicky.

All know "Rockabye Baby" (fall out of tree and DIE) and I used to sing
'Siembamba' to my little loved one. (But I also crooned Scottish murder ballads).

Can you cite/quote others in English or any other language?