A bonded bow device for providing injured-hand support to a musician in playing a stringed instrument with an injured, disabled or otherwise impaired wrist, finger(s) and/or hand, and to play with a more relaxed wrist. The bonded bow device generally comprises a base formed as an elongate resilient partial-tubular member interrupted by a lengthwise notch configured for clamping a frog of a bow. A double-finger collar is fixedly attached to the base. In use a musician inserts any two adjacent good fingers of either hand through the double-finger collar and furls all remaining healthy fingers around the base and bow. No matter the remaining grip strength, the support given by double-finger collar adds enough control to enable the musician to play.

A bonded bow device for providing injured-hand support to a musician in playing a stringed instrument with an injured, disabled or otherwise impaired wrist, finger(s) and/or hand, and to play with a more relaxed wrist. The bonded bow device generally comprises a base formed as an elongate resilient partial-tubular member interrupted by a lengthwise notch configured for clamping a frog of a bow. A double-finger collar is fixedly attached to the base. In use a musician inserts any two adjacent good fingers of either hand through the double-finger collar and furls all remaining healthy fingers around the base and bow. No matter the remaining grip strength, the support given by double-finger collar adds enough control to enable the musician to play.

A stringed instrument tailpiece includes an elongate body. Openings, which may be slots or through-holes, are formed at a bridge-end of the elongate body to engage a musical instrument's one or more strings. An opening at the gut-end of the elongate body is configured to engage a gut, which attaches to an instrument endpin.

A stringed instrument tailpiece includes an elongate body. Openings, which may be slots or through-holes, are formed at a bridge-end of the elongate body to engage a musical instrument's one or more strings. An opening at the gut-end of the elongate body is configured to engage a gut, which attaches to an instrument endpin.

The Spring Bracing System invention is disclosed for optimizing the musical voice of a stringed musical instrument by improving the transfer of musical string vibration energy and adding structural support and spring quality to targeted locations on the instrument's sound board. The Spring Bracing System, comprising a spring brace frame, a tensioning system, a fulcrum lever system, sound posts and sound braces, operates as a simple machine in transferring vibration energy generated when the instrument's strings are in motion. The adjustability of the system allows the musician to customize, optimize, and improve the musical voice of the instrument to his preference. On most steel string guitars, the Spring Bracing System can be installed without modification to the instrument. It can be installed in other types of stringed musical instruments, such as classical guitars, cellos and double basses, with minor modifications.

A double-bar violin family without sound post, including a resonance box, with a front plate, back plate and sidewalls, wherein: two upper bars are parallel on the front plate inner wall; two lower bars are parallel on the back plate inner wall; an upper cross groove sits on the front plate inner wall, and forms an upper cross sound tunnel on the front plate inner wall; a lower cross groove sits on the back plate inner wall, and the lower cross groove forms a lower cross sound tunnel on the back plate inner wall. This breaks the shackles of the traditional bass bar and sound post design in resonance box, eliminates sound post in resonance box, and proposes a new improved design, wherein treble register is not bright, and bass register is not sonorous and mellow enough, so the resonance box produces treble, alto, and bass registers with good timbre.

A double-bar violin family without sound post, including a resonance box, with a front plate, back plate and sidewalls, wherein: two upper bars are parallel on the front plate inner wall; two lower bars are parallel on the back plate inner wall; an upper cross groove sits on the front plate inner wall, and forms an upper cross sound tunnel on the front plate inner wall; a lower cross groove sits on the back plate inner wall, and the lower cross groove forms a lower cross sound tunnel on the back plate inner wall. This breaks the shackles of the traditional bass bar and sound post design in resonance box, eliminates sound post in resonance box, and proposes a new improved design, wherein treble register is not bright, and bass register is not sonorous and mellow enough, so the resonance box produces treble, alto, and bass registers with good timbre.

A simulated musical string instrument formed of plural shaped sheets of rigid material, such as cardboard. There is a top sheet forming a top surface of the simulated string instrument body, and a bottom sheet forming a bottom surface, and multiple sheets between. A simulated fingerboard is attached to the top surface. The top sheet and fingerboard gets stickers that show parts of the simulated string instrument body including openings and notes. There is also a simulated bow guide and a simulated bow.

The object of the invention is a bowed instrument comprising a body (2) and a neck (1), the upper face of the body (2) being the top plate (4), at the bottom of which a tailpiece is disposed secured to the bottom of the instrument, the strings (14) being disposed in a tensioned state, supported from below by a bridge, between the tailpiece and the scroll (8) of the neck (1). The bowed instrument according to the invention comprises a tailpiece (16) that is adapted to retain the bottom portion of the strings (14), has an arcuate triangular shape, has an asymmetrically shaped body made of a multilayered material, and is rounded along the periphery of its body, wherein bores (20) adapted for receiving the strings (14) are disposed at the bottom corner (a) and along the arced portion (9) extending between the two upper corners (b, c) thereof.

The object of the invention is a bowed instrument comprising a body (2) and a neck (1), the upper face of the body (2) being the top plate (4), at the bottom of which a tailpiece is disposed secured to the bottom of the instrument, the strings (14) being disposed in a tensioned state, supported from below by a bridge, between the tailpiece and the scroll (8) of the neck (1). The bowed instrument according to the invention comprises a tailpiece (16) that is adapted to retain the bottom portion of the strings (14), has an arcuate triangular shape, has an asymmetrically shaped body made of a multilayered material, and is rounded along the periphery of its body, wherein bores (20) adapted for receiving the strings (14) are disposed at the bottom corner (a) and along the arced portion (9) extending between the two upper corners (b, c) thereof.