A record was not planned at all: what was once the largest cathedral organ in the world is in Bavaria. The largest organ pipe is eleven meters high and weighs over 300 kilos.
The smallest whistles are only six millimeters long and the tones are around 16, which is at the upper limit of human hearing. The organ in St. Stephan Cathedral in Passau is still considered one of the largest church organs in the World. The two baroque pillar organs were transferred to the west gallery of the side aisles in the middle of the 19th century.