There are some interesting comments about the song in the Google book on Berlin cabaret here (you can carry out a search within the book for Tamerlane on the site).

Eva Meier sang better versions of Seeräber Jenny and Lied der Jenny on that same show on NDR television in 1992. I have recordings somewhere. She's still performing. If the economy picks up and I manage to sell my house for a good price I'll think about inviting her over to Dublin for a show (not in my local pub, though).

Don