The prelude to "Wer nur den lieben Gott lässt walten" is already the third of the 7 choral preludes by Kirchhoff's hand I intend to publish. Kirchhoff gave it the form of an organ Trio with the choral melody as bass melody. It is a bit surprising how simple and straigthforward the piece is written. There is no ingenious counterpoint or complicated harmonic progressions to be found, just a three part texture that does it's job as choral prelude very nicely.
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).