There's a lot of good information here, but can anyone suggest specific traditional songs that would be
a)suitable for my women's a capella chorus and
b)something that would be appreciated by Germans, should we visit the country next summer, as we hope to do

Why Germany? The local city of Keene, NH, has a partner city: Einbeck, Germany. There are local businesses eager to give us money to go (but we don't know if it will be enough money...)
Allison