Commisioned by duke Heinrich Julius of Braunschweig-Lüneburg the organ with wooden pipes of Frederiksborg castle was the result of the artistic cooperation between Esaias Compenius, the organ and instrument builder to the court of Wolfenbüttel, and the kapellmeister Michael Praetorius. Four hundred years later this recording celebrates the rediscovery by these outstanding personalities of this universal masterpiece.