Kauffmann’s second prelude to the melody of chorale “Valet wil ich dir geben” is again a piece with an unusual registration prescription. No indication however which hand should play on which manual. Perhaps Kauffmann meant it the other way around than I as play it.
The recording was done with the Hauptwerk software and the sampleset, made by Voxus, of the Müller organ in the Sint Bavokerk, Haarlem (http://www.voxusorgans.com/en/product/haarlem).
Score available here: http://partitura.org/index.php/georg-friedrich-kauffmann-valet-will-ich-dir-geben-alio-modo