Abstract: An impact detection device includes: a body configured to be struck; a vibration sensor that detects vibration of the body; a support base that supports the vibration sensor; a first elastic body sandwiched between the vibration sensor and the body; and a second elastic body sandwiched between the vibration sensor and the support base. A dimension of each of the first elastic body and the second elastic body is smaller than a dimension of the vibration sensor when viewed from an arrangement direction in which the first elastic body, the vibration sensor, and the second elastic body are arranged.

Abstract: A sound damping device includes a sound damper and a support member. The sound damper includes a contact surface configured to contact a vibration member and includes a through-hole having a first opening formed on the contact surface. The support member is coupled to the sound damper to support the sound damper and cause the vibration member and the contact surface to come into contact with each other. The support member includes an air hole that is connected to the through-hole of the sound damper and that penetrates through the support member.

Abstract: An impact detection device includes: a body configured to be struck; a vibration sensor that detects vibration of the body; a support base that supports the vibration sensor; a first elastic body sandwiched between the vibration sensor and the body; and a second elastic body sandwiched between the vibration sensor and the support base. A dimension of each of the first elastic body and the second elastic body is smaller than a dimension of the vibration sensor when viewed from an arrangement direction in which the first elastic body, the vibration sensor, and the second elastic body are arranged.

Abstract: A sound damping device includes a sound damper and a support member. The sound damper includes a contact surface configured to contact a vibration member and includes a through-hole having a first opening formed on the contact surface. The support member is coupled to the sound damper to support the sound damper and cause the vibration member and the contact surface to come into contact with each other. The support member includes an air hole that is connected to the through-hole of the sound damper and that penetrates through the support member.

Abstract: A sensor unit, which is used for detecting a vibration of an object that is supported by a stand, comprises: a sensor board having a contact area that is configured to contact a lower surface of the object; a sensor that is configured to detect a vibration of the object and is fixed to the sensor board; a bearing that is fixed to the sensor board and has a through-hole; and a base that has a shaft that is inserted in the through-hole of the bearing. An outer configuration of the through-hole of the bearing is structured to substantially correspond to an outer configuration of the shaft of the base.

Abstract: Performance information of a music performance executed by a user is received, and temporarily stored into a buffer for each given time period. The performance information is recorded into a recording section in response to a recording instruction by the user. Second performance information having a definite time period is reproduced repeatedly, and the user ad-libs a desired musical performance while listening to the repeatedly reproduced tones of the second performance information. The given time period is set to coincide with the definite time period of the second performance information. Temporarily-stored performance information for the given time period is recorded in one of a plurality of recording tracks. In response to a plurality of user's recording instructions, a plurality of different segments of performance information for the given time period are recorded into respective ones of the recording tracks, and these different segments are reproduced repeatedly in synchronized fashion.

Abstract: A sensor unit, which is used for detecting a vibration of an object that is supported by a stand, comprises: a sensor board having a contact area that is configured to contact a lower surface of the object; a sensor that is configured to detect a vibration of the object and is fixed to the sensor board; a bearing that is fixed to the sensor board and has a through-hole; and a base that has a shaft that is inserted in the through-hole of the bearing. An outer configuration of the through-hole of the bearing is structured to substantially correspond to an outer configuration of the shaft of the base.

Abstract: A mounting device for a cymbal type percussion instrument, the cymbal type percussion instrument which includes at least one cymbal that is supported on a support, the mounting device includes: a mounting member which is mounted in at least two different positions on the cymbal type percussion instrument, the mounting member which is configured to suppress motion of the cymbal when the mounting member is mounted in the at least two different positions on the cymbal type percussion instrument so as to hold a position of the mounting member relative to the cymbal.

Abstract: Performance information of a music performance executed by a user is received, and temporarily stored into a buffer for each given time period. The performance information is recorded into a recording section in response to a recording instruction by the user. Second performance information having a definite time period is reproduced repeatedly, and the user ad-libs a desired musical performance while listening to the repeatedly reproduced tones of the second performance information. The given time period is set to coincide with the definite time period of the second performance information. Temporarily-stored performance information for the given time period is recorded in one of a plurality of recording tracks. In response to a plurality of user's recording instructions, a plurality of different segments of performance information for the given time period are recorded into respective ones of the recording tracks, and these different segments are reproduced repeatedly in synchronized fashion.

Abstract: A percussion surface apparatus includes: a head which is formed by rubber, and which includes a front surface and a back surface, the front surface which functions as a percussion surface; a cushion member which includes: a first layer that is butted against the back surface of the head, and that is formed by a fiber-based non-woven fabric; and a second layer that is adjacent to the first layer, and that is formed by a porous urethane material; and a supporting unit which is configured to fix and support the cushion member in a state where the cushion member is butted against the back surface of the head at a pressure.

Abstract: A percussion surface apparatus includes: a head which is formed by rubber, and which includes a front surface and a back surface, the front surface which functions as a percussion surface; a cushion member which includes: a first layer that is butted against the back surface of the head, and that is formed by a fiber-based non-woven fabric; and a second layer that is adjacent to the first layer, and that is formed by a porous urethane material; and a supporting unit which is configured to fix and support the cushion member in a state where the cushion member is butted against the back surface of the head at a pressure.

Abstract: A mounting device for a cymbal type percussion instrument, the cymbal type percussion instrument which includes at least one cymbal that is supported on a support, the mounting device includes: a mounting member which is mounted in at least two different positions on the cymbal type percussion instrument, the mounting member which is configured to suppress motion of the cymbal when the mounting member is mounted in the at least two different positions on the cymbal type percussion instrument so as to hold a position of the mounting member relative to the cymbal.