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Tuning mechanisms for stringed instruments
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Tuning mechanisms for stringed instruments
A variety of methods are used to tune different stringed instruments. Most change the pitch produced when the string is played by adjusting the tension of the strings.
A tuning peg in a pegbox is perhaps the most common system. A peg has a grip or knob on it to allow it to be turned. A tuning pin is a tuning peg with a detachable grip, called a tuning lever. The socket on the tuning lever fits over the pin and allows it to be turned. Tuning pins are used on instruments where there is no space for a knob on each string, such as pianos and harps.
Turning the peg or pin tightens or loosens the string. Some tuning pegs and pins are tapered, some threaded. Some tuning pegs are ornamented with shell, metal, or plastic inlays, beads (pips) or rings.
Other tuning systems include screw-and-lever tuners, geared tuners, and the konso friction tuning system (using braided leather rings).
A pegbox is the part of certain stringed musical instruments (the violin family: violin, viola, cello, double bass) that houses the tuning pegs. The corresponding part of the lute family (including guitar, mandolin, banjo, ukulele) is called the headstock.
A tapered peg is simply a smooth peg with a string wound around it. The tension of the string is controlled by turning the peg, and the peg is held in place by friction in its hole (in contrast to tuning machines, below).
A properly working peg will turn easily and hold reliably, that is, it will neither stick nor slip. Modern pegs for violin and viola have conical shafts, turned to a 1:30 taper, changing in diameter by 1 mm over a distance of 30 mm. Modern cello pegs have a slightly more aggressive 1:25 taper. 19th century and earlier pegs, for use with stretchier gut strings, typically had an even steeper taper of 1:20.
The taper allows the peg to turn more easily when pulled out slightly, and to hold firmly when pushed in while being turned. Since the typical wear pattern on a peg shaft interferes with this action, pegs occasionally require refitting, a specialized job which amounts to reshaping both pegs and holes to a smooth circular conical taper.
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Tuning mechanisms for stringed instruments
A variety of methods are used to tune different stringed instruments. Most change the pitch produced when the string is played by adjusting the tension of the strings.
A tuning peg in a pegbox is perhaps the most common system. A peg has a grip or knob on it to allow it to be turned. A tuning pin is a tuning peg with a detachable grip, called a tuning lever. The socket on the tuning lever fits over the pin and allows it to be turned. Tuning pins are used on instruments where there is no space for a knob on each string, such as pianos and harps.
Turning the peg or pin tightens or loosens the string. Some tuning pegs and pins are tapered, some threaded. Some tuning pegs are ornamented with shell, metal, or plastic inlays, beads (pips) or rings.
Other tuning systems include screw-and-lever tuners, geared tuners, and the konso friction tuning system (using braided leather rings).
A pegbox is the part of certain stringed musical instruments (the violin family: violin, viola, cello, double bass) that houses the tuning pegs. The corresponding part of the lute family (including guitar, mandolin, banjo, ukulele) is called the headstock.
A tapered peg is simply a smooth peg with a string wound around it. The tension of the string is controlled by turning the peg, and the peg is held in place by friction in its hole (in contrast to tuning machines, below).
A properly working peg will turn easily and hold reliably, that is, it will neither stick nor slip. Modern pegs for violin and viola have conical shafts, turned to a 1:30 taper, changing in diameter by 1 mm over a distance of 30 mm. Modern cello pegs have a slightly more aggressive 1:25 taper. 19th century and earlier pegs, for use with stretchier gut strings, typically had an even steeper taper of 1:20.
The taper allows the peg to turn more easily when pulled out slightly, and to hold firmly when pushed in while being turned. Since the typical wear pattern on a peg shaft interferes with this action, pegs occasionally require refitting, a specialized job which amounts to reshaping both pegs and holes to a smooth circular conical taper.