The diamond tipped nut filing tool includes a body and a diamond tipped file. The diamond tipped file may be disposed along one end of the body. The body has a longitudinal length and at least half of the length includes a circumference so that at least one half of the longitudinal length is rounded.

The diamond tipped nut filing tool includes a body and a diamond tipped file. The diamond tipped file may be disposed along one end of the body. The body has a longitudinal length and at least half of the length includes a circumference so that at least one half of the longitudinal length is rounded.

A device for detecting the grip pattern when playing a bowed instrument, having a sensor film arrangeable on the fingerboard for detecting the grip pattern. The sensor film is formed from at least one resistance layer, a conductive layer and a spacer layer arranged in-between, and having an evaluation circuit, by which evaluation circuit the resistance changes of the sensor film caused by the grip pattern are able to be detected. The resistance layer is divided into a number of resistance tracks corresponding to the number of strings of the bowed instrument. The width of each resistance track is formed increasing from one end of the sensor film to the other end of the sensor film, and the upper layer of the sensor film is formed by the conductive layer, and the sensor film has a curvature, corresponding to the arch of the fingerboard.

A device for detecting the grip pattern when playing a bowed instrument, having a sensor film arrangeable on the fingerboard for detecting the grip pattern. The sensor film is formed from at least one resistance layer, a conductive layer and a spacer layer arranged in-between, and having an evaluation circuit, by which evaluation circuit the resistance changes of the sensor film caused by the grip pattern are able to be detected. The resistance layer is divided into a number of resistance tracks corresponding to the number of strings of the bowed instrument. The width of each resistance track is formed increasing from one end of the sensor film to the other end of the sensor film, and the upper layer of the sensor film is formed by the conductive layer, and the sensor film has a curvature, corresponding to the arch of the fingerboard.

A file for filing a fret of a stringed instrument includes a filing slot with two radiused side regions that are coated with abrasive material and a central crown region that is non-abrasive. Sliding the filing slot back and forth across a fret will file away material using the radiused sides. Once the non-abrasive crown region touches the fret the filing motion can cease, and the fret will be appropriately crowned without over-filing.

A string instrument has a neck attached to a body and extending outwardly therefrom. The body has a top plate joined to a bottom plate by a continuous rib forming an interior volume therebetween. A tailpiece is joined to the body. The tailpiece has tubular string bores. Each string bore has an entrance for receiving a string therein and an exit from which the string emerges and extends to the neck. At least one the exits has a cross-sectional shape in which a length of a major axis of the cross-sectional shape is greater than a length of a minor axis of the cross-sectional shape.

A string instrument has a neck attached to a body and extending outwardly therefrom. The body has a top plate joined to a bottom plate by a continuous rib forming an interior volume therebetween. A tailpiece is joined to the body. The tailpiece has tubular string bores. Each string bore has an entrance for receiving a string therein and an exit from which the string emerges and extends to the neck. At least one the exits has a cross-sectional shape in which a length of a major axis of the cross-sectional shape is greater than a length of a minor axis of the cross-sectional shape.

A string instrument has a body and a neck. The body has a top plate joined to a bottom plate forming an interior volume therebetween. The neck is attached to the body and extends outwardly therefrom. A tailpiece is joined to the body. A first soundpost is located within the interior volume of the body and joins the top plate with the bottom plate. A second soundpost is also located within the interior volume and also joins the top plate with the bottom plate.

A string instrument has a body and a neck. The body has a top plate joined to a bottom plate forming an interior volume therebetween. The neck is attached to the body and extends outwardly therefrom. A tailpiece is joined to the body. A first soundpost is located within the interior volume of the body and joins the top plate with the bottom plate. A second soundpost is also located within the interior volume and also joins the top plate with the bottom plate.

Ergonomic improvement for stringed musical instrument arrived at though the creation of a multi plane body; or neck body joining; that causes the repositioning of instrument's neck finger board radius crown in relation to performers body reducing curvature of wrist, extension of tendons, and effort required to fret notes.