Abstract: A resonance counterweight structure for audio effect article includes a hollow counterweight main body and an assembling section connected with the counterweight main body. The assembling section can be mounted in a predetermined position of a musical instrument. The counterweight main body at least includes an upper wall, a lower wall and a peripheral wall connected between the upper and lower walls. The upper wall, the lower wall and the peripheral wall define a chamber of the counterweight main body. At least one counterweight fine-adjustment unit is received in the chamber. The counterweight main body and the counterweight fine-adjustment unit help the audio effect article to modify the music so as to achieve more idealistic timbre effect. A player can more diversely select or replace the counterweight structure, whereby one single musical instrument can selectively output different timbre effects according to the requirements of different playing situations.

Abstract: A folding marimba may include a first set of spaced apart rails; a first set of tone bars suspended from the first set of spaced apart rails; a second set of spaced apart rails; and a second set of tone bars suspended from the second set of spaced apart rails; wherein the first and second sets of spaced apart rails are configured for hinged rotation about a hinge line such that the marimba is configurable in an unfolded configuration having a first length and a folded configuration having a second length that is less than the first length. For example, the second length may be about half of the first length.

Abstract: The dual keyboard sustain pedal stabilizer is designed for use with a pair of keyboard sustain foot pedals. The dual keyboard sustain pedal stabilizer comprises a stabilizer base, a first pedal-retention area in cooperative engagement with the stabilizer base, a second pedal-retention area in cooperative engagement with the stabilizer base, and an underside of the stabilizer base having a non-slip surface. The first and second pedal-retention areas each include retaining structures proximate to the stabilizer base. The retaining structures enable secure retention of the keyboard sustain foot pedals within the pedal retention area. The dual keyboard sustain pedal stabilizer provides stable footing for the musician on damp floors for both feet while providing a dual keyboard sustain pedal stabilizer that stabilizes either one or two keyboard sustain foot pedals. The dual keyboard sustain pedal stabilizer has no moving parts and is compatible with essentially any keyboard sustain foot pedal.

Abstract: A tremolo clamp for attaching to a tremolo-equipped musical instrument having a tremolo arm and retaining the tremolo arm in a selected position. The tremolo clamp includes a clamp rod extending in a longitudinal direction, a fixed clamp arm fixedly attached to a first end of the clamp rod, a first positionable clamp arm slidingly attached along the clamp rod, and a second positionable clamp arm slidingly attached along the clamp rod. The first positionable clamp arm is arranged between the fixed clamp arm and the second positionable clamp arm.

Abstract: A tuner for a guitar having a neck and string nut including a plurality of nut slots configured to receive respective guitar strings. A tuner mount is fixedly secured to the neck and a tuner body is mounted on the tuner mount. A string break angle fastener is engageable with a guitar string passing through the respective nut slot and sets a break angle of the guitar string. A string lock carriage is movably mounted on the tuner body and includes a string fastener engageable with the guitar string passing through the respective nut slot to secure the guitar string to the carriage. A tuner knob is manually movable to drive the string carriage and thereby adjust the tension of and tune the respective guitar string.

Abstract: A portable drum kit is disclosed. The disclosed drum kit comprising a base; musical instruments comprising one or more drums and at least one cymbal to be fitted on the base; one or more vertical columns fixed to the base to support at least one of the musical instruments at; one or more rod members detachably coupled to the one or more musical instruments; and at least one pair of modular clamps adapted to enable fitment of the least one of the one or more drums and the at least one cymbal to the vertical columns. The modular clamps allow movement of the musical instruments between an collapsed position in which the drums and the cymbal are placed closer to each other, and a deployed position in which the drums and the cymbal are placed at desired positions to allow a percussionist to use the drum kit.

Abstract: Soundboards and backboards of an acoustic stringed instrument and methods of manufacturing the same are disclosed. In one embodiment, the soundboard or backboard includes a base having opposed top and bottom surfaces, a plurality of channels on the bottom surface of the base, and a plurality of braces that correspond to the plurality of channels and that are received in and attached to the plurality of channels. In one embodiment, the method includes shaping a board to a uniform nominal thickness and carving a plurality of channels on the board via a Computer Numerically Controlled (CNC) router. The method additionally includes attaching a plurality of braces that correspond to the carved plurality of channels such that the plurality of braces is received in the plurality of channels.

