Sietze de Vries demonstrates the 'Gedact' stop on the historic organ at Uttum, Ostfriesland

Sietze de Vries explores the 1710 Arp Schnitger organ at Weener, Ostfriesland

Sietze de Vries plays some jolly Praetorius on the Groningen Martinikerk organ

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Psalm 42 | Jacob Bijster | Goch (Sweelinq) ~ Kees van de Wege

Hinsz Orgel Petruskerk

I DISCOVERED A FOOT PUMPED ORGAN IN A DISUSED CHURCH!

Golden Coins Rain from Heaven Gold Glitter Shimmers VFX VJ DJ Motion Loop Visuals Background

Light Purple Screen (live 12-23-2019)

Jonsered Church - Part 6 - Sietze de Vries - Organ by Schiörlin 1783 - Organ Hunting in West Sweden

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Sietze de Vries demonstrates the 1781 Hinsz organ in the Martinikerk, Bolsward

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Residence Organ Project Stop Demonstration (17 Ranks Playable)

Saint-Savin organ, Sietze de Vries improvises on "Vierge de la montagne" (July 2017)

HEARTWARMING CHRISTMAS MUSIC from an English Village Church

Jelani Eddington at Carma Labs playing for the ATOS event on 7-7-2023

Sietze de Vries Musical Background and Improvisation Gramophone

1 Hour of Creepy Organ Music by Misanthropik - "Dawn of Dark Organ"

Sietze de Vries - Wer nur den lieben Gott lässt walten - Schnitger organ, Martinikerk, Hauptwerk