The ACTION of an instrument plucked by hand is the distance between the fingerboard and the string . In keyboard instruments, the action is the mechanism that translates the motion of the keys into the creation of sound (by plucking or striking the strings).
* 1 Keyboard instruments
* 2 Instruments plucked by hand
* 2.1 Adjusting the action
* 3 References
In a harpsichord , the main part of the action is a jack, a vertical
strip of wood seated on the far end of the key. At the top of the jack
is mounted a hinged tongue bearing a plectrum . When the key is
pressed and the jack rises, the plectrum plucks the string. When the
key is released and the jack falls back down, the tongue permits the
plectrum to retract slightly, so that it can return to its rest
position without getting stuck or plucking the string again on the way
down. The jack also bears a damper, whose purpose is to stop the
vibration of the string when the key is released. For full description
and diagrams, see
In a piano , the action is a mechanical device, made mostly of
hardwoods, that serves several purposes. By means of various levers,
it permits a small motion of the key to be translated into a large
motion of the hammers that strike the strings. The action also permits
a hammer to recoil from the string instantly so as not to damp its
vibration, and it also prevents the hammer from bouncing up and down,
striking the string multiple times.
INSTRUMENTS PLUCKED BY HAND
Ibanez RG 770 guitar action
In the guitar and similar instruments, the action is the distance between the fingerboard and the string , which determines how easy it is to sound notes when pressure is applied with the fingertips. Generally a low action is considered to be more playable, due to the lower amount of pressure needed to press the string to the fingerboard. However, if the action is set too low, there is a danger that the vibrating string will strike the frets or fingerboard below it, creating an unwanted buzzing noise (on fretted instruments , this is known as fret buzz ). Conversely, if the action is too high, then the strings may be too taut to fully depress.
ADJUSTING THE ACTION
On some instruments, such as certain guitars , the action can be
adjusted by tightening screws at the bridge , which changes the height
of the strings.
The action on a guitar is also slightly affected by the adjustment of the truss rod . Tightening the truss rod gives the neck a backward bow and tends to lower the action, and loosening the rod gives the neck a forward bow, giving a higher action.
Action on a guitar is usually measured at the 12th fret. It is recommended that the action on an electric guitar should be 1/16" (1.6mm) on the high E string and 3/32" (2.4mm) on the low E string when in standard tuning using standard gauge strings.
Ideally a straight neck works the best for guitar action, but in some cases it is better to have a slight forward bow or relief in the guitar neck. The neck straightness can be adjusted by tightening and loosening the truss rod.
Adjustment of the action should be done using all the aforementioned truss adjustments, in addition to modifying or adjusting any elements on the bridge of the guitar.
* ^ http://blog.zzounds.com/2017/07/11/setting-the-action-on-your-acoustic-guitar/ * ^ "Adjust Electric Guitar