Score available here: http://partitura.org/index.php/georg-wilhelm-saxer-praeludium-und-fuge-b-dur
Besides the works attributed to a composer, the Leipziger manuscript with signature Becker II.2.51 preserves two preludes and fugues and two fugues without a named composer. The preludes are in the North German style and the four fugues share strong similarities with the three fugues that do bear the name of Georg Wilhelm Saxer. The counterpoint is not really sophisticated and musical development is mostly absent. The fugues consist of several (2, 3 or 4) expositions in a row with hardly any episodic material between them. It is a reasonable supposition these works were composed by Saxer as well.
The first of the wordk is the Prelude and in Fugue in B flat major. The prelude is a joyfull piece in the typical stylus phantisticus, with some daring harmonies (bar 34). It is followed by a stately, solemn fugue.
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).`