Abstract: A keyboard device for a keyboard instrument, capable of largely reducing noise generated when a hammer contacts a lower limit stopper during key release immediately after key depression. The keyboard device includes a keyboard chassis disposed on a keybed, keys pivotally supported on the chassis, hammers pivotally supported on the chassis below the keys and each vertically pivotally moved, an intermediate rail mounted on the chassis below a rotational shaft of the hammers and its vicinity in a state floating from the keybed, and a lower limit stopper mounted on the intermediate rail, such that each hammer is placed thereon via its placement-contact portion when in a key-released state and contacts the same from above via the placement-contact portion when pivotally moving downward in accordance with key release after being moved upward by key depression, whereby further pivotal motion of the hammer is stopped.

Abstract: A stringed instrument tailpiece includes an elongate body that is top/bottom and left/right symmetrical. Openings are formed at a bridge-end of the elongate body to engage a musical instrument's one or more strings. An opening at the gut-end of the elongate body is configured to engage a gut, which attaches to an instrument endpin.

Abstract: A stator includes a stator core, first to third phase windings, and a busbar unit. Each of the first to third phase windings includes segment conductors inserted into slots of the stator core, and has a power point and a neutral point each protruding from an end face of the stator core. The busbar unit includes first to third power busbars coupled respectively to the power points of the first to third phase windings, and a neutral busbar coupled to the neutral points of the first to third phase windings. In circumferential directions of the stator core, the neutral point of the third phase winding is disposed between the power points of the first and second phase windings, and the power point of the third phase winding is disposed between the neutral points of the first and second phase windings.

Abstract: A practice musical instrument configured to mimic implement rebound produced when playing a conventional version of the musical instrument can include a plurality of spaced-apart, rectangular keys. At least two of the keys can have a different length. A strike pad can be attached to a top surface of each key. Each strike pad can be formed of rubber. Each strike pad can be sized to the key to which it is attached. Hitting one of the strike pads with an implement can produce a rebound of the implement that mimics a rebound of the implement when hitting a corresponding key of the conventional version of the instrument. Hitting one of the strike pads with the implement produces a sound that is quieter than when the implement hits a corresponding key of the conventional version of the instrument.

Abstract: A recommend apparatus includes: a communication device; and at least one processor. The at least one processor is configured to: receive performance information generated based on a performance of a first user, through the communication device; determine a second user from a plurality of other users based on the received performance information of the first user, the second user being at least one of other users similar to the first user in music use tendencies, other users similar to the first user in function use tendencies shown during playing, and other users similar to the first user in music mastering characteristics determined from distributions of scores each of which is calculated for each play; determine recommendation information to be provided to the first user, based on performance information of the determined second user; and send the determined recommendation information from the communication device.

Abstract: A method of making tonebars and other components for musical instruments comprises using a pultrusion apparatus to embed or coat glass, plant-based, and/or other fibers in or with a thermosetting, thermoplastic, or catalyzed polymer matrix. The coated fibers are pulled into a continuous bar in a curing and forming die. The bar is then cut into predetermined lengths. Each length is then carefully tuned by cutting and shaping so that when it is struck, it will emit musical notes on a chromatic musical scale. In one aspect, the fibers and resin are selected to produce tonebars for marimbas and xylophones that emulate the sound obtained from highly desirable Honduran rosewood at a fraction of the cost and environmental impact associated with this wood.

Abstract: A system and method for teaching children in the field of music, and more particularly to teach children to play the piano and read musical notes using physical objects with images of characters assigned to fingers and animals assigned to musical notes, with assigned colors and shapes, and all incorporated within themed environments presented in continuing stories.

Abstract: A musical keyboard interface capable of controlling either a string instrument or synthesizer controller includes a small, consistent keyboard interface that moves with each hand along one or both edges of a stationary ruler. The ruler segments measure the static location of each note in chromatic order. The keys are oriented in length perpendicular to the length of the ruler and each key is as wide as each ruler segment. As the keyboard moves along the ruler and its keys realign with new ruler segments, the keys become able to articulate the notes indicated by their position. The transformation is gradual, smoothly sliding notes and chords in varying magnitudes and directions simultaneously.

Abstract: A removable device for positioning a user's forearm and hand in relation to a guitar is provided. The removable device comprises: (i) a first strap overlying a first portion of the guitar and having attached thereto a first pad and a second pad; (ii) a second strap overlying a second portion of the guitar and joined to the first strap via a first connector, wherein the first connector is coupled to the guitar at a first point; and (iii) an adjustment mechanism overlying a third portion of the guitar and joined to the first strap, the second strap, the first connector, and a second connector, wherein the second connector is coupled to the guitar at a second point.

