Not necessarily lullabies, but Blind Melon's second album, Soup, had several songs that could be considered dark or disturbing. For anyone who has not listened to the album, please do so. I highly recommend it! They are not the group everyone knows from "No Rain".
Car Seat ( God's Presents) - about Susan Smith, a lady who killed her kids by driving her car into a lake
Tongue tied, nerves as big as boulders
Why Mom, I thought I was your soldier
My brother sits by me
Buckled into the carseat
Feel the thirst, it's time for pulling over
Into the truckstop on my daddy's shoulder
Out back where they plant all the trees
ten feet away my daddy buries me
http://www.youtube.com/watch?v=ypaDyFYII1c Skinned - about serial killer Ed Gein
I'll make a shoehorn outta your shin
I'll make a lampshade of durable skin
And oh, don't you know that I'm always feelin' able
When I'm sittin' home and I'm carving out your navel
im just a sittin' here carving out your navel
When will I realize that this skin I'm in
Hey, it isn't mine
And when will the kill be too much meat for me to hide on
..... (snip)....
http://www.youtube.com/watch?v=lCHd3VCu47M Anyway, that's probably my last post in here. Good luck to us all and thanks again, Titanium!