The present invention relates to a string instrument (1; 100) comprising a resonator (2), a handle (3) and a tailpiece (4; 40), wherein the handle (3) and the tailpiece (4; 40) are bound to the resonator (2) for combining at least one string to the instrument, further comprising at least one couple of magnets essentially opposed each other, a first magnet (11; 110) of the at least one couple of magnets bound to the resonator (2) and a second magnet (12; 120) of the at least one couple of magnets arranged at a first distance from the first magnet, so that to apply, between the first magnet (11; 110) and the second magnet (12; 120), a repulsive force or an attractive force, respectively, depending on the opposed polarities, equal or opposite, of the first magnet and the second magnet, wherein the attractive force or the repulsive force is active on the resonator (2).

The present invention relates to a string instrument (1; 100) comprising a resonator (2), a handle (3) and a tailpiece (4; 40), wherein the handle (3) and the tailpiece (4; 40) are bound to the resonator (2) for combining at least one string to the instrument, further comprising at least one couple of magnets essentially opposed each other, a first magnet (11; 110) of the at least one couple of magnets bound to the resonator (2) and a second magnet (12; 120) of the at least one couple of magnets arranged at a first distance from the first magnet, so that to apply, between the first magnet (11; 110) and the second magnet (12; 120), a repulsive force or an attractive force, respectively, depending on the opposed polarities, equal or opposite, of the first magnet and the second magnet, wherein the attractive force or the repulsive force is active on the resonator (2).

A musical instrument includes: an acoustic portion that makes sound in response to vibration; an exciter that includes an exciter body and a vibrating portion vibrating with respect to the exciter body, and excites the acoustic portion; and a support portion that is attached to the acoustic portion and supports the exciter body such that the vibration is transmitted from the vibrating portion to the acoustic portion. The support portion supports the exciter body such that the exciter body is elastically displaced with respect to the acoustic portion. A resonance frequency of a vibration system including the exciter body and the support portion is lower than the lowest resonance frequency of the acoustic portion.

Disclosed herein are various embodiments of devices and systems which may be reversibly coupled to a sound hole of a hollow-bodied stringed instrument for the generation of percussive musical sounds. Various embodiments herein disclosed comprise various means of reversibly coupling a percussive attachment with a musical instrument, and comprise adjustable device body lengths and angular orientations relative to the hollow body of musical instruments so as to allow percussive sound-generating elements to produce musical sounds from within a resonating chamber of the hollow-bodied instrument through interaction with an inner surface thereof.

Disclosed herein are various embodiments of devices and systems which may be reversibly coupled to a sound hole of a hollow-bodied stringed instrument for the generation of percussive musical sounds. Various embodiments herein disclosed comprise various means of reversibly coupling a percussive attachment with a musical instrument, and comprise adjustable device body lengths and angular orientations relative to the hollow body of musical instruments so as to allow percussive sound-generating elements to produce musical sounds from within a resonating chamber of the hollow-bodied instrument through interaction with an inner surface thereof.

A plastic ukulele has a sound board, a fretboard, a head plate and a lower half of the body integrated into a complete ukulele body. Attached to the bottom surface of the sound board are two paralleled outline reinforcing ribs which are in parallel with the outline of soundboard on the inside. The sound board has a sound hole in the upper middle part. Around the sound hole are two sets of lengthwise and widthwise paralleled reinforcing ribs. The part of sound board which is surrounded by the lower widthwise reinforcing ribs and the lower bout of outline reinforcing ribs is resonance section with a thickness of 1.0-1.4 mm only. Attached to the bottom surface of resonance section is a grid bracing structure in a one-piece molding with the sound board.

A plastic ukulele has a sound board, a fretboard, a head plate and a lower half of the body integrated into a complete ukulele body. Attached to the bottom surface of the sound board are two paralleled outline reinforcing ribs which are in parallel with the outline of soundboard on the inside. The sound board has a sound hole in the upper middle part. Around the sound hole are two sets of lengthwise and widthwise paralleled reinforcing ribs. The part of sound board which is surrounded by the lower widthwise reinforcing ribs and the lower bout of outline reinforcing ribs is resonance section with a thickness of 1.0-1.4 mm only. Attached to the bottom surface of resonance section is a grid bracing structure in a one-piece molding with the sound board.

A musical instrument, which is one of musical instruments generating a sound using a sound board, the musical instrument designed to generate resonance of abundant and various sounds by separating a resonance space into several parts by simultaneously using several sound boards to one musical instrument, to enable a magnificent and wide-spectrum performance such as an orchestra as one musical instrument by implementing a high-level sound effect required when playing the musical instrument, such as not only an increase of a volume, but generation of an individual tone, depth of a sound, and a stereoscopic sense of a sound by applying various and new elements to each of several sound boards.

A musical instrument, which is one of musical instruments generating a sound using a sound board, the musical instrument designed to generate resonance of abundant and various sounds by separating a resonance space into several parts by simultaneously using several sound boards to one musical instrument, to enable a magnificent and wide-spectrum performance such as an orchestra as one musical instrument by implementing a high-level sound effect required when playing the musical instrument, such as not only an increase of a volume, but generation of an individual tone, depth of a sound, and a stereoscopic sense of a sound by applying various and new elements to each of several sound boards.

Disclosed herein are various embodiments of devices and systems which may be reversibly coupled to a sound hole of a hollow-bodied stringed instrument for the generation of percussive musical sounds. Various embodiments herein disclosed comprise various means of reversibly coupling a percussive attachment with a musical instrument, and comprise adjustable device body lengths and angular orientations relative to the hollow body of musical instruments so as to allow percussive sound-generating elements to produce musical sounds from within a resonating chamber of the hollow-bodied instrument through interaction with an inner surface thereof.