An electronic musical instrument according to one embodiment includes: a sound source configured to generate a first sound signal and a second sound signal in accordance with an instruction signal for instructing to produce a sound; a first output unit configured to output a third sound signal containing the first sound signal and the second sound signal at a first sound volume ratio; and a second output unit configured to output a fourth sound signal containing the first sound signal and the second sound signal at a second sound volume ratio that is different from the first sound volume ratio.

For each sound of a model performance, performance information designating a sound generation timing and sound and intensity information indicative of an intensity of the sound are supplied. In accordance with a progression of a performance time and for each sound of the model performance, the intensity information is acquired ahead of the sound generation timing, and the intensity of the sound is presented based on the acquired intensity information. The intensity of the sound is presented in a visual or audible manner. In this way, a human player who receives sound-intensity-related performance operation training can know, through a visual display and/or an audible sound, an intensity of each sound of the model performance before the sound generation timing of the sound. As a result, the human player can practice the performance while being aware of the intensity of each sound of the model performance.

An electronic music keyboard having a plurality of keys, a number of magnetic sensors equal to the number of keys, a magnet disposed in each key, an A/D converter connected to each magnetic sensor, a microcontroller connected to the A/D converters and configured to receive digital values indicative of the key position and convert them into key position values and select useful key position values at which to emit sounds, a digital signal processor (DSP) connected to the microcontroller and configured to receive the useful key position values and accordingly emit at least one sound signal and an electroacoustic transducer connected to the DSP and configured to receive at least one sound signal and accordingly generate a music sound.

A signal supply device according to an embodiment of the present invention includes a generator configured to generate a first sound signal and a second sound signal in accordance with an instruction signal including operation body information corresponding to an operation input to an operation body and linked member information corresponding to a movement of a linked member linked with the operation body and an adjuster configured to adjust a relationship between the first sound signal and the second sound signal on the basis of the operation body information and the linked member information.

A signal supply device according to an aspect of the present invention includes a generator configured to generate a first sound signal and a second sound signal in accordance with an instruction signal corresponding to an operation input to an operation body and an adjuster configured to calculate an acceleration of the operation body in accordance with the instruction signal and to adjust a relationship between the first sound signal and the second sound signal on the basis of the acceleration.

A method and corresponding system for providing a depressed state signal from a keyboard or button. The method comprises sensing movement of an actuator of the keyboard or button, determining, during depression of the actuator, a velocity of the actuator at a depression sense position of the actuator and at a first time, processing the determined velocity to predict when the actuator will reach a second depression sense position of the actuator at a later point during depression of the actuator, and generating the depressed state signal with a timing based on the prediction of when the actuator will reach the second depression sense position. A complementary method and system provides a released state signal.

An automatic performance device includes: a pattern storage part, storing a plurality of performance patterns; a performing part, performing a performance based on the performance pattern stored in the pattern storage part; an input part, inputting performance information from an input device; a rhythm detection part, detecting a rhythm from the performance information inputted by the input part; an acquisition part, acquiring from among the plurality of performance patterns stored in the pattern storage part the performance pattern corresponding to the rhythm detected by the rhythm detection part; and a switching part, switching the performance pattern being performed by the performing part to the performance pattern acquired by the acquisition part.

A sound signal generation method for a keyboard including a pedal and a key, the method according to an embodiment of the present disclosure comprises generating a first sound signal and a second sound signal different from the first sound signal based on first operation data corresponding to an operation of the key, and adjusting a relationship between the first sound signal and the second sound signal to sound at respective timings according to a physical quantity of a key pressing operation of the key to control a decay rate of the first sound signal to be different from a decay rate of the second sound signal based on a key release operation of the key.

A first contact and a second contact are provided at each of a plurality of keys, and are successively closed in accordance with a key press operation. On the basis of respective closed sense signals from the first contact and the second contact, a duration from when the first contact is closed until the second contact is closed is counted as a first count value and then a duration after this counting has ended is counted as a second count value. An attainment duration value and the second count value are compared, and when a predetermined condition is satisfied, a control signal is outputted. When this control signal is received, sound emission information instructing an emission of a sound by a sound emission controller is sent. The sound emission information includes touch information based on the first count value.

For each sound of a model performance, performance information designating a sound generation timing and sound and intensity information indicative of an intensity of the sound are supplied. In accordance with a progression of a performance time and for each sound of the model performance, the intensity information is acquired ahead of the sound generation timing, and the intensity of the sound is presented based on the acquired intensity information. The intensity of the sound is presented in a visual or audible manner. In this way, a human player who receives sound-intensity-related performance operation training can know, through a visual display and/or an audible sound, an intensity of each sound of the model performance before the sound generation timing of the sound. As a result, the human player can practice the performance while being aware of the intensity of each sound of the model performance.