The songs on this recording rangs from simple numbers like " Glück auf!" (the miners call of good luck) and " Der Mond ist aufgegangen" (the moon has risen) to variant forms with astringent harmonies, like Max Reger's " Bald gras ich am Neckar". The artful polyphony of " Es geht ein dunkle Wolk" in the setting by Hugo Distler and in Ludwig Senff's "Entlaubet ist der Walde" also shows how fruitfully composers of various periods have engaged themselves with folk songs. Beautifully sung, well recorded, all a cappella.