Abstract: A sound source for an electronic percussion instrument and sound production control method thereof are provided. An electronic drum sound source device performs a weighting operation on four pieces of waveform information (pitch envelope, amplitude envelope, start phase) stored in a waveform table according to the beating conditions (hitting point position, velocity) based on the output from a struck sensor of an electronic drum pad. The electronic drum sound source device creates a sine wave on the basis of the waveform information whereon the weighting operation was performed, and generates musical sounds (sounds of percussion instrument) by synthesizing the sine wave with the waveforms of residual waveform data whereon the weighting operation was performed. The sine wave is not synthesized with waveform data other than the residual waveform data, and thus consistent musical sounds with no phase interference can be reproduced.

Abstract: An actuator is provided, including a fixed assembly and a movable assembly. The fixed assembly includes a coil module, a base, a first screwing member, and a linear rail. The first screwing member passes through the base and the linear rail, and the linear rail is positioned on the base. The movable assembly includes a U-shaped back board having an inner space, a first magnetic module, a second magnetic module aligned with the first magnetic module, and a sliding block. The first and second magnetic modules are disposed on the U-shaped back board and accommodated in the inner space. The coil module is disposed between the first magnetic module and the second magnetic module. The sliding block is positioned on the U-shaped back board in the inner space, and slidably connected to the linear rail.

Abstract: Provided is an electronic musical instrument. The electronic musical instrument is configured to generate an internal acoustic signal; generate a sound generation instruction signal; output the sound generation instruction signal to an external sound source configured to generate an external acoustic signal; switch a first state in which the external acoustic signal is generated by the external sound source in response to the sound generation instruction signal, to a second state in which the internal acoustic signal is generated in response to the sound generation instruction signal; and, when the first state is switched to the second state, set a mode of the internal acoustic signal such that the internal acoustic signal is generated with a mode having a predetermined degree of similarity to a mode of the external acoustic signal generated in the first state.

Abstract: An accessory for changing the timbre of a stringed instrument is provided, comprising a body having a vertical opening and a horizontal slot formed in the bottom surface from one edge into the vertical opening; an adjustment rod within the horizontal slot; and a dampener within the vertical opening associated with at least one string of the stringed instrument to which the accessory is attached. The adjustment rod has an upwardly angled inner end within the vertical opening in the body. The dampener comprises a dampener body; a soft fabric covering a top surface; and a bottom surface having a horizontal groove with a downwardly angled top surface matching the angle of the angle of the adjustment rod. Moving the adjustment rod inwardly moves the dampener upward and applies pressure to the string; moving the adjustment rod outwardly moves the dampener downward and reduces the pressure on the string.

Abstract: Provided is a capo that can be operated simply and reliably. A capo includes a pair of arm members (a first arm member and a second arm member) capable of sandwiching a neck, and an electric drive mechanism that changes a distance between the pair of arm members.

Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for training a musical work adaptation quality evaluation model. One of the methods includes: obtaining a plurality of adapted musical work samples; separating audio tracks of each of the plurality of adapted musical work samples; determining instrument information identifying instruments played in each of the audio tracks; performing originality analysis on each of the audio tracks to obtain an originality value corresponding to each audio track; for each of the audio tracks, using a combination of the instrument information and the originality value corresponding to the particular audio track of the adapted musical work samples as a sample feature; and training a musical work adaptation quality evaluation model by using sample features of corresponding adapted musical work samples as input, and a predetermined evaluation score of the corresponding adapted musical work sample as output.

Abstract: A utility article for protecting and covering the strings of a musical instrument, while providing options for visibility and display. The utility article, including a covering member made of flexible material and having a front side and a rear side. Four flaps extend from the left edge and the right edge of the covering member, wherein two flaps extend outwards to form a sleeve and the two flaps extend rearwards wrapping the neck of the musical instrument. The two pockets will serve for holding the users common accessories and tools, while an attachable flap will allow the device to second as a guitar strap when not in its primary use.

Abstract: A lighted pedal board includes a main body and a rotatable lighted arm that can be positioned between a horizontal, resting position and any other angle above the main body. In one embodiment, the arm is upright over a top face of the main body so that light shines on the top face of the pedal board.

Abstract: Provided is a motor apparatus in which an increase in its size in a radial direction of a rotation shaft of a motor can be suppressed while securing redundancy of control of driving of the motor. A motor apparatus includes a motor having a rotation shaft, a first control circuit board where a first power circuit and a first control circuit are mounted, and a second control circuit board where a second power circuit and a second control circuit are mounted. The control circuit boards are arranged with an overlapping portion when viewed along an axial direction on an extension line of an axis of the rotation shaft. The overlapping portion intersects the extension line of the rotation shaft of the motor.

Abstract: An automated music composition and generation system having a system user interface operably connected to an automated music composition and generation engine, and supporting a method of composing a piece of digital music using musical experience descriptors as to indicate what, when and how particular musical events should occur in the piece of digital music to be automatically composed and generated. The method uses the system user interface to select one or more musical experience descriptors and applying the musical experience descriptors along a timeline representation of a piece of digital music to be automatically composed and generated by the automated music composition and generation engine.

