Abstract: The present disclosure relates to a stringed instrument resonance analysis device which uses a scientific detection method to evaluate the resonance effect of stringed instrument, wherein the stringed instrument resonance analysis device has a cabinet, a holder, a resonant sounder, a sonic generator, at least one sonic collector and a spectrum analyzer. The cabinet forms an accommodating space therein. The holder a holder is disposed in the accommodating space and used to fix and hold the stringed instrument. The resonant sounder is disposed in the accommodating space and fixed and clamped to a bridge on a loudspeaker box of the stringed instrument. The sonic generator is connected to the resonant sounder. The sonic collector is disposed in the accommodating space and adjacent to the loudspeaker box of the stringed instrument. The spectrum analyzer is connected to the at least one sonic collector.

Abstract: A keyboard device and a musical sound emission method are provided. A top lid is formed into a hollow structure including a lower plate and an upper plate facing the lower plate. Since vibrating bodies are fixed to an inner surface of the lower plate, the vibrating bodies can cause the lower plate to vibrate and thereby emit musical sound generated through the vibration from an outer surface side of the lower plate to the outside. On the other hand, the musical sound emitted from an inner surface side of the lower plate is blocked by the upper plate, and it is thus possible to curb mutual cancelation of musical sound in opposite phases emitted from each of the inner surface and the outer surface of the lower plate. Therefore, it is possible to efficiently emit musical sound to the surroundings of the top lid.

Abstract: The present invention relates to an educational string instrument comprising: a body provided with a head portion and a bottom portion; a nut installed on the head portion; a saddle installed on the bottom portion; a plurality of fixing parts installed on an outer side of the nut of the body; a plurality of tuning devices installed on an outer side of the saddle of the body; a plurality of strings supported by the fixing parts and the tuning devices and installed to be spaced apart from the body by the nut and the saddle, and a single fret installed to be inwardly spaced apart from an inner side of the nut to form a fingerboard part and functioning for raising an original note of the string by a semitone.

Abstract: A sound generation device according to an embodiment of the present invention includes an identification unit configured to identify one mobile communication terminal from one or more mobile communication terminals capable of communicating, an acquisition unit acquiring setting data regarding generation of a sound or control of generation of a sound from identified one mobile communication terminal, and a sound generation unit configured to detect an operation on an operation unit and outputting a sound on the basis of detected operation and the setting data.

Abstract: Invention is an attachment to any stringed instrument with a neck and fretboard/fingerboard that enables the stringed instrument to play itself. The invention comprises of a picking system, a fretting system, and an interface that allows a user to select what music they would like to play on the stringed instrument. The picking and fretting systems are releasably attached to the stringed instrument. Permanent modifications to the stringed instrument are not required to install the automated string player attachments.

Abstract: An electric machine is provided that includes a stator defining a rotor chamber and a plurality of stator slots disposed circumferentially about the stator. The stator includes a plurality of phase groups each including a plurality of circuits. Each circuit includes a plurality of winding sets of a plurality of phase conductors connected in series for carrying an alternating current voltage. A rotor is disposed in the rotor chamber for rotating relative to the stator. The phase conductors are laid in a plurality of layers of the plurality of stator slots. Stator slots that include phase conductors carrying different phases are shared slots and stator slots that include phase conductors carrying the same phase are same slots. The circuits are arranged with balanced quantities of same slots and shared slots for reducing stator losses at high rotational speeds of the rotor relative to the stator.

Abstract: A coil includes a plurality of segment coils. Ends of two corresponding segment coils are electrically connected together via a coupling member or by being fitted together. Each of the plurality of segment coils includes a conductor-exposed portion located close to a connection portion between the corresponding segment coils and to be brought into contact with a probe of a resistance measurement apparatus. When the coil is manufactured, the ends of the plurality of segment coils are electrically connected to the ends of other corresponding segment coils, and electric resistances of connection portions between the ends are measured for each layer of the ends of the segment coils.

Abstract: The present application discloses a clamping mechanism for a guitar capo, including an upper clamp (1) and a lower clamp (9). A slider rail (2) is fixedly installed inside the upper clamp (1), a rebound torsion spring fixing pin (3) is fixedly installed inside the slider rail (2), and a rebound torsion spring (4) is fixedly installed inside the slider rail (2) by the rebound torsion spring fixing pin (3). A crank hinge (6) is fixedly installed inside the slider rail (2). The clamping mechanism of the guitar capo is provided with the lower clamp (9), and the cam structure on the right side of the lower clamp (9) is stuck and cannot move the self-locking slider (7) in the opposite direction, thus the lower clamp (9) cannot rotate in the opposite direction, thereby achieving locking effect and completing locking and clamping.

Abstract: A haptic controller including a base, a plurality of actuators, each actuator being mounted pivotally relative to the base along a pivoting axis perpendicular to the main direction, a plurality of damping elements, each being positioned so as to dampen a rotation movement of an actuator, the damping elements being elastically deformable between an initial configuration and a final configuration, each damping element including a body of deformable material, the body having at least one recess, wherein, each of the actuators have a protrusion suitable for coming into contact with the associated damping element, and each protrusion has a free end defining a contact with the associated damping element in its initial configuration.

Abstract: A musical sound producing apparatus includes a plurality of keys; a sound production information generator configured to generate 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 configured to generate 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 configured to generate a musical sound signal on the basis of the sound production information and the control information.

