An action repair apparatus that grips and suspends above the action, case, and/or cabinet of the instrument having paneling disposed on the outer framework to be repositioned on various x, y, and z-axis points by various mechanisms.

An action repair apparatus that grips and suspends above the action, case, and/or cabinet of the instrument having paneling disposed on the outer framework to be repositioned on various x, y, and z-axis points by various mechanisms.

A topboard reflection preventer for a grand piano, which is capable of positively preventing lighting from being reflected by an open topboard, while maintaining excellent appearance of a piano body. The topboard reflection preventer for a grand piano is attached to an openable and closable topboard formed by a topboard rear and a topboard front, and prevents lighting from above from being reflected by the topboard in a state of the topboard held open in an inclined position. The topboard reflection preventer includes a reflection preventer body attached to the topboard rear and the topboard front folded onto the topboard rear, in a state covering whole upper surfaces of the topboard rear and the topboard front, and a holding member for holding the reflection preventer body so as to prevent the reflection preventer body from falling off the topboard held open in the inclined position.

An automatic playing system may include a damper module for changing a sound generated by the automatic playing system. The damper module may include a damper board, a motion driver, and a supporter. The damper board may be configured to control at least one damper of the automatic playing system. The motion driver may be configured to drive the damper board and operated to perform at least one automatic playing function. The supporter may be configured to couple the damper board with the motion driver when the motion driver is operated.

A fastening structure for fastening a to-be-fastened component to a wooden component by using a screw, wherein the wooden component is made of wood having a specific gravity of 0.08 g/cm.sup.3 to 0.85 g/cm.sup.3 inclusive, the screw has a nominal diameter of 0.8 mm to 3.5 mm inclusive, and the distance between a neutral position in a longitudinal direction of an effective screw part, which is the portion where the wooden component and a male screw part formed in a shaft part of the screw mesh together, and the surface of the wooden component that comes into contact with the to-be-fastened component is 1 mm to 15 mm inclusive.

A tool for fitting to a tuning pin of an instrument for inhibiting movement of the tuning pin. The tool comprises a tuning pin engaging portion comprising a through hole for engaging a tuning pin and one or more flexible resilient arms extending from the tuning pin engaging portion. The one or more flexible resilient arms configured, in use, to engage with other tuning pins adjacent to the tuning pin, and/or with the strings attached thereto, to inhibit movement of the tuning pin.

A tool for fitting to a tuning pin of an instrument for inhibiting movement of the tuning pin. The tool comprises a tuning pin engaging portion comprising a through hole for engaging a tuning pin and one or more flexible resilient arms extending from the tuning pin engaging portion. The one or more flexible resilient arms configured, in use, to engage with other tuning pins adjacent to the tuning pin, and/or with the strings attached thereto, to inhibit movement of the tuning pin.

A topboard reflection preventer for a grand piano, which is capable of positively preventing lighting from being reflected by an open topboard, while maintaining excellent appearance of a piano body. The topboard reflection preventer for a grand piano is attached to an openable and closable topboard formed by a topboard rear and a topboard front, and prevents lighting from above from being reflected by the topboard in a state of the topboard held open in an inclined position. The topboard reflection preventer includes a reflection preventer body attached to the topboard rear and the topboard front folded onto the topboard rear, in a state covering whole upper surfaces of the topboard rear and the topboard front, and a holding member for holding the reflection preventer body so as to prevent the reflection preventer body from falling off the topboard held open in the inclined position.

A musical instrument keyboard alignment tool comprises a central member having defined therein a slot dimensioned to receive a key stop member of an electronic musical instrument keyboard, at least one handle extending from the central member, and an elongate foot extending from the central member. A distance between the bottom of the slot to the bottom surface of the foot corresponds to a calibration distance from the bottom of a key stop to a reference portion of the key bed of a keyboard. The described tool and methods of use significantly reduces the time required to perform a complete key stop alignment of an electronic musical instrument keyboard.

A musical instrument keyboard alignment tool comprises a central member having defined therein a slot dimensioned to receive a key stop member of an electronic musical instrument keyboard, at least one handle extending from the central member, and an elongate foot extending from the central member. A distance between the bottom of the slot to the bottom surface of the foot corresponds to a calibration distance from the bottom of a key stop to a reference portion of the key bed of a keyboard. The described tool and methods of use significantly reduces the time required to perform a complete key stop alignment of an electronic musical instrument keyboard.