Another one of the pieces from the organbook of Matthias Rottenau (Mus. Ms. 40615 from the Staatsbibliothek zu Berlin) that is probably possibly perhaps a Ricercar. The manuscript contains, I think, some errors in this piece. Unlikely dissonants that are more likely caused by a transcription error than that they are intentional. As usual I indicate these editorial choices in the score, so anyone can choose to play the notes as they are in the manuscript, or as they are in my edition.
The recording was done on the sample set of the Bader-organ in the Walburgiskerk in Zutphen by Sonus Paradisi for Hauptwerk.
Anonymus, Ricercar primi toni