Examples of an aiding device for singers are described. The aiding device comprises a body that has a periphery edge, a top wall and a smooth inner wall. The top wall curves away from the periphery edge thus forming a cup-like cavity which is shaped to define a first chamber and a second chamber that are interconnected together. The first chamber is shaped and sized to fit over an earlobe of a singer while the second chamber has a distal end that is designed and configured to be positioned in proximity to a user's mouth. When in use the first chamber encloses one of user's ears and the distal end of the second chamber is positioned in proximity to user's mouth with the periphery edge pressed against user's face such that a sound produced by the user is captured and travels into the second and first chamber and is reflected back from the smooth inner wall producing echo within the cavity. Thus, the unfiltered sound coming out from the singer's mouth is provided to one of the singer's ear in real time and hear the original sound or key in the other ear so that the singer can match his/her pitch to the original sound.

Examples of an aiding device for singers are described. The aiding device comprises a body that has a periphery edge, a top wall and a smooth inner wall. The top wall curves away from the periphery edge thus forming a cup-like cavity which is shaped to define a first chamber and a second chamber that are interconnected together. The first chamber is shaped and sized to fit over an earlobe of a singer while the second chamber has a distal end that is designed and configured to be positioned in proximity to a user's mouth. When in use the first chamber encloses one of user's ears and the distal end of the second chamber is positioned in proximity to user's mouth with the periphery edge pressed against user's face such that a sound produced by the user is captured and travels into the second and first chamber and is reflected back from the smooth inner wall producing echo within the cavity. Thus, the unfiltered sound coming out from the singer's mouth is provided to one of the singer's ear in real time and hear the original sound or key in the other ear so that the singer can match his/her pitch to the original sound.

A restringing device for a stringed instrument may include a guide chuck with one or more guide holes. The restringing device may also include one or more mandrils traversing through the one or more guide holes in a z-direction to restring a string around a tuning peg of the stringed instrument.

A restringing device for a stringed instrument may include a guide chuck with one or more guide holes. The restringing device may also include one or more mandrils traversing through the one or more guide holes in a z-direction to restring a string around a tuning peg of the stringed instrument.

A music score plate support structure for a musical instrument, includes: a music score plate; and a support mechanism portion configured to movably support the music score plate with respect to a front plate of a main body of the musical instrument. The support mechanism portion includes: a connecting portion, a first pivot portion connecting the connecting portion and the front plate of the main body to each other so as to be pivotable relative to each other, and a second pivot portion connecting the connecting portion and the music score plate to each other so as to be pivotable relative to each other.

A music score plate support structure for a musical instrument, includes: a music score plate; and a support mechanism portion configured to movably support the music score plate with respect to a front plate of a main body of the musical instrument. The support mechanism portion includes: a connecting portion, a first pivot portion connecting the connecting portion and the front plate of the main body to each other so as to be pivotable relative to each other, and a second pivot portion connecting the connecting portion and the music score plate to each other so as to be pivotable relative to each other.

A spinner assembly for an instrument having valves and/or slides. A clamp sub-assembly attaches to the instrument while a hand strap sub-assembly encircles a player's conjoined hand. A bearing rotatably connects the clamp sub-assembly to the hand strap sub-assembly about a drive axis (D) that is offset from the natural balance axis of the instrument (X). The clamp sub-assembly includes a mounting plate fashioned with three side-by-side cradles that nest against the horn valves. A lashing holds the cradles in position. The hand strap sub-assembly includes a generally rigid palm plate that fits in the player's palm. The palm plate has a hypothenar end, a web end and a distal edge. The distal edge has a ring finger relief adjacent the hypothenar end. A driver boss is affixed to the backside of the palm plate adjacent the web end. A flexible belt secures the player's hand to the palm plate.

The present invention relates to a shield device configured to fit over the mouthpiece of a wind instrument to block droplets and aerosols released by a performer using the instrument. The shield device receives and blocks germs and pathogens in droplets and aerosols and prevents them from spreading. The shield device does not interfere with the functionality and operation of the instrument and is configured to be positioned in front of the nose and mouth of a performer at a distance of up to a few inches.

Provided is an information processing device including an acquisition unit that acquires subjective evaluation information from a second user about each performance performed by at least part of a body of a first user moving, a learning unit that performs machine learning on a relationship between the each performance and the corresponding subjective evaluation information and generates relationship information between the each performance and the corresponding subjective evaluation information, and a presentation unit that presents feedback information to the second user based on the relationship information.

A fret leveling apparatus that is configured to provide leveling of frets on a fret board of a stringed instrument such as but not limited to a guitar. The present invention includes a body wherein the body in its preferred embodiment is rectangular in shape. The body includes a first end and a second end and further has an upper edge surface and a lower edge surface. The lower edge surface is operable to engage the frets during use of the present invention and has an adhesive material secured thereto. The body includes a first aperture and second aperture having a first height adjustment member and a second height adjustment member operably coupled therein. The first height adjustment member and second height adjustment member are constructed so as to provide calibrated incremental height adjustment of the body with respect to the fret board once placed thereon through rotational movement.