Abstract: Provided are a one body type terminal assembly of a driving motor for a vehicle and a manufacturing method thereof, the one body type terminal assembly including a bus bar assembly including a plurality of ring-shaped bus bars overlapping each other, each of which is primarily insert-injection-molded and of which an outer surface is surrounded with an insulating material; and flanges which are simultaneously insert-injection-molded with the bus bar assembly to be formed to protrude from an outer circumferential surface of the bus bar assembly at intervals when the bus bar assembly is secondarily insert-injection-molded.

Abstract: The present disclosure provides a motor configured to receive driving power from a connector including power terminals. The motor comprises a housing, a terminal block disposed inside the housing, and at least one terminal located adjacent to the terminal block. The power terminals are configured to penetrate through the terminal block, and the at least one terminal is configured to be brought into contact with the power terminal according to a movement of the connector when hairpin coils are inserted in the connector, such that the driving power is applied to the hairpin coils via the power terminal.

Abstract: A drum includes a low volume drum head, a pellet chamber, and a magnetic choke. The pellet chamber is located beneath the low volume drum head. The pellet chamber is configured to hold a plurality of pellets, and the pellet chamber defines a plurality of apertures in a wall of the pellet chamber. The magnetic choke carries at least one magnet. The magnetic choke is configured to move relative to the pellet chamber so as to adjust a magnetic force imparted on the pellet chamber.

Abstract: A motor drive apparatus includes: a power device constituting a portion of a power conversion circuit for generating electric power for driving a motor and having input/output terminals; a printed wiring board having a hole; a bus bar connected to both of the power device and the printed wiring board, wherein the bus bar includes a first plate-like connector portion to be fixed to the input/output terminal, a second connector portion to be connected to the printed wiring board, and an extension portion extending between the first connector portion and the second connector portion that will pass through the hole.

Abstract: Drum pedal for striking a drum, the pedal comprising: a support having at least one leg; a rotary shaft borne by said support; a beater mounted on said rotary shaft and configured to rotate upon rotation of said rotary shaft, wherein the beater is configured to strike the drum; an actuation mechanism for rotating the beater in a first direction towards the drum; a return mechanism for rotating the beater in a second direction opposite the first direction away from the drum.

Abstract: An embodiment relates to a motor comprising: a shaft; a rotor which is coupled to the shaft; a stator which is disposed outside the rotor; a housing which accommodates the rotor and the stator and has an opening formed at one side thereof; and a cover which covers the opening, wherein the cover comprises a cover plate portion; and a side wall which extends axially from the cover plate portion, and at least three grooves are formed in the side wall. Accordingly, the motor according to the embodiment can guarantee the sealing performance while preventing the bearing from being damaged when the rotor is assembled on the inside of the stator.

Abstract: A stator for an electric machine is fabricated by assembling a core and first and second winding assemblies. The first winding assembly (FWA) is fabricated by a 3D printing process and includes a plurality of U-shaped conductors (hairpins) having respective end-turns arranged in mutually axially-nested relationship to each other to form a ring, and further having two uprights disposed in one of the slots of the core. End-turns connect respective pairs of the uprights and are disposed adjacent to an end surface of the core, distal ends of the uprights projecting axially beyond an opposite end surface of the core. The second winding assembly (SWA) includes a plurality of bridges forming a second ring Opposite ends of each bridge define terminals that mate with ends of the uprights. The SWA further includes an electrically non-conductive casing in which at least one of the bridges is embedded.

Abstract: A foldable stringed instrument, for example in the form of a travel guitar that folds mid-neck to assume a reduced profile is described. The mid-neck folding is accomplished in a symmetrical manner about a three-part hinge located in the neck to configure the travel guitar into a reduced profile. The bridge assembly can be translated longitudinally relative to the head of the guitar to allow sufficient detensioning of the guitar strings to enable an upper portion of the neck to be folded away from a lower portion of the neck and/or body to assume a reduced profile. To deploy the travel guitar for playing, the upper portion of the neck is unfolded into alignment with the lower portion of the neck and/or body, and the bridge assembly translated longitudinally relative to the head and locked in position to allow the guitar to be tuned for playing.

Abstract: In a stator, coils of multiple phases are wound around a stator core via an insulator. A guide member is provided on one side of the stator core in the axial direction and guides the terminal line of the coil in the circumferential direction at a position overlapping the coil in the axial direction. The guide member has a collecting portion which collect the terminal lines at one place in the circumferential direction. The terminal line of the coil arranged in a vicinity of the collecting portion in the terminal line is a non-drawn terminal wire that is collected in the collecting portion without being drawn on the guide member in the circumferential direction.

Abstract: A motor that includes a plurality of stator members and a busbar member. The busbar member connects to coil end portions of a predetermined stator member of the plurality of stator members. The busbar member may comprise a first busbar, a second busbar, and a third busbar. The busbars may include an annular-shaped base portion, and a connection terminal connected to an outer circumference of the base portion and connected to the coil end portions. The busbar member and the plurality of stator members may be aligned in an axial direction. Each connection terminal of the busbars may have a shape projecting toward the stator member relative to the base portion.

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.