The source for this publication is a handwritten copy by August Wilhelm Bach of 6 preludes and fugues composed by Ernst Friedrich Richter. Though only one of the others has an opus number, this prelude and fugue was published in 1862 the “Jubel-Album für die Orgel” (as was pointed out by Daniele Calorio in the comments below).
Richter’s Prelude and Fuge in E major is a lyrical work. The prelude is build on a subtle play between two slightly differently registered manuals. The fugue theme gives rise to a piece with long flowing lines, that gradually builds up to a long held chord. After that the piece ends with just a few subdued bars. Interestingly, the Jubal Album does not indicate the manual changes in the Prelude that Bach’s manuscript does. Were they left out or are they Bach’s invention?
The recording was done with the Hauptwerk software and the sampleset, made by Voxus, of the Stahlhuth/Jahn organ in the St. Martin’s church, Dudelange.