Patent ID: 7608772

Claim:
A black key for a keyboard instrument, comprising: a key body in an elongate bar shape that extends in a front-rear direction and is swingable, the body lacking the visible, black, playable part of the key that protrudes above the plane of the white keys, when installed; a black key cover body providing the visible, black, playable part of the key that protrudes above the plane of the white keys, the key cover body formed into a hollow shape opening downward and mounted on a front portion of an upper surface of said key body in a manner covering the front portion; and a weight that is received in said black key cover and adds weight to said key body, wherein said black key cover body as a lower wall protruding inward from a lower edge portion of at least one of the left and right side walls partially covering the said hollow shape, for holding said weight from below, said lower surface having a lower surface bonded to said key body.