An electronic wind instrument and key operation detection method are provided. The electronic wind instrument includes an instrument body and a plurality of keys which have an operation surface operated by a player's finger and are provided on an external surface of the instrument body. Among the plurality of keys, at least two keys disposed to sandwich or surround a predetermined region comprise restriction parts formed on the operation surfaces. The restriction parts restrict escape of the player's finger from between the at least two keys having the restriction parts formed thereon.

An electronic vibrato system for a stringed instrument comprises an actuator and microcontroller which are disposed within a chassis. The control arm moves the actuator from a resting position to non-resting, rotated positions. The system is below a face of a stringed instrument such that the system has a disposed fulcrum within the instrument. The rotated positions impart resistive forces on said actuator and imparting control signals. The microcontroller processes said control signal and modulates pitch.

An electric musical instrument includes a body and a resonant stack. The resonant stack includes a bridge having a bridge mass and at least a first spring having a first spring constant, in which the first spring is positioned between the bridge and the body. The resonant stack has at least one resonant frequency that is dependent on the bridge mass and the first spring constant. The electric musical instrument includes a plurality of strings that extend across at least a portion of the body, in which each string has a vibrating length defined at least in part by the bridge. The electric musical instrument includes at least a first pickup device to detect vibrations of the strings and generate a first pickup signal, and at least a second pickup device to detect movements of the bridge and generate a second pickup signal.

A track playback controlling apparatus includes at least one operation receiver, a driver, and a processor. The operation receiver receives operation to change a playback state of a track by a user. The driver causes a physical motion of the operation receiver. The processor changes a state of the motion of the operation receiver in response to a change in the playback state of the track through an operation of the operation receiver.

An electronic musical instrument includes an instrument body and a plurality of keys, each of which has an operation surface operated by a player's finger is provided on an external surface of the instrument body. Among the plurality of keys, at least two keys are disposed to be adjacent to each other, and the operation surfaces of the at least two keys are configured to be inclined to descend toward between the at least two keys when viewed from a left-right direction of the electronic musical instrument.

Methods and apparatuses according the present embodiments derive the sound of a Hammond tonewheel organ from the equal-tempered tuning of its tonewheels and drawbar registration design, as well as its vibrato/chorus processing and pickup distortion. In embodiments, as a reverberation effect, the modal processor simulates a room response as the sum of resonant filter responses, providing precise, independent and interactive control over the frequency, damping, and complex amplitude of each mode. As an effects processor, the modal processor provides pitch shifting and distortion by simple manipulations of the mode output sinusoids.

The present invention provides a method and apparatus for controlling a light-emitting device of a digital keyboard musical instrument. The method includes: detecting a touch action generated by a user upon a key of the digital keyboard musical instrument and generating a touch signal, by a sensor placed underneath the key, and transmitting the touch signal to a processor, wherein the touch signal comprises the magnitude information of the touch action; receiving the touch signal and generating a corresponding control signal in accordance with the magnitude information of the touch signal, by the processor; and actuating the light-emitting device to produce a light-emitting effect in accordance with the control signal by the processor. Since the detection of the touch action upon the key by the sensors is accurate enough to capture all details of the complete key-touching action, the light-emitting effect produced based on this more detailed detection of the touch action is more exquisite and accurate.

A track playback controlling apparatus includes at least one operation receiver, a driver, and a processor. The operation receiver receives operation to change a playback state of a track by a user. The driver causes a physical motion of the operation receiver. The processor changes a state of the motion of the operation receiver in response to a change in the playback state of the track through an operation of the operation receiver.

A manual vibrato control device, system and processing arrangement are disclosed. A manual vibrato includes a rotatable shaft, a raised cam section on the shaft, first and second biased collars received on the shaft either side of the cam section, the bias of the first collar being rotationally opposite to the bias of the second collar such that as the shaft rotates in one direction, it receives a return force from the first collar but does not rotate the second collar, and vice versa.

Also disclosed are processing techniques to take the rotational data from rotational sensors, preferably Hall Effect, on the shaft and generate pitch change instructions for a pitch modification device. The mapping is user controllable to produce desired effects and performance.

The present invention provides a method and apparatus for controlling a light-emitting device of a digital keyboard musical instrument. The method includes: detecting a touch action generated by a user upon a key of the digital keyboard musical instrument and generating a touch signal, by a sensor placed underneath the key, and transmitting the touch signal to a processor, wherein the touch signal comprises the magnitude information of the touch action; receiving the touch signal and generating a corresponding control signal in accordance with the magnitude information of the touch signal, by the processor; and actuating the light-emitting device to produce a light-emitting effect in accordance with the control signal by the processor. Since the detection of the touch action upon the key by the sensors is accurate enough to capture all details of the complete key-touching action, the light-emitting effect produced based on this more detailed detection of the touch action is more exquisite and accurate.