Dagmar Krause is simply one of the best. I do like her earlier work with Slapp Happy, Henry Cow, and the Art Bears, but albums like Supply and Demand or Babble (a collaboration with Kevin Coyne) are more to my taste now.
This video is from 1984 according to the notes on youtube. I haven’t heard anyone perform a finer version of the song.
November 5 2010: I removed the link to the video because the YouTube user’s account was suspended….