keyboards played by the hands are known as "manuals" (from the latin "", meaning "hand"). the keyboard played by the feet is a "pedalboard". every organ has at least one manual (most have two or more), and most have a pedalboard. each keyboard is named for a particular division of the organ (a group of ranks) and generally controls only the stops from that division. the range of the keyboards has varied widely across time and between countries. most current specifications call for two or more manuals with sixty-one notes (five octaves, from c to c″″) and a pedalboard with thirty or thirty-two notes (two and a half octaves, from c to f′ or g′).