"There [is] also a very nice set of recordings of the Eisler collaborations by Dagmar Krause (of Slapp Happy/Henry Cow fame)."
Yes. If you have in mind the same CD I do, I think it's excellent. _Supply & Demand: Songs by Brecht/Weill & Eisler_ (BOS1CD)
It has one of the best versions of "Barbara-Song" from _Three Penny Opera_ that I've ever heard.