A topboard support device for a grand piano, in which a topboard prop can be accommodated without placing the same on ribs of a frame. The topboard support device supports a topboard capable of opening and closing the top of a piano body, in an open state, and includes the topboard prop for supporting the opened topboard from below by a tip end portion thereof, and a prop support member for supporting the topboard prop via a base end portion thereof in a manner pivotally movable about vertical and horizontal axes. The topboard prop is pivotally moved by the prop support member between a position for being accommodated in a space between the ribs of the frame and an outer rim, in a substantially horizontal posture, and a position for supporting the topboard, in a posture tilted in a manner rising toward a tip end.

Electronic apparatus includes a housing, a first sound-emitting component provided at a first side in a left-right direction of the housing and having multiple sound-emitting elements whose main sound-emitting directions differ from each other, and a second sound-emitting component provided at a second side in the left-right direction of the housing and having multiple sound-emitting elements whose main sound-emitting directions differ from each other.

A pianoforte instrument, in particular a piano, has a base. Several bearings serve to support the pianoforte instrument on a floor. A height adjuster is also provided, which permits a height adjustment of the slide element relative to the base and/or a console. A device that facilitates transport is preferably provided on each of the bearings. The device that facilitates transport has a slide element, which permits sliding on the floor.

A pianoforte instrument, in particular a piano, has a base. Several bearings serve to support the pianoforte instrument on a floor. A height adjuster is also provided, which permits a height adjustment of the slide element relative to the base and/or a console. A device that facilitates transport is preferably provided on each of the bearings. The device that facilitates transport has a slide element, which permits sliding on the floor.

A height-adjustable desk-type electric piano is composed of a bracket body and a desk-type keyboard assembly installed on the bracket body, and an adjustment device for the lifting adjustment of the bracket body is arranged on the bracket body; the desk-type keyboard assembly comprises a desk top and a piano keyboard, and the piano keyboard is drawer-connected in the desk top, which can be extended and retracted; in the piano frame of the electric piano of the invention, the threaded rod is driven to screw in or out in the sleeve rod through gear transmission, thereby forcing the inner rods to perform telescopic movement in the outer rods, and then realizes the lifting adjustment of the piano frame, which can satisfy people of different heights use, and it is integrated with the structure of the desk, so that it can be used as an electric piano or as a desk.

A height-adjustable desk-type electric piano is composed of a bracket body and a desk-type keyboard assembly installed on the bracket body, and an adjustment device for the lifting adjustment of the bracket body is arranged on the bracket body; the desk-type keyboard assembly comprises a desk top and a piano keyboard, and the piano keyboard is drawer-connected in the desk top, which can be extended and retracted; in the piano frame of the electric piano of the invention, the threaded rod is driven to screw in or out in the sleeve rod through gear transmission, thereby forcing the inner rods to perform telescopic movement in the outer rods, and then realizes the lifting adjustment of the piano frame, which can satisfy people of different heights use, and it is integrated with the structure of the desk, so that it can be used as an electric piano or as a desk.

A musical instrument includes an exterior member comprising an isotropic fiberboard. The isotropic fiberboard includes a base surface that has a first region and a second region. A surface roughness of the first region differs from a surface roughness of the second region; and a degree of reflection of the first region differs from a degree of reflection of the second region.

A musical instrument includes an exterior member comprising an isotropic fiberboard. The isotropic fiberboard includes a base surface that has a first region and a second region. A surface roughness of the first region differs from a surface roughness of the second region; and a degree of reflection of the first region differs from a degree of reflection of the second region.

A keyboard device includes keys, drive devices, a housing, and a fan. The keys are arranged side by side in a scale direction. The drive devices apply, to the keys, a driving force swinging the key. The housing includes a shelf plate supporting the drive devices. The fan is attached to an upper side of the shelf plate of the housing and exhausts air in the housing to outside. The shelf plate includes an air intake port for sucking in air outside the housing by the fan.

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.