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. It is one of the shortest of the ricercari, beautiful in its gentle flowing lines.
The recording was done on the sample set of the Bader-organ in the Walburgiskerk in Zutphen by Sonus Paradisi for Hauptwerk.
Anonymus, Ricercar quarti toni