This chorale is perhaps the gravest of a generally sober set of pieces.
I've registered with Fonds 16,8,4 Hauptwerk and Oberwerk coupled, seasoned with the Hauptwerk Gemshorn Quint. Pedal with 32'. Reducing to the Positive Flute Allemande and building back up to the starting registration.
The other Chorales I'm adding to the playlist below as I go.