Abstract: A multi-stringed musical instrument, such as a guitar, having a neck with a partially hollow interior containing a number of linear actuators, each connected to a fret which projects proud of the neck and is in contact with a taught string, wherein the linear actuators are controlled by means of a user-selected input signal via functional communication with a small control panel, tablet, smartphone, computer or laptop.

Abstract: An automated music composition and generation system having an automated music composition and generation engine for processing musical experience descriptors and space parameters selected by the system user. The engine includes: a user taste generation subsystem for automatically determining the musical tastes and preferences of each system user based on user feedback and autonomous piece analysis, and maintaining a system user profile reflecting musical tastes and preferences of each system user; and a population taste aggregation subsystem for aggregating the musical tastes and preferences of the population of system users, and modifying the musical experience descriptors and/or time and/or space parameters provided to the automated music composition and generation engine, so that the digital pieces of composed music better reflect the musical tastes and preferences of the population of system users and meet future system user requests for automated music compositions.

Abstract: A plectrum sheath made of a rigid material designed to retain a single plectrum, having a thin wide opening at the top and a closure at the bottom. Two clip springs are built into the device due to the nature of its fabrication. These clip springs provide downward spring tension that holds a plectrum firmly in place once the plectrum is fully inserted into the plectrum sheath.

Abstract: The embodiments described herein relates to the field of musical instrumentation and associated equipment. More specifically, the embodiments pertain to a pedal board and system that manages equipment associated with electric guitars as well as other musical instruments, namely foot-controlled and floor-located devices, such as special effect devices and foot pedals. The pedal board of the embodiments provides external viewability of the equipment and can include an illuminated display assembly.

Abstract: An electric motor includes a front housing positioned on a load side and including an annular groove in an inner surface of the front housing, a winding wound around a stator core and including a coil end projecting forward from the stator core and disposed in the annular groove, and a heat conductive resin filled in the annular groove and configured to be in contact with both the coil end and the front housing.

Abstract: 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.

Abstract: An adjustable action for an electric piano is provided with a keystick having an adjustable bottom capstan at an end thereof opposite the key, which is adjustable so that the rest position of the hammer of each such key may be independently adjusted, and an adjustable top capstan and hammer jack on the top of the keystick, which may be adjusted so that the stop-lock (depressed key) position of the hammer of each such key may be independently adjusted.

Abstract: An improved alternator system for an electric vehicle. The system includes a magnetic connector attached to a rim of a vehicle wheel. The magnetic connector is connected to a magnetic bar. The magnetic bar increases the magnetic field produced by the magnetic connector. The magnetic bar is magnetically connected to a rotator located within an alternator. As the rim rotates the magnetic bar will be rotated causing the rotator within the alternator to rotate. This will engage the alternator to produce power.

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 device for use in combination with a musical snare drum for altering the sounds produced consisting of a means for affixing the device to the drum, such as a bracket assembly, mounted on the upper and lower rims of the drum, connected to the bracket assembly is a flexible banding which extends around the top, sides, and bottom of the drum and is attached in a manner that allows for ease of movement along the long axis of the banding so that it can be adjusted by sliding along said axis, a muffler component composed of a felt pad or other suitable material is affixed to the flexible banding and positioned on the bottom of the drum in a manner that provides for the muffler to be repositioned at varying degrees of contact with the snares by advancing or retracting the banding so as to alter the tonal output.

Abstract: The teachings described herein are generally directed to a system, method, and apparatus for separating and mixing tracks within music. The system can have a video that is synchronized with the variations in the musical tempo through a variable timing reference track designed and provided for a user of the preselected performance that was prerecorded, wherein the designing of the variable timing reference track includes creating a tempo map having variable tempos, rhythms, and beats using notes from the preselected performance.

Abstract: Systems, devices, and methods for encoding the harmonic structure of a musical composition in a digital data structure are described. Tonal and rhythmic commonalities are identified across the musical bars that make up a musical composition. Individual bars of the musical composition are each analyzed to characterize their respective harmonic fingerprints in various forms, and the respective harmonic fingerprints are compared to sort the musical bars into harmonic equivalence categories. Isomorphic mappings between hierarchical data structures that encode the musical composition based on musicality and harmony, respectively, are also described. The systems, devices, and methods for encoding the harmonic structure of a musical composition in a digital data structure have broad applicability in computer-based composition and variation of music.

