A keyboard apparatus includes: a key disposed so as to be pivotable with respect to a frame; a first member, an elastic member being disposed on at least a portion of a surface of the first member; a second member configured to be moved on the elastic member while elastically deforming the elastic member in response to pivotal movement of the key; and a hammer assembly connected to the key via the first member and the second member so as to pivot in response to pivotal movement of the key.

A sound control device includes a selector, a sound signal generator, a switcher, and a controller. The selector is configured to select, based on a user operation, one piece of setting information among a plurality of pieces of setting information including at least one timbre group and one effect setting group. The sound signal generator is configured to generate a sound signal based on performance information and the selected setting information. The switcher configured to switch between a hold-enabled state and a hold-disabled state based on a user operation. The controller configured to control the sound signal generator to generate the sound signal such that in the hold-enabled state, even if the selection of the setting information is switched by the selector, at least the effect setting is maintained.

A sound control device includes a selector, a sound signal generator, a switcher, and a controller. The selector is configured to select, based on a user operation, one piece of setting information among a plurality of pieces of setting information including at least one timbre group and one effect setting group. The sound signal generator is configured to generate a sound signal based on performance information and the selected setting information. The switcher configured to switch between a hold-enabled state and a hold-disabled state based on a user operation. The controller configured to control the sound signal generator to generate the sound signal such that in the hold-enabled state, even if the selection of the setting information is switched by the selector, at least the effect setting is maintained.

According to an embodiment of the present invention, a keyboard apparatus includes a key, a frame, and a connecting portion having a first flexible portion, a second flexible portion serially connected to the first flexible portion between the key and the frame, and a connector for connecting the first flexible portion and the second flexible portion to each other attachably and detachably, the connecting portion turnably connecting the key to the frame by utilizing flexibility of the first flexible portion or the second flexible portion.

According to an embodiment of the present invention, a keyboard apparatus includes a key, a frame, and a connecting portion having a first flexible portion, a second flexible portion serially connected to the first flexible portion between the key and the frame, and a connector for connecting the first flexible portion and the second flexible portion to each other attachably and detachably, the connecting portion turnably connecting the key to the frame by utilizing flexibility of the first flexible portion or the second flexible portion.

A pivot mechanism includes: a shaft portion; a bearing configured to contact the shaft portion at a first contact and a second contact and configured to pivot about a pivot axis relative to the shaft portion; and a supporter secured to the bearing, configured to contact the shaft portion at a third contact, and bendable in a direction different from a direction from the pivot axis toward the third contact.

A pivot mechanism includes: a shaft portion; a bearing configured to contact the shaft portion at a first contact and a second contact and configured to pivot about a pivot axis relative to the shaft portion; and a supporter secured to the bearing, configured to contact the shaft portion at a third contact, and bendable in a direction different from a direction from the pivot axis toward the third contact.

A keyboard apparatus includes: keys; at least one frame configured to support at least one of the keys; at least one bendable portion disposed between one of the keys and the frame and having flexibility in a scale direction; and a coupler configured to couple the bendable portion and the key to each other attachably and detachably. Two couplers each as the coupler which correspond respectively to the keys adjacent to each other are disposed respectively at positions different from each other in a longitudinal direction of the key.

A keyboard apparatus includes: keys; at least one frame configured to support at least one of the keys; at least one bendable portion disposed between one of the keys and the frame and having flexibility in a scale direction; and a coupler configured to couple the bendable portion and the key to each other attachably and detachably. Two couplers each as the coupler which correspond respectively to the keys adjacent to each other are disposed respectively at positions different from each other in a longitudinal direction of the key.

A pivot mechanism includes: a shaft; a bearing including an opening portion in which the shaft is to be inserted, wherein a size of the opening portion at an open end of the bearing which has flexibility is less than a diameter of the shaft, and the bearing is configured to pivot about a pivot axis relative to the shaft; and a stopper disposed spaced apart from the shaft in a direction in which the shaft inserted in the opening portion moves away from the bearing, the stopper being movable in a direction different from the direction in which the shaft moves away from the bearing.