See the term wind chest

1. Sight separations are made before notes in this style of playing. The organist decides the length of the separation and which notes to separate. An entire technique has evolved around this principl [..]

The moment at which the pipe begins to speak

Pipes that have a clear edge to the sound are often described as having "chiff." Any kind of pipe can have chiff but principals almost always have this clear attack point

An electrical connection which, when charged, it magnetizes a piece of metal. This circuit is involved in the mechanism which opens the valves to allow pipes to speak in an electric action instrument

The type of mechanism which controls the work of the pistons

The unit that contains everything the organist needs to control the sound such as the manuals

A coupler allows one division to be connected to another. This allows the stops of two divisions to be controlled by one manual or the pedals. For example, the Swell to Great coupler allows the Great [..]

The pipes are grouped into several separate sections called divisions. Each one has a name and is controlled through it's own manual or the pedalboard. There are several manual divisions and the [..]

In an electric key action, a wire, an electrical circuit