Abstract: A stator of a drive motor is provided. The stator includes a stator coil having three phases and four parallels; a stator core having eight poles and 48 slots; a sixth slot being set as a draw out slot of U phase; a ninth slot being set as a draw out slot of V phase; a twelfth slot being set as a draw out slot of W phase; U1, U3, V1, V4, W1 and W4 phases, a winding draw out direction of which is a clockwise direction; and U2, U4, V2, V3, W2 and W3 phases, a winding draw out direction of which is a counter-anticlockwise direction.

Abstract: A low friction tuner for use on stringed musical instruments is described in this application. The low friction tuner transfers the force of string tension from an area between the shoulder of the tuning knob and the tuner housing to a an area between a pointed tuning screw and bearing carrier, reducing the amount of force needed to turn the tuning knob when the string is under tension.

Abstract: Drum pedal systems are disclosed which can include separate pedal and beater portions connected by a connecting portion. The connecting portion can be flexible such that the location of the beater portion can be adjusted relative to the location of the pedal portion. The pedal and beater portions can be disconnected from one another for improved transportability. Direct drive pedal systems are also disclosed, which can include separate pedal and beater portions connected by a direct drive connecting portion having rigid connections.

Abstract: An electric motor includes a stator; an annular end cap, fastened at a first end of the stator; a threaded seat that is mounted at an outward end face of the annular end cap for receiving a first gas foil thrust bearing; a shaft, inserted through the stator, through the annular end cap, and through the threaded seat; a thrust runner mounted at an end of said shaft adjacent the threaded seat; a first gas foil thrust bearing that is mounted into the threaded seat, adjacent a face of the thrust runner facing the stator; a bearing cap that has a threaded fitting by which it is attached onto the threaded seat; and a second gas foil thrust bearing that is mounted into the bearing cap adjacent to a face of the thrust runner opposite the first gas foil thrust bearing.

Abstract: The present invention is a permanent magnet synchronous submersible motor comprised of a motor stator and a rotor core. The motor stator includes a stator core formed by laminating a plurality of stator punching sheets. Each of the stator punching sheets is provided with an odd number of stator slots and any two of a X-phase coil, a Y-phase coil and a Z-phase coil are wound in each of the stator slots. The rotor core is formed by laminating a plurality of rotor punching sheets wherein each of the rotor punching sheets is provided with rotor slots and a permanent magnet inserted into each of the rotor slots. Furthermore, the permanent magnet submersible motor can be started with a conventional V/F controlled (variable frequency) converter.

Abstract: A musical instrument utility harness includes a utility harness for bearing the weight of a standard shoulder strap worn musical instrument on the core of the body while providing a means for accessing and fastening related accessories and adaptations, while providing a lateral stability strap assembly for dynamic lateral support and stability, while allowing complete hands free operation of the supported instrument. A holding strap inversion assembly for allowing the unhampered operation of control potentiometers and the like on electric instruments.

Abstract: A motor is disclosed. The motor includes a first end bell, a second end bell and a stator with a stator coil disposed between the first end bell and the second end bell. A rotor with a rotor shaft is disposed relative to the stator, the rotor configured to rotate relative to the stator and the rotor shaft extending through the first end bell. The second end bell includes a chamber, the chamber includes an electronic circuit and a connector. The connector is electrically coupled to the electronic circuit and configured to receive both a control signal and a power signal from an external source.

Abstract: An apparatus is provided. The apparatus includes a bidirectional comb drive actuator. The apparatus may also include a cantilever. The cantilever includes a first end connected to the bidirectional comb drive actuator and a second end connected to an inner frame. In addition, the cantilever may include first and second conductive layers for routing electrical signals. Embodiments of the disclosed apparatuses, which may include multi-dimensional actuators, allow for an increased number of electrical signals to be routed to the actuators. Moreover, the disclosed apparatuses allow for actuation multiple directions, which may provide for increased control, precision, and flexibility of movement. Accordingly, the disclosed embodiments provide significant benefits with regard to optical image stabilization and auto-focus capabilities, for example in size- and power-constrained environments.

Abstract: A percussion device includes a drumstick assembly. The drumstick assembly includes a drumstick having a base and a tip end, and a drumstick tip secured to the tip end of the drumstick, the drumstick tip including a sensor. The drumstick including the base thereof, and includes at least one control button, a communication element, and a processor in communication with the at least one control button, the drumstick tip and the communication element. The processor is configured to receive a signal from the drumstick tip and to generate output to the communication element. The output so generated includes a signal that specifies a sound file selected by operation of the at least one control button.

Abstract: A snare drum including a self-alignment component is disclosed. The self-alignment component may be engaged by a tensioning band, which can attach to one end of a snare that contacts or is proximate a bottom drum head. The tensioning band may loop around a part of the self-alignment component, such as an alignment piece thereof. The geometry of the self-alignment component is designed to allow the tensioning band to self-align such that portions on opposing sides of the alignment piece have approximately equal tension therein and/or have approximately equal length, thus allowing for a properly aligned snare on the bottom drum head. The self-alignment component can include a plate portion attached to a drum sidewall or tensioning device on a drum sidewall, and can further include a cover portion for attachment to the plate portion.