Just listened to an old cd by Teresa Stratas. Lenya, of course, is my favorite, but Stratas comes close, surpassing Lemper on some songs that need to be sung softly and slowly. Youkali is one.

Her disc, "The Unknown Kurt Weill," has some seldom heard songs.

Nanna's Lied
Complainte de la Seine
Klops-Lied (Meatball song)
Berlin im Licht
Und was bekam des Soldaten Weib?
Die Muschel von Margate (Petroleum song)
Wie Lange Noch?
Das Abschiedbrief
Es Regnet
Buddy on the Night Shift (Propaganda songs no. 5)
Je ne t'aime pas
Lied von der braunen Inseln (Petroleum Song)
Youkali, tango habañera

Mudcat has very few of Weill's songs. His Paris songs get little mention, except for Youkali (Roger Fernay and Kurt Weill).