Editing Pedal keyboard (section)

===Keyboards===

Pedalboards range in size from 13 notes on small spinet organs designed for in-home use (an octave, conventionally [[Scientific pitch notation|C<sub>2</sub>]]–C<sub>3</sub>) to 42 notes (three and a half octaves, G<sub>1</sub>–C<sub>5</sub>) on church or concert organs. Modern pipe organs typically have 30- or 32-note pedalboards, while some electronic organs and many older pipe organs have 25-note pedalboards.

Besides the number of pedals, the two main identifying aspects of a pedalboard are:
#whether all the pedals are at the same height relative to the floor ("flat"), or whether the pedals in the middle are lower than those on the outer edges, forming a curved-in shape ("concave"), and
#whether all the pedals are completely parallel to each other ("parallel"), or whether the pedals are closer together at the far end than at the end closest to the organ console ("radiating"). Specifications vary by country, organ builder, era, and individual tastes.

Exact design specifications for pedalboards are published in [[Great Britain]] by the [[Royal College of Organists|RCO]], in the [[United States]] by the [[American Guild of Organists|AGO]] (which requires a design similar to the RCO's), and in [[Germany]] by the [[Bund Deutscher Orgelbaumeister|BDO]] (which allows both 30- and 32-note pedalboards, of both concave/radiating and concave/parallel varieties).

<gallery>
Image:Pedalierago.jpg|AGO-spec.: concave/radiating
Image:Pedalierbdo1.jpg|BDO-spec.: concave/parallel
Image:Pedalierbdo2.jpg|BDO-spec.: concave/radiating
Image:Bdopedalrear.JPG|30-note BDO Standard (concave/parallel) pedalboard.
Image:Bdopedalabove.JPG|30-note BDO Standard (concave/parallel) pedalboard.
Image:Bdopedalsideangle.JPG|30-note BDO Standard (concave/parallel) pedalboard.
Image:mypedalboard.jpg|25-note flat/radiating pedalboard on an electro-mechanical Wurlitzer organ.
File:VarnaOrganPedal.JPG|A different style of pedalboard, as used in a Jens Steinhoff organ in Varna, Bulgaria
File:St James the Great St Kilda East Joscelyne Organ Pedal Board.jpg| An unusual octave arrangement of G2-G3 dating from the 1860s by Samuel Joscelyne 
</gallery>