My professional musician friends tell me that, without hearing any words, this is sung in English; an anacrucis is required for the German text which does not occur here. An unaccompanied word is also to be heard in English on the Delibes piece from the set.
An EP taken from this set also claims that "Queen Of The Night" is sung in German.
ReviewThe first thing that will strike you when you listen to Florence Foster Jenkins is that none of the words are discernible. For this reason I have omitted the title details as to whether a song is being sung in German or English, which seems also to have defeated those printing the sleeve and labels, which disagree on these details.
The discerning listener may also notice some errors in temperament. I have to confess I do not rate her performances very highly, though Florence had, and continues to have, her admirers, and her nine recorded songs continue to sell steadily.
Der Hölle Rache (Queen of the Night aria) must be one of her better performances: