JP2012181380A - String-elevating tuning device and method of stringed instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a string-elevating tuning device and method of a stringed instrument, which allows extension of a lifetime of a nut with a roller by reducing an amount of string slide to a nut groove bottom during tuning as much as possible to minimize wear of the groove bottom.SOLUTION: The string-elevating tuning device 1 of a stringed instrument comprises: a base plate which is inserted under a plurality of strings 109 stretched over a fingerboard 103 and a head 105 of a stringed instrument 101 and retained by nut grooves 106g, and is installed on the head or the fingerboard; a string retention structure disposed between the base plate and the strings; and an elevation structure which elevates the string retention structure so as to be able to lower the string retention structure relative to the base plate, to push up the strings. The device is configured so as to individually retain the pushed-up strings while allowing the pushed-up strings to slide forward and backward in a tension direction, and the individual retention reduces the burden to nut groove bottoms.

Description

  The present invention relates to a stringed musical instrument for raising and lowering a stringed instrument that can push up a string stretched on a stringed instrument represented by a guitar, a mandolin, and a violin, and slide the string in the pushed-up state.

  One of the various stringed instruments is the guitar. The string of the guitar is maintained at a predetermined position by a bridge provided on the front plate of the body as a main body, and a nut provided between a fingerboard as a part of the neck and the head. It is a peg (pincushion) provided on the head that prevents tension on the string.

  Nuts come in a variety of materials, such as plastic, cow bone, carbon, brass (brass), and have an elongated groove for receiving a string. The groove bottom of the groove is formed in a curved surface that slopes downward toward the head so as to support the string with “dots”. The point contact is required in order to prevent a so-called “buzzing sound” between the strings played when the contact surface between the strings and the groove bottom spreads.

  On the other hand, the string needs to be tuned, and the tuning is performed by rotating the peg. When tuning is performed, the string slides against the groove bottom, causing wear on the groove bottom. In the guitar, the lower strings (4th to 6th strings) are mainly wound with a metal wire coiled around a plastic string. The unevenness of the surface of the wound string is under strong tension. Accelerates groove bottom wear. Wear may be caused not only by the groove bottom but also by the both groove walls sandwiching the groove. Nut that has been worn out, the contact surface between the string and the bottom of the groove will spread, and a “buzzing sound” will come out, so this must be replaced with a new one.

  However, since nuts give subtle changes in sound quality due to the contact between the strings and the groove bottom, adjustment by skilled workers is required. Therefore, the wage burden is very heavy. In addition to this, the material is also expensive. For these reasons, it is the player's desire to reduce the frequency of nut replacement as much as possible. On the other hand, other musical instruments are the same, but there are guitars of a specific brand and date of manufacture called “vintage”, which are treated as very expensive. The nuts used in vintage guitars are themselves vintage, so if you replace them with a different one, the overall value of the guitar will be reduced. It is not possible to exchange.

  In such a background, in order to reduce the generated frictional force, it has been proposed to configure the nut with a roller (hereinafter abbreviated as “nut with roller”) (see Patent Document 1).

JP-A-7-56558 (see paragraph 0029)

  However, in order to maintain sound quality, it is better that there is no vibration or movement as much as possible. In the first place, the roller is a rotating body. Furthermore, in order to attach a nut with a roller to a vintage guitar, it will be necessary to replace the original (vintage) nut, so it cannot be adopted. As long as the string is stretched using a nut, it is not possible to completely prevent the wear of the nut, so there was no way to make the nut last longer than efforts to reduce the number of tunings.

  The present invention has been made to improve such a situation. That is, an object of the present invention is to minimize the wear of the groove bottom by minimizing the amount of string sliding with respect to the nut groove bottom during tuning, thereby dramatically extending the life of the nut.

  In order to solve the above-described problems, the present invention has solved the above-described problems of the present invention by pushing up the strings for tuning and floating them from the bottom of the nut grooves. The details will be explained anew in the section. It should be noted that the definitions of terms used in describing any invention shall be applied to other inventions regardless of the category of the invention, the order of description, and the like.

(Characteristics of the invention of claim 1)
The lifting / lowering tuning device according to the first aspect of the invention (hereinafter referred to as "the lifting / lowering tuning device of claim 1" is stretched on the fingerboard and the head of the stringed musical instrument and under a plurality of strings maintained by nut grooves. A base plate to be inserted and installed on the head or fingerboard; a string maintaining structure disposed between the base plate and the string; and raising the string maintaining structure to the base plate so that the string can be lowered. The string holding structure is configured to individually hold the pushed strings so as to be slidable back and forth in the tension direction. Examples of the relationship with the string include sliding contact and rolling contact.

  According to the lifting / lowering stringing device of the first aspect, the string maintaining structure is raised by the action of the lifting structure to push up the string to reduce or eliminate the load on the groove bottom of the nut groove. Since the pushed-up strings can slide back and forth in the tension direction, each string can be individually slid, that is, the strings can be tuned. It is so small that it cannot be done. Since the string cannot be played with the strings pushed up, the lifting / lowering mechanism is moved downward in the direction opposite to that when the string is raised, and the string holding structure is lowered and the string is returned to the nut groove and maintained. Just pull out from below. Then, fine tuning is performed as necessary. During fine tuning, the load on the groove bottom increases, but the load is very small compared to when the string is not raised at all. Therefore, the wear of the groove bottom is extremely close to zero. Thereby, the lifetime of a nut can be extended significantly.

(Characteristics of the invention described in claim 2)
The lifting / lowering tuning apparatus according to the invention described in claim 2 (hereinafter referred to as “the lifting / lowering tuning apparatus of claim 2”) is the lifting / lowering tuning apparatus of claim 1, wherein the string maintaining structure slides back and forth. It is characterized by including the same number of rollers as the number of strings in rolling contact with each string.

  The lifting / lowering stringing device according to the second aspect has the same effect as the lifting / lowering stringing device according to the first aspect, and the burden on the string that is in rolling contact with the roller is very small.

(Characteristics of Claim 3)
The lifting / lowering tuning apparatus according to the invention described in claim 3 (hereinafter referred to as “the lifting / lowering tuning apparatus according to claim 3”) is the lifting / lowering tuning apparatus according to claim 2, and the outer periphery of the roller is provided at the time of installation. An annular groove for receiving a string is formed, and the annular groove is partitioned by a groove bottom and both inclined walls rising from both sides of the groove bottom. That is, the cross-sectional shape of the annular groove is a V-like shape spreading from the center of the roller toward the outer periphery, but is not necessarily symmetrical.

  According to the lifting / lowering stringing device of the third aspect, in addition to the function and effect of the lifting / lowering tuning device of the second aspect, since the inclined wall stands up toward the end, the string maintaining structure can easily accept the string. That is, the operation is simplified.

(Feature of the invention of claim 4)
The lifting / lowering tuning apparatus according to the invention described in claim 4 (hereinafter referred to as "the lifting / lowering tuning apparatus of claim 4") is the lifting / lowering tuning apparatus according to claim 3, wherein the strings received in the two inclined walls are received. The slanted wall on the side where the tension in the thickness direction is applied is positioned so that the component force in the groove bottom direction of the tension in the thickness direction of the string can receive the string lowered after tuning in the original nut groove. It is formed so as to be moved or held. The thickness direction tension is a tension different from the tension generated by tuning (tuning direction) and means a tension in a direction crossing the string.

  According to the lifting / lowering tuning apparatus of the fourth aspect, in addition to the operational effects of the lifting / lowering tuning apparatus of the third aspect, the following operational effects are produced. If the tension in the thickness direction is generated, the position of the string and the nut groove is shifted as it is, and when the string is lowered, it cannot be received in the original nut groove. According to the lifting / lowering tuning apparatus of the third aspect, it is received in the original nut groove. That is, a component force in the groove direction is generated on the inclined wall that has received the tension in the thickness direction. This component force is adjusted so that the lowered string is received in the original nut groove by moving or maintaining the string in the groove direction.

(Feature of the invention of claim 5)
The lifting / lowering tuning apparatus according to the invention described in claim 5 (hereinafter referred to as “elevating / lowering tuning apparatus of claim 5”) is the lifting / lowering tuning apparatus according to any one of claims 2 to 4, wherein the lifting structure includes: The roller maintenance body includes a roller maintenance body that maintains the roller rotatably. The roller maintenance body is configured to be swingable with respect to the base plate, and the roller moves up and down by swinging. It is configured as described above.

  According to the lifting / lowering tuning apparatus of claim 5, the lifting / lowering tuning apparatus according to any one of claims 2 to 4, wherein the roller rotates relative to the roller maintenance body, and the roller maintenance body swings relative to the base plate. To do. Since the position of the roller with respect to the base plate changes in an arc by swinging, the roller is moved up and down using this change.

(Characteristics of the invention described in claim 6)
The lifting / lowering tuning apparatus according to the invention described in claim 6 (hereinafter referred to as "elevating / tuning apparatus of claim 6") is the lifting / lowering tuning apparatus according to claims 1 to 5, and further, the base plate is used as a head. Alternatively, a fixing structure for fixing to the fingerboard is provided.

  The lifting / lowering tuning apparatus according to claim 6 is the lifting / lowering tuning apparatus according to any one of claims 1 to 5, wherein the base plate can be fixed to the head or the fingerboard by the action of the fixing structure. The tuning device can be installed stably. That is, a load is applied to the base plate when the string slides in the tension direction by tuning, but this may prevent the base plate from moving due to the load.

(Feature of the invention of claim 7)
According to the seventh aspect of the present invention, there is provided an up-and-down tuning method (hereinafter referred to as "up-and-down tuning method of claim 7") comprising a plurality of strings stretched over a fingerboard and a head of a stringed instrument and maintained by nut grooves. It is characterized in that it is raised while being individually tuned and floated from the bottom of the nut groove, tuned in a floated state, lowered after tuning and returned to the groove bottom.

  According to the lifting / lowering tuning method of claim 7, the string is pushed up to reduce or eliminate the load on the groove bottom of the nut groove. Since the pushed-up strings can slide back and forth in the tension direction, each string can be individually slid, that is, the strings can be tuned. It is so small that it cannot be done. You can't play with the strings pushed up, so when you play, lower the strings and keep them back in the nut grooves. Then, fine tuning is performed as necessary. During fine tuning, the load on the groove bottom increases, but the load is very small compared to when the string is not raised at all. Therefore, the wear of the groove bottom is extremely close to zero. Thereby, the lifetime of a nut can be extended significantly.

  According to the present invention, it is possible to minimize the wear of the groove bottom by minimizing the amount of string sliding with respect to the nut groove bottom during tuning, and thereby to greatly extend the life of the nut.

It is a top view of the raising / lowering tuning apparatus installed in the guitar head. It is a top view of a raising / lowering tuning apparatus. It is a front view of the raising / lowering tuning apparatus shown in FIG. It is a left view of the raising / lowering tuning apparatus shown in FIG. It is AA sectional drawing of the raising / lowering tuning apparatus shown in FIG. It is a top view of the raising / lowering tuning apparatus installed in the other guitar head. It is a longitudinal cross-sectional view of the roller which concerns on this modification.

  Here, the best mode for carrying out the present invention (hereinafter referred to as “the present embodiment” as appropriate) will be described. Although the stringed instrument according to the present embodiment is an electronic guitar (electric guitar), other strings (classic guitar, flamenco guitar, etc.) and other stringed instruments (mandolin, violin, etc.) are also included. In this specification, the above-described electronic guitar is simply referred to as “guitar”.

(Schematic structure of the guitar)
A guitar 101 shown in FIG. 1 includes a fingerboard 103, a head 105 following the fingerboard 103, and a guitar body (not shown) at the tip of the fingerboard 103 on the opposite side of the head 105. Between the fingerboard 103 and the head, there is provided a nut 106 that supports the string 109 between a bridge (not shown) attached to the guitar body. The nut 106 is maintained by receiving the first to sixth strings 109a to 109f stretched on the finger plate 103 and the head 105 in the corresponding nut grooves 106g. The ends of the first to sixth strings 109 a to 109 f are wound around a peg 107 that is wound up and rotated by a knob 108. The knob 108 can be tuned by sliding the first to sixth strings 109a to 109f in the tension direction (string length direction). When the string is tuned in this state, the nut 106 is easily worn by the slide of the string in contact with the nut 106.

(Configuration of lifting and tuning device)
The lifting / lowering tuning apparatus 1 will be described with reference to FIGS. As shown in FIG. 1, the lifting / lowering stringing device 1 is schematically configured by a base portion 3, a string maintaining structure 5, and a lifting structure 7. The base part 3 is a part for attaching the lifting / lowering tuning apparatus 1 to the guitar. Specifically, a base plate 11 that is inserted under the plurality of strings 109a to 109f and installed on the head 105, a U-shaped arm 13 having one end of the base plate 11 curved in a U-shape, and a U-shape The back plate 15 is connected to the open end of the arm 13 and faces the base plate 11. As shown in FIG. 3, the U-shaped arm 13 is a member for creating a space S for inserting a head (not shown in FIG. 3) between the base plate 11 and the back plate 15. The base plate 11 can be fixed to the head 105 of the guitar 101 by a fixing structure described below. The fixing of the base plate 11 is also the fixing of the entire lifting / lowering tuning apparatus 1.

  The back plate 15 is provided with a thumbscrew 23 that can be screwed into a screw hole (not shown) penetrating the back plate 15 and can reciprocate in the thickness direction (vertical direction in FIG. 3). A presser piece 21 is fixed to the tip of the thumbscrew 23 protruding into the space S in a T-shape. A cushion material 24 is fixed to the open surface of the presser piece 21 (the upper surface in FIG. 3). With the configuration described above, the base plate 11 (the entire lifting / lowering tuning apparatus 1) is moved to the head 105 by rotating the thumbscrew 23 in the tightening direction to raise the presser piece 21 and press the cushion material 24 against the head 105 inserted into the space S. Can be fixed. When releasing the fixation, the presser piece 21 is lowered by turning the thumbscrew 23 in the loosening direction opposite to the tightening direction. The U-shaped arm 13, the back plate 15, the thumbscrew 23, the presser piece 21, and the cushion material 24 described so far constitute the fixing structure 12 in the present embodiment. In the present embodiment, the base plate 11 and the like are installed on the head 105, but may be installed on the finger plate 103.

(Structure of string maintenance structure)
The string maintaining structure 5 will be described with reference to FIGS. The string maintaining structure 5 is disposed between the base plate 11 and the string 109. The string maintaining structure 5 includes a roller 31, a roller case, a roller shaft 35, a case holding body 37, and a case shaft 39. The roller 31 includes first to sixth string rollers 31a to 31f corresponding to the first to sixth strings 109a to 109f (see FIG. 1). The first to sixth string rollers 31a to 31f are arranged in a straight line in the direction in which the strings are arranged so as to independently rotate around the roller shaft 35. That is, each roller is made of a synthetic resin that is resistant to wear and has a small friction coefficient, so that it is in sliding contact with the adjacent roller 31e. For this reason, each roller is independent from each other during rotation, and each string can be individually maintained.

(Roller configuration)
First, the sixth string roller 31f will be described. The sixth string roller 31f is configured in a shape similar to a thread winding. An annular roller groove 31g (see FIG. 3) is formed over the entire circumference of the sixth string roller 31f in the center in the axial direction. The roller groove 31g is a groove for receiving the sixth string 109f and preventing lateral deviation. The sixth string roller 31f rotates and makes rolling contact with the reciprocating slide in the tension direction of the sixth string 109f accompanying tuning. A member (not shown) that makes sliding contact may be employed instead of the roller that makes rolling contact. In addition, only the width of the roller groove 31g (see FIG. 2) of each roller is slightly different depending on the thickness of the string, and other structures are not different from the first string roller to the fifth string rollers 31a to 31e. Therefore, only the sixth string roller 31f will be described here, and the description of the other rollers will be omitted.

(Configuration of roller case)
As shown in FIGS. 2 to 4, the roller 31 is housed and maintained in a roller case (roller maintenance body) 33. The roller case 33 is a vertically long box having a U-shaped bottom 34. On the other hand, the roller case 33 is elongated in the length direction, and both end portions of the roller shaft 35 are fixed to both ends in the length direction. The roller 31 rotatably supported by the roller shaft 35 is accommodated in the roller case 33 so that about half of the radius is exposed to the outside from the upper end opening. The reason why the U-shaped bottom portion 34 is formed is to form a fitting relationship with the stopper 40 (see FIGS. 3 and 4) fixed on the base plate 11. That is, as shown in FIG. 5, the stopper 40 has a U-shaped recess having substantially the same curvature as the U-shaped bottom portion 34. The U-shaped concave portion 40a has a function as a holding structure that receives and holds the U-shaped bottom portion 34 that has passed over the wall portions 40b (see FIG. 5) on both sides thereof. By this holding, the roller case 33 is positioned with respect to the base plate 11. In addition, the roller shaft 35 is configured to idle with respect to a side wall 37b of a case holder 37 which will be described later.

(Configuration of lifting structure)
The elevating structure 7 will be described with reference to FIGS. The elevating structure 7 includes the roller case 33, the case shaft 39, the case holder 37, and the handle 38 described above. The case holding body 37 is composed of a bottom plate portion 37a slightly longer than the roller case 33 and both side plate portions 37b rising from both ends of the bottom plate portion 37a. The bottom plate portion 37 a is fixed on the base plate 11. A case shaft 39 is fixed to both side portions 37b. The roller case 33 is attached to the case shaft 39 so as to swing around the case shaft 39. The case shaft 39 is located at the center of roundness at the bottom of the U-shape. Since the roller case 33 is a vertically long box as described above, the case shaft 39 when viewed from the side is eccentric with respect to the roller case 33 (see FIG. 5). The handle 38 is for rotating as shown in FIG. 4 to change the posture (standing upright or lying down) of the roller case 33 as shown in FIG.

(Operational effect of this embodiment)
The operation and effect of the elevating structure 7 will be mainly described. When the roller case 33 is laid sideways (two-dot chain line in FIG. 5), there is no contact between the string 109 indicated by the two-dot chain line and the roller 31 (31f). The string 109 at this time is maintained at the groove bottom of the nut 105. When the handle 38 is rotated (see FIG. 4) and the roller case 33 is raised as shown in FIG. 5, the roller 31 rises while drawing an arc with respect to the base plate 11 (shown by a solid line). Push up. The string 109 is separated from the groove bottom of the nut 105 by pushing up. Here, even if the string 109 slides in the tension direction by tuning, the roller 31 follows while rolling and contacting the string 109, so there is no burden on the groove bottom of the nut 105. When the handle 38 is rotated in the opposite direction after tuning, the roller 31 (31f) descends while drawing an arc, and the contact with the string 109 disappears. At this time, the string 109 is again maintained at the groove bottom of the nut 105. Therefore, by reducing the amount of string sliding relative to the nut groove bottom during tuning, the wear on the groove bottom can be kept to a minimum, and the life of the nut can be greatly extended.

(Roller variants)
A modified example of the roller will be described with reference to FIGS. The roller 31 described above is different from the roller 31 ′ according to the present modification in the shape of the roller grooves. First, the premise that the roller grooves have different shapes will be described. Each peg 107 according to the present embodiment is on an extension line of each nut groove 106g (see FIG. 1). That is, the strings 109 (109a to 109e) extend straight from the fingerboard 103 toward the pegs 107. No tension is generated in the thickness direction (lateral direction in FIG. 1) on the strings in this state. Therefore, the roller groove 31g (groove wall) of the roller 31 does not receive the tension in the thickness direction or is in a negligible range.

  On the other hand, when the double-triple or more are wound on the peg 107, the position of the string 109 is shifted in the thickness direction (right direction in FIG. 1) from the peg 107 by the amount overlapped. The string 109 is tensioned in the thickness direction. If the tension in the thickness direction is too large, the string 109 may be detached from the roller groove 31g. As shown in FIG. 6, the case where the peg 107 'is provided on the head 105' at a position shifted from the extension line of the nut groove 106g is more so. Since the string 109 that is out of the roller groove 31g is at a position different from the position before tuning, there may be a case where the string groove 109g cannot be received when the roller 31 is lowered by the operation of the elevating structure 7. In order to move or maintain the string 109 that is tensioned in the thickness direction to a position that can be received in the nut groove 106g after tuning, the roller 31 'according to this modification is employed.

  Now, the roller 31 ′ according to this modification will be specifically described. As shown in FIG. 7, the roller groove 31′g of the roller 31 ′ is an annular groove extending in the circumferential direction of the roller 31 ′. The roller groove 31'g is a substantially V-shaped groove that is partitioned by both the groove bottom 31'ga and the inclined walls 31'gb and 31'gc rising from both sides of the groove bottom 31'ga. Although it is substantially V-shaped, if it has the structure shown below, it is not necessarily required to be bilaterally symmetric.

