A class of keyboard instrument characterized by various sounds of unlimited sustain. The earliest common organs were [[pipe organ]]s built for churches. Their sound came from pressurized air moving through specially formed metal pipes. Pipe organs are still in use in many Western churches and concert halls worldwide.

The [[pump organ]] (see post #657165) is a small pipe organ conceived for home use. The air in this instrument is generated by foot-pedal bellows, which one pumps with alternating feet.

There are also [[electric organ]]s (such as found at post #519301) whose sounds are generated through circuits. The Hammond B3 is arguably the most famous of this type, widely used in jazz, blues and rock music.

A prominent feature of most types of organs is the existence of at least two manuals (keyboard sets; with a light, spring-weighted action unlike that of a piano), a pedalboard, and a number of "stops" or switches which activate different sets of pipes for varied color.

*Not to be confused with biological [[organs]].*

h4. See also

* [[Tag Group:Audio Tags]]
オルガン パイプオルガン