An electronic musical instrument includes: a plurality of keys; a detection part, detecting, by a plurality of detectors provided for each of the keys, a state of depression or release of the key; a musical tone controller, controlling a musical tone according to the state of the key detected by the detection part; a scanning part, sequentially executing detection of the state of the key by the detection part for each of the keys; an operation key acquisition part, acquiring the key that is in the middle of being depressed or being released based on a detection result obtained by the detection part; and a priority part, giving priority to the detection of the state of the key acquired by the operation key acquisition part by the detection part in the scanning part.

An automatic musical performance device includes: a storage part, storing musical performance patterns; a musical performance part, performing musical performance on the basis of the musical performance patterns stored in the storage part; an input part, to which musical performance information is input a setting part, setting a mode as to whether to switch the musical performance; a selection part, selecting a musical performance pattern estimated to have a maximum likelihood among the musical performance patterns stored in the storage part on the basis of the musical performance information input to the input part when a mode of switching the musical performance by the musical performance part is set by the setting part; and a switching part, switching at least one musical expression of the musical performance pattern played by the musical performance part to a musical expression of the musical performance pattern selected by the selection part.

An automatic musical performance device includes: a storage part, storing musical performance patterns; a musical performance part, performing musical performance on the basis of the musical performance patterns stored in the storage part; an input part, to which musical performance information is input a setting part, setting a mode as to whether to switch the musical performance; a selection part, selecting a musical performance pattern estimated to have a maximum likelihood among the musical performance patterns stored in the storage part on the basis of the musical performance information input to the input part when a mode of switching the musical performance by the musical performance part is set by the setting part; and a switching part, switching at least one musical expression of the musical performance pattern played by the musical performance part to a musical expression of the musical performance pattern selected by the selection part.

A sensing system for a keyboard. Each key sensor comprises passive and active resonant circuits. The passive resonant circuit has a resonant frequency and the active resonant circuit excites the passive resonant circuit at the resonant frequency. A sensor driver drives the active resonant circuit with an RF drive signal, a multiplexing system multiplexes the drive signal such that simultaneously driven key sensors are separated by at least (k−1) keys, and a detector detects a level of RF signal from a driven key sensor for sensing a position and/or velocity of a key.

In a performance operator group, a partial region including at least one first performance operator and at least one second performance operator is set as a first key region. An allocator allocates musical sound data to the first key region. An operation detector detects an operation using each of the plurality of first and second performance operators of the performance operator group. A reproduction controller carries out first control relating to a reproduction method of the allocated musical sound data in response to detection of an operation using one of the first and second performance operators in the first key region, and carries out second control relating to the reproduction method of the allocated musical sound data and being different from the first control in response to detection of an operation using another one of the first and second performance operators in the first key region.

A sustaining device is described for prolonging the vibration of the strings of a stringed musical instrument, such as an electric guitar having two or three electromagnetic pickups. The pickups are all low impedance transducers that can function either as pickups or driver transducers, depending on whether they are connected to the input of the instrument pickup amplifier or to the output of the sustainer amplifier, respectively. When a transducer is being used as a sustainer driver, it cannot be simultaneously used as a pickup. Different methods of selecting transducers to function as pickups or drivers are described. The transducers, having only hundreds of wire turns instead of the usual thousands of turns for common pickups, have a flat audio frequency response that can be modified to produce a multitude of common pickup sounds by manipulating the transducer resonance frequency, bandwidth, and amplifier gain.

A musical sound producing apparatus includes a plurality of keys, a sound production information generator that generates sound production information for producing a musical sound based on a first key operation on any key among the plurality of keys, a control information generator that generates control information for controlling, on the basis of a second key operation different from the first key operation, a mode of the musical sound produced on the basis of the first key operation, and a musical sound signal generator that generates a musical sound signal on the basis of the sound production information and the control information.

An apparatus for generating an audio output signal having two or more audio output channels from an audio input signal having two or more audio input channels includes a provider and a signal processor. The provider is adapted to provide first covariance properties of the audio input signal. The signal processor is adapted to generate the audio output signal by applying a mixing rule on at least two of the two or more audio input channels. The signal processor is configured to determine the mixing rule based on the first covariance properties of the audio input signal and based on second covariance properties of the audio output signal, the second covariance properties being different from the first covariance properties.

A keyboard device is provided including a chassis; a mass body which is turnably installed in the chassis; and transmission means which transmits a driving force in response to key touching of a key to the mass body, wherein the mass body includes an inner wheel and an outer wheel installed on a radially outward side of the inner wheel and is configured to serve as a component for transmitting a torque in one-way direction between the inner wheel and the outer wheel. The transmission means is engaged with one of the inner wheel and the outer wheel of the mass body. The torque is transmitted between the inner wheel and the outer wheel of the mass body at a time of key touching. The torque is not transmitted between the inner wheel and the outer wheel of the mass body at a time of key release.

Systems and methods for onboard, real-time pickup blending for electric guitars/basses may utilize every possible tonal combination that double coil pickups can offer. The industry standard pickup toggle switch may be removed from electric guitar/bass instruments. Instead of a user being limited to only using one pickup at a time to be selected, the user may mix in any combination of the pickups (top, bottom, or both) at any time. Accordingly, multiple pickups can be on at the same time and/or the user may blend in (or out) any percentage of any of the pickups that the user wishes to create a large combination of tones.