Johann Paul Geycke (1726 – 1804 in Hamburg) was a Hamburg organ builder of the 18th century.
Geycke ran his own workshop in Hamburg. Georg Wilhelm Wilhelmy (1748–1806) was his journeyman. From 1765 onwards, Geycke succeeded in persuading the itzehoer organ builder Johann Daniel Busch (1735–1787) from Hamburg.Gustav Fock: Arp Schnitger und seine Schule, page 180
His son Joachim Wilhelm Geycke (1768–1840) continued his father's workshop. His grandson was the Hamburg organ builder Christian Heinrich Wolfsteller (1830–1897), his son-in-law the organ builder Balthasar Wohlien (1745–1804) from the well-known Altonaer family of organ builders.Gustav Fock: Arp Schnitger und seine Schule, page 36
Work Year Location Building Picture Manual Stops Notes1752KirchwerderSt. SeveriniII/PRepair of the organ by Hinrich Speter (1641) 1763 Eppendorf Sankt Johannis Repair and take over maintenance.Gustav Fock: Arp Schnitger und seine Schule, page 70 1765–76 / 1780 Hamm Dreifaltigkeitskirche Maintenance of the organ from 1765 to 1776, in 1780 estimate for repair, then repair and renewal of some of the stops.Gustav Fock: Arp Schnitger und seine Schule, page 68 1766/70–72 Borstel (Jork) Sankt Nikolai II/P 20 1766 Repairs: bellows, ducts, windchests, action, musical keyboards, tremulant and reeds are repaired. In 1770–72, the organ was completely rebuilt and moved to the west gallery; in addition, the organ received a new casing, two additional bellows, new channels, two new pedal chests, a new action, a new 16' Trombone and 8' Octave in the pedal were installed; the Cornet 2' (ped) is changed to the Trumpet 4'; the Principal 8' in the HW is foiled and the BW doors receive foiled blind pipes; all works receive a valve and the Zimbelsterns are installed in the bass towers.Martin Böcker: Borstel – Sankt Nikolai and Gustav Fock: Arp Schnitger und seine Schule, page 29 1768 Hamburg-Altstadt Sankt Petri Repair.Gustav Fock: Arp Schnitger und seine Schule, page 67 1768 St. Pauli Pesthofkirche, Annenstraße New building.Organ Institute quarterly. Nr. 5/6, 1955, (Numerized) 1774–75 Hamburg-Altstadt Sankt Jacobi IV/P 60 Repair and installation of a new console with four manuals.Thomas Lipski: Hans Henny Jahnns Einfluss auf den Orgelbau. Olms, Wiesbaden 1997, , (Digitalisat) → Schnitger organ (Hamburg) 1777/1796 Altona Sankt Trinitatis Repair.Gustav Fock: Arp Schnitger und seine Schule, page 66
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Further reading
External links Foto des von Geycke gebauten Spieltisches in der Hauptkirche Sankt Jacobi