Welcome to my short demonstration of the Hauptwerk Martinikerk Groningen sample set by Sonus Paradisi! In my personal opinion this is perhaps the most astonishing sample set that I've ever played.
Over the centuries quite a few organ builders worked on this instrument - Master Hermannus in 1450, Master Johan then Damme from Appingedam in 1482, Andreas de Mare in 1564, Anthoni and Adam Verbeeck in 1627/28, Jan Helmann in 1685-1690, Arp Schnitger in 1691/92, Franz Caspar Schnitger in 1728, Master Albert Anthony Hinsz in 1730/39/40, Lohman and later Van Oeckelen in 1816/31/54/55), Jürgen Ahrend and Cornelis H. Edskes in 1976/77 and 1983/84. The organ now consists of 53 speaking stops over 3 manuals and pedals (extended to 54 in the sample set).
I'm going to demonstrate most important stops and their combinations by performing Präludium and Chaconne in D by Christoph Wolfgang Druckenmüller from Das Husumer Orgelbuch von 1758. This collection is the most important source of North German organ music after Dieterich Buxtehude. Among other things it proofs that original organ concertos of high artistic quality were played in North Germany in the 18th century.
I'd like to thank @Ralph Looij who recommended this collection to Vidas and that's how it came to my attention.