  Of the inclined walls 31′gb and 31′gc, the inclined wall (inclined wall 31′gb in FIG. 7) on which the thickness of the received string 109f (the same applies to other strings) is applied is the thickness of the string 109f. The component force F in the direction of the groove bottom 31 ′ ga of the vertical tension can accept the string 109 f lowered by operating the elevating structure 7 (see FIG. 6) after tuning into the original nut groove 106 g (FIG. 6). It is formed to move or hold in position. That is, the string 109f when it is raised before tuning by the thickness direction tension tries to move away from the groove bottom 31'ga on the inclined wall 31'gb, but the component force F prevents it and prevents the groove bottom 31 '. ga (or on the inclined wall 31'gb slightly above it). This state is maintained even after the string is lowered (or moved to a desired position), whereby the string 109f is received in the nut groove 106g. The magnitude of the component force F is determined by the thickness direction tension, the inclination angle of the inclined wall 31'gb, the friction coefficient of the surface thereof, the friction coefficient of the surface of the chord 109f, and the like. Since the friction coefficient of the string cannot be controlled, the magnitude of the component force F is adjusted by the inclination angle of the inclined wall 31′gb so that the string 109f is maintained at the optimum position. It should be noted that when the string 109f is lowered, it does not prevent the user from adjusting the position of the string with a finger or the like so as to be received by the nut groove 106g.

  If the roller 31 'according to this modification is adopted, regardless of the tension in the thickness direction generated on the string wound on the peg on the extension line of the nut groove or on the string wound by the peg not on the extension line When lowering after tuning, the string is moved or maintained in a position that can be received by the original net groove, so that the lowering of the string after tuning is performed smoothly and reliably. it can.

DESCRIPTION OF SYMBOLS 1 Elevation adjustment apparatus 3 Base part 5 String maintenance structure 7 Elevation structure 11 Base board 12 Fixing structure 13 U-shaped arm 15 Back plate 21 Pressing piece 23 Thumb screw 24 Cushion material 31 Roller 31a First string roller 31b Second string roller 31c 3rd string roller 31d 4th string roller 31e 5th string roller 31f 6th string roller 31g Roller groove 33 Roller case (roller maintenance body)
34 U-shaped bottom 35 Roller shaft 37 Case holder 37a Bottom plate 37b Side plate 38 Handle 39 Case shaft 40 Stopper 40a U-shaped recess 40b Wall 101 Guitar (stringed instrument)
103 fingerboard 105 head 106 nut 106g nut groove 107 peg 108 knob 109 string 109a first string 109b second string 109c third string 109d fourth string 109e fifth string 109f sixth string S space

Claims (7)

A base plate that is inserted on the fingerboard of the stringed instrument and inserted under a plurality of strings maintained in the nut groove and installed on the head or fingerboard;
A string maintaining structure disposed between the base plate and the string;
An elevating structure that raises the string maintaining structure so as to be lowered with respect to the base plate and pushes up the string, and
The string maintaining structure is configured to individually maintain the pushed-up strings so as to be slidable back and forth in the tension direction. The said string maintenance structure contains the roller as many as the number of the string which carries out rolling contact with each string to reciprocately slide. The raising / lowering tuning apparatus of the stringed instrument of Claim 1 characterized by the above-mentioned. On the outer periphery of the roller, an annular groove for receiving a string at the time of installation is formed,
The said vertical groove | channel is divided by the both inclined walls which stand up from the groove bottom and the said groove bottom both sides, and the raising / lowering tuning apparatus of the stringed instrument of Claim 2 characterized by the above-mentioned. Of the two inclined walls, the inclined wall on the side to which the tension in the thickness direction of the received string is applied, the component force in the groove bottom direction of the tension in the thickness direction of the string is the original of the string lowered after tuning. The stringing / raising / lowering tuning device for a stringed instrument according to claim 3, wherein the stringing / adjusting device is formed so as to be moved or held in a position acceptable in the nut groove. The elevating structure includes a roller maintenance body that rotatably maintains the roller,
The said roller maintenance body is comprised so that rocking | fluctuation with respect to the said base board is comprised, and it is comprised so that the said roller may raise / lower by rocking | fluctuating. Elevating and lowering string device for string instruments. Furthermore, the raising / lowering tuning apparatus of the stringed instrument in any one of the Claims 1 thru | or 5 provided with the fixing structure for fixing the said base board to a head or a fingerboard. A plurality of strings stretched over the fingerboard of the stringed instrument and the head and maintained in the nut groove are raised while maintaining individual tuning, and are lifted from the bottom of the groove of the nut groove. A method for raising and lowering a stringed instrument, which is lowered after the string and returned to the bottom of the groove.

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