Musical instrument controller, electronic musical instrument system, and control method thereof

An electronic musical instrument system comprising a musical performance device and a controller,

• wherein the musical performance device includes a transmission means that transmits a sound emission start signal to the controller on the basis of a musical performance operation,
• wherein the controller includes:
• a sensor that detects an amount of displacement from a reference position;
• and
• a control means that generates a control signal on the basis of the amount of displacement from the reference position and transmits the control signal to a sound generation device, and
• wherein the control means sets the reference position on the basis of the sound emission start signal which is received from the musical performance device,
• wherein the sensor is a triaxial acceleration sensor, and
• wherein the amount of displacement from the reference position is a value indicating an amount of inclination from a predetermined posture.

A control method that is performed by a musical instrument controller which includes a sensor, the control method comprising:

• a reception step of receiving a sound emission start signal which is transmitted on the basis of a musical performance operation from a musical performance device;
• an acquisition step of acquiring information for detecting an amount of displacement from a reference position;
• and
• a control step of generating a control signal on the basis of the amount of displacement from the reference position and transmitting the control signal to a sound generation device,
• wherein the control step includes setting the reference position on the basis of the sound emission start signal which is received from the musical performance device,
• wherein the sensor is a triaxial acceleration sensor, and
• wherein the amount of displacement from the reference position is a value indicating an amount of inclination from a predetermined posture.

A control method that is performed by a musical performance device and a controller which includes a sensor,

• wherein the musical performance device performs a transmission step of transmitting a sound emission start signal to the controller on the basis of a musical performance operation,
• wherein the controller performs a control step of acquiring information for detecting an amount of displacement from a reference position, generating a control signal on the basis of the amount of displacement from the reference position, and transmitting the control signal to a sound generation device, and
• wherein the control step includes setting the reference position on the basis of the sound emission start signal which is received from the musical performance device,
• wherein the sensor is a triaxial acceleration sensor, and
• wherein the amount of displacement from the reference position is a value indicating an amount of inclination from a predetermined posture.