The Tibia Clausa is arguably the most important rank of pipes in a theatre pipe organ, with some organs having as many as 5. The stop shares similarities with the Bourdon and the Gedackt found in some church pipe organs.
The Tibia Clausa is a crucial type of pipe within a theatre pipe organ, sometimes appearing in as many as five different ranks. It resembles both the Bourdon and Gedackt pipes found in some church pipe organs.