Abstract: A driving assembly includes a motor bracket, a first driving motor arranged on the motor bracket, a spherical crank, and a second driving motor arranged on the motor bracket and spaced apart from the first driving motor. The spherical crank includes a connecting pillar and a ball head. One end of the connecting pillar is connected with an output shaft of the first driving motor. The ball head is arranged at another end of the connecting pillar. A sphere center of the ball head is not on a rotation axis of the connecting pillar. The second driving motor includes an output shaft arranged at a first end of the second driving motor and configured to be connected with a fan blade. A second end of the second driving motor is rotatably connected with the ball head.

Abstract: A digital-to-analog conversion device which performs integration processing for integrating a difference between an input signal and a first return signal generated based on the input signal, and outputting an integration result, first quantization processing for quantizing the integration result, and outputting a first quantization signal, first return signal output processing for outputting the first return signal by adding to the first quantization signal a correction value delay signal acquired by a correction value signal outputted based on the integration result being delayed, and output processing for outputting output signals including a signal whose pulse width is asymmetrical to center of a processing period, based on the first quantization signal, in which the correction value signal includes a signal indicating a correction value for correcting a difference between a center of the pulse width asymmetrical to the center of the processing period and the center of the processing period.

Abstract: Disclosed is a tuning guide for tuning a brass musical instrument having a tuning slide. The tuning guide includes (1) visual markings provided along one arm of the tuning slide indicating a plurality of tuning positions of the tuning slide and (2) a tuning log for logging a tuning history specific to both the instrument and a particular player of the instrument. The tuning log includes a plurality of tuning records, each tuning record including (i) one or more conditions fields, each conditions field for recording an environmental condition and (ii) a tuning position field for specifying a tuning position at which the instrument is properly tuned under the environmental conditions recorded in the one or more conditions fields.

Abstract: An acoustic damper system is described that is suitable for musical performances. In one example, a musical instrument is carried on a stand. A fixture is configured to be attached to the musical instrument stand and one or more fingers extend away from the fixture and the musical instrument stand to contact the musical instrument, such as a cymbal. An acoustic shield can also be attached to the musical instrument stand that has a side wall surrounding a portion of the edge of the musical instrument to reflect sound back toward the musical instrument.

Abstract: Interchangeable neck and bridge components for a guitar. The body of the guitar has a recess having two parallel side walls and a sloped wall. The sloped wall is located between the two parallel side walls. The recess has a bore configured to receive a fastener. The guitar has a removable neck having a fretboard. The fretboard has a primary side located opposite a secondary side. At least one string is located on the primary side of the fretboard. The removable neck of the guitar has an end having a capturing structure connected to the secondary side of the fretboard. The capturing structure has a guide ramp. The neck of the guitar is secured to the body of the guitar when the bore of the recess of the body of the guitar and the bore of the capturing structure receives the fastener.

Abstract: Apparatus and associated methods relate to comparing a musical score model to a captured performance of the musical score, calculating a degree of similarity between the musical score model and the captured performance based on the comparison, and automatically evaluating the captured performance based on the degree of similarity and musical score degree of difficulty determined as a function of the musical score entropy. In an illustrative example, a musician may be learning to play the musical score. The musical score may be modelled, for example, based on pitch, volume, and rhythm, permitting comparison to the captured performance of the musical score. In some examples, the musical score degree of difficulty may be adapted based on the captured performance evaluation. Some embodiments may generate musical scores based on the captured performance evaluation. Various examples may advantageously provide corrective instruction based on the degree of difficulty and the captured performance evaluation.

Abstract: An electric brushless DC (BLDC) motor includes a stator and a rotor. The rotor includes a rotor shaft, a rotor core, a bearing, and a sense magnet ring. And end cap is radially oriented with respect to the rotor shaft and securely disposed adjacent the stator, the end cap having a first surface facing the stator, a second surface facing away from the stator, a bearing pocket centrally disposed to receive the at least one bearing of the rotor therein to support the rotor, and at least two retention features projecting from the first surface at a distance with respect to one another to form a lateral gap therebetween. A positional sensor board is radially received from a peripheral side of the end cap in contact with the first surface of the end cap and within the lateral gap between the retention features of the end cap.

Abstract: A generator assembly for harvesting energy in a bearing arrangement having a first ring and a second ring is provided. The generator assembly includes a plurality of coils attached to the first ring and configured to interact with a magnet ring with alternating magnetization directions attached to the second ring, and a plug connector for supplying power generated by the generator assembly to external devices. The coils are encapsulated and mounted in an outer carrier ring such that the winding axis is oriented in a radial direction of the bearing and the magnet ring is composed of plural permanent magnets attached to an inner carrier ring attached to the inner ring of the bearing.