In addition, larger organs may use unison off couplers, which prevent the stops pulled in a particular division from sounding at their normal pitch. These can be used in combination with octave couplers to create innovative aural effects, and can also be used to rearrange the order of the manuals to make specific pieces easier to play.
in addition larger organs may use unison off couplers which prevent the stops pulled in a particular division from sounding at their normal pitch these can be used in combination with octave couplers to create innovative aural effects and can also be used to rearrange the order of the manuals to make specific pieces easier to play