Kauffmann prescribes a Gemshorn 8’ and a Flöte for this prelude. Since no Gemshorn is available on the sample set of Steinkirchen I use the Rorhflöt of the Hauptwerk and the Gedackt of the Brustwerk. Makes it a kind of 'jeux des flûtes'. The pedal part is played on the Principal 16' alone. It has enough overtones to make it usable on itself, I think.