Abstract: A stator member includes a stator core, a coil, and an insulator. The stator core has a shape extending in an axial direction, and has a side surface parallel to the axial direction. The coil has a linear shape and is wound around the side surface of the stator core. The coil has a coil end portion 231 at one end of the coil having the linear shape, and a coil end portion 232 at another end of the coil having the linear shape. The insulator has insulation properties, and is provided with an outer member. The outer member has a first recess and a second recess extending in a thickness direction. The coil end portion 231 is inserted into the first recess. The coil end portion 232 is inserted into the second recess.

Abstract: A system to teach mathematics using virtual musical instruments displayed on a client computing device includes a server, a database stored on the server, an application stored on the server, and a plurality of songs stored on the server. The system also includes a plurality of mathematical equations stored in the database, where each mathematical equation comprises a composite of musical notes and mathematical operators. The system includes a local application stored on the client computing device to display the virtual musical instrument and is configured to display a correct indicator in response to the user solving the mathematical equation correctly when the user plays a musical note on the virtual musical instrument corresponding to the numerical answer that correlates to the song.

Abstract: The present invention may provide a motor including a housing, a stator disposed in the housing, a rotor disposed in the stator, a shaft coupled to the rotor, and a bus bar disposed on the stator and including a plurality of terminals, wherein the plurality of terminals include a neutral terminal and a plurality of phase terminals, the neutral terminal includes a first body of which a first width in a radial direction is greater than a second width in an axial direction and a plurality of first connectors extending from the first body, and the phase terminal includes a second body of which a first width in the radial direction is less than a second width in the axial direction and a plurality of second connectors extending from the second body.

Abstract: A stator device with a plurality of windings, on a winding carrier, that electromotive interaction with a rotor. The windings are parallel to one another and to the center axis. The windings can be individually electrically contacted with winding terminals of a winding wire. The windings are assigned to at least two disk-shaped and/or ring-shaped electrically conductive interconnection rings so that they are electrically insulated from one another. The winding terminals are connected using the interconnection ring assigned to this terminal polarity (U; V; W) for external permanent common contact by welding hooks formed on the radial inner side on the interconnection ring. A ring-shaped deflection disk, with deflection pins, is provided in the axial direction on the interconnection end disk.

Abstract: An electric machine provided with a stator structure including internal and external layers of interleaved pre-wound coils made of rectangular wire coated with enamel insulation varnish is described herein. The two layers of pre-wound coils allow the use of slightly different size of pre-wound coils, which facilitates their insertion into the stator slots.

Abstract: A percussion instrument includes a drum head arranged on a support with a flange of the drum head extending from the support, wherein the support is an inner ring, and an outer ring comprising an abutment that is configured to engage the flange of the drum head. The inner ring and the outer ring are concentrically arranged and moveable relative to each other in a longitudinal direction. The percussion instrument also includes a tensioning mechanism having an external screw thread going around on an outer circumference of the inner ring, and an internal screw thread going around on an inner circumference of the outer ring.

Abstract: A piano tuning retention system includes first and second bushings, each having a threaded upper longitudinal end and a lower longitudinal end that defines a polygonal interior for mating with a polygonal end of a respective piano tuning pin, first and second threaded fasteners corresponding to the threaded upper longitudinal ends of the bushings, first and second sleeves that fit over the bushings, each of the sleeves having an upper longitudinal end with an inward radial extension that defines a reduced inner diameter and a lower longitudinal end that defines a catch (e.g. a notch) extending in a circumferential direction of the sleeve for engagement with a piano string, and a bridge configured to be sandwiched between the threaded fasteners and the inward radial extensions of the sleeves with the bushings disposed within the sleeves and the threaded fasteners fastened to the threaded upper longitudinal ends of the bushings.

Abstract: The instant invention relates to new attachments for the round tubular body of flutes. It attaches firmly, but removably, to the flute and stabilizes the relation between the flute and the player's left index finger (and/or thumb) without pressure on the player's mouth, which enhances the flexibility of the player's lips to more perfectly play the flute. This is especially beneficial for the player's lower lip, which, under extant art, is forcibly pinned against the lower teeth and gums to stabilize the flute. This invention comprises a finger connector and a spacer attachment to the flute, constituting a comfortable surface for the base of the left index finger and an opening through which the flute player's left index finger (and/or thumb) is inserted, as like wearing a ring.

Abstract: Systems and methods are provided performing autonomous tuning of a stringed instrument. Images of the stringed instrument are acquired by at least two cameras and processed to identify the location of a peg. A robotic peg actuator is then engaged to actuate rotation of a peg in order to rotate the peg to a tuned angular orientation, guided by feedback generated by processing acoustic signals recorded by an acoustic transducer while a string associated with the peg is agitated. In some example implementations, the cameras and peg actuator are rigidly mounted to a frame that is configured to support the stringed instrument during peg imaging and actuation. A robotic string actuator may be provided to facilitate vibration of the string during the tuning process. Multiple robotic peg actuators may be included for per-peg rotational actuation and/or a given peg actuator may be robotically translatable to actuate more than one peg.

Abstract: Embodiments herein illustrate an educational musical game. The educational musical game includes a first set of polygon tokens representing a first combination of a first set of musical notes and a first musical interval between musical notes in the first set of musical notes. Further educational musical game includes a second set of polygon tokens representing a second combination of a second set of musical notes and a second musical interval between the musical notes in the second set of musical notes. The second set of polygon tokens is configured to be coupled with the first set of polygon tokens based on one or more rules associated with the first set of musical notes and the second set of musical notes.