Disclosed is a learning model generation method executed by a computer, including: striking a percussion instrument with a striking member to emit a musical sound; and conducting machine learning upon receiving an input of the musical sound emitted from the percussion instrument, and generating, based on the machine learning, a learning model for outputting numerical values for setting musical performance parameters for an automatic musical performance of the percussion instrument that is struck when the striking member is driven.

A percussion-instrument playing apparatus for playing a percussion instrument having a striking surface. The apparatus includes: a main body to be mounted on the percussion instrument 100 to face the striking surface of the percussion instrument with a predetermined space from the striking surface; an arm supporter attached to the main body; an arm that has, at a distal end, an arm head, and is rotatably supported by the arm supporter; a drive device that allows the arm to be rotationally displaced between a state where the arm head pushes the striking surface of the percussion instrument and a state where the arm head is separated from the striking surface; a control device that controls the drive device in accordance with a control program; and an operation device that outputs a drive instruction signal to the control device in response to an operation by a user.

A percussion-instrument playing apparatus for playing a percussion instrument having a striking surface. The apparatus includes: a main body to be mounted on the percussion instrument 100 to face the striking surface of the percussion instrument with a predetermined space from the striking surface; an arm supporter attached to the main body; an arm that has, at a distal end, an arm head, and is rotatably supported by the arm supporter; a drive device that allows the arm to be rotationally displaced between a state where the arm head pushes the striking surface of the percussion instrument and a state where the arm head is separated from the striking surface; a control device that controls the drive device in accordance with a control program; and an operation device that outputs a drive instruction signal to the control device in response to an operation by a user.

A percussion-instrument playing apparatus for playing a percussion instrument having a striking surface. The apparatus includes: a main body to be mounted on the percussion instrument 100 to face the striking surface of the percussion instrument with a predetermined space from the striking surface; an arm supporter attached to the main body; an arm that has, at a distal end, an arm head, and is rotatably supported by the arm supporter; a drive device that allows the arm to be rotationally displaced between a state where the arm head pushes the striking surface of the percussion instrument and a state where the arm head is separated from the striking surface; a control device that controls the drive device in accordance with a control program; and an operation device that outputs a drive instruction signal to the control device in response to an operation by a user.

A musical sound generator is provided including a tube defining a resonant cavity, the tube having a plurality of sound producing chimes configured to produce an audible sound when at least one object impacts on at least one of the chimes; a reservoir configured to hold a number of objects; and a transfer mechanism configured to transfer the objects from the reservoir to an elevated position within the resonant cavity, wherein the objects fall down from the elevated position within the resonant cavity by gravity after being transferred by the transfer mechanism, to strike the plurality of sound producing chimes; and wherein the position of the reservoir is configured to be moved depending on the level of the objects held in the reservoir.

A musical sound generator is provided including a tube defining a resonant cavity, the tube having a plurality of sound producing chimes configured to produce an audible sound when at least one object impacts on at least one of the chimes; a reservoir configured to hold a number of objects; and a transfer mechanism configured to transfer the objects from the reservoir to an elevated position within the resonant cavity, wherein the objects fall down from the elevated position within the resonant cavity by gravity after being transferred by the transfer mechanism, to strike the plurality of sound producing chimes; and wherein the position of the reservoir is configured to be moved depending on the level of the objects held in the reservoir.

A watch including a timepiece striking mechanism, including a drive mechanism for driving and controlling the striking mechanism to operate at least one rigid hammer, movable between a first winding position and a second striking position, the hammer being arranged to strike a gong in the second striking position, this hammer including at least one magnetized portion arranged to cooperate with at least one actuator arranged to be driven in motion by the drive mechanism, the actuator including an alternating series of first areas and second areas with different magnetic field characteristics from each other, to whose influence the magnetized portion is successively subjected on order to trigger, as the case may be, the winding of the hammer or the striking of the hammer on the gong.

A musical sound generator is provided including a tube defining a resonant cavity, the tube having a plurality of sound producing chimes configured to produce an audible sound when at least one object impacts on at least one of the chimes; a reservoir configured to hold a number of objects; and a transfer mechanism configured to transfer the objects from the reservoir to an elevated position within the resonant cavity, wherein the objects fall down from the elevated position within the resonant cavity by gravity after being transferred by the transfer mechanism, to strike the plurality of sound producing chimes; and wherein the position of the reservoir is configured to be moved depending on the level of the objects held in the reservoir.

A musical sound generator is provided including a tube defining a resonant cavity, the tube having a plurality of sound producing chimes configured to produce an audible sound when at least one object impacts on at least one of the chimes; a reservoir configured to hold a number of objects; and a transfer mechanism configured to transfer the objects from the reservoir to an elevated position within the resonant cavity, wherein the objects fall down from the elevated position within the resonant cavity by gravity after being transferred by the transfer mechanism, to strike the plurality of sound producing chimes; and wherein the position of the reservoir is configured to be moved depending on the level of the objects held in the reservoir.