Bach’s prelude to “Der Herr ist mein getreuer Hirt” is a small fugue on the first phrase of the melody. This phrase appears at least 7 times, though I think that Neumeister forgot two crucial notes in bar 17. As is so often the case in Neumeister’s transcriptions a voice (in this case the alto voice) disappears for a halve measure, and reappears in the next bar. With a g and a d filled in, the alto voice suddenly becomes the eighth entry of the fugato theme. The piece can be played both pedaliter and manualiter, so I created two scores.
The recording was done on the demo sample set of the organ of the Holy Trinity church in Smecno by Sonus Paradisi for Hauptwerk.
Bach, Der Herr ist mein getreuer Hirt