It was about a young girl who lived in the Hartz Mountains, and who had given up her life to save her lover's soul; and he died, and met her spirit in the air; and then, in the last verse, he jilted her spirit, and went on with another spirit - I'm not quite sure of the details, but it was something very sad, I know.
Parlava d’una fanciulla che abitava nelle montagne dell’Hartz, e che aveva dato la vita per salvare quella dell’innamorato: questi, poi, aveva incontrato lo spirito di lei in aria; quindi, nell’ultima strofa, egli respingeva lo spirito della fanciulla, e se ne andava con lo spirito d’un’altra.