Abstract: Disclosed is a torsion based tremolo apparatus that includes a moving plate rotatably coupled to a mounting plate. A torsion device imparts torsional force to the moving plate relative to the mounting plate around an axis of rotation. The mounting plate is used to attach the tremolo apparatus to a guitar or other string musical instrument. Adjustable bridge clamps and tuning plates coupled to the moving plate may be used to set the tension on the instrument strings as desired. Rotation of the moving plate relative to the mounting plate alters the tension on the instrument strings.

Abstract: Described herein is an adjustable bridge unit for use with a stringed instrument, such as an electric guitar. The construction of the unit allows for an unimpeded string path from the rear of an adjustable height bridge in a downward trajectory toward a tailpiece. Moreover, the bridge unit may be used to convert a pivot style bridge system to a fixed bridge system, as well as to perform a variety of corrective measures, such as post placement, intonation, and string alignment, which may be required given discrepancies in manufacturing tolerances of the stringed instrument.

Abstract: A plectrum for strumming a stringed instrument has a body having a front face, a rear face, a pick tip, and an outer edge. An ergonomic contour is provided on the front face or the rear face of the body. In one version, the ergonomic contour extends radially from a central region to a position short of the outer edge of the plectrum, wherein the ergonomic contour creates a surface that is contactable by a thumb or other finger of a user to assist the user in using the plectrum and wherein the ergonomic contour does not interfere with using the outer edge during strumming. In another version, the ergonomic contour provides a tactile indication of the position, location, or orientation of a pick tip. The ergonomic contour can be in the form of a ridge and/or a change of thickness of the central region.

Abstract: A drum dampener kit with a dampener and stabilizers. The dampener includes an annular ring made from a relatively dense material such as steel, and a pad. The ring is the same as or slightly smaller than the drumhead. The width and thickness depend on the desired weight. The pad is a soft material attached by an adhesive either to the ring on the bottom or wrapped around the outside edge. The pad is a single piece around the entire circumference or a plurality of pad sections spaced around the ring. The stabilizer has a hook that hooks under the drum hoop and loops over the top of the hoop to a foot that holds the dampener onto the drumhead. Studs on the top of the ring and a complementary holes in each stabilizer provide a mechanism for retaining the dampener in the correct position on the drumhead.

Abstract: A ligature strap for a mouthpiece includes a plurality of kerfs extending at least partially along each one of a plurality of parallel lines running across the ligature strap with at least two separate kerfs extending along a common line in the plurality of parallel lines. The ligature strap includes a central portion and two ends portions extending at an angle from the central portion. The parallel lines extend into the end portions and kerfs are disposed on the parallel lines in the end portions.

Abstract: A tremolo bar attachment accessory device for removably attaching an accessory to the end of a tremolo bar. The accessory may be decorative, functional, or a combination of both. The device can be used with a variety of popular and well-known tremolo systems.

Abstract: A file for use in forming a groove in a nut or bridge of a string musical instrument. The file includes a filing edge that is rounded to the same radius as the string to be fitted in the groove it forms in the nut and bridge. A spine or rib is formed along the upper edge of the file to provide stiffening and permitting the file to not bow or flex when being used.

Abstract: The invention relates to a bow for a bowed string musical instrument, which comprises a narrow stick and one or more strips or hairs for rubbing the strings of a bowed string musical instrument. The bow incorporates at least one illuminating means, a processing means able to activate and control the illuminating means, and a power supply battery for the electrical power supply of the illuminating means, all said elements being disposed on the narrow stick.

Abstract: A solid wood block idiophone having slit reinforcement plates mounted against the sides of the idiophone's wood block is described. Advantageously, the reinforcement plates act to increase the durability of the wood having one or more open faced resonant chambers with chamber sidewall slits by preventing the wood from fracturing to and from the open woodgrain ends terminated at the sidewall slits.

Abstract: The invention relates to a bracket and, in particular, a wall bracket for a musical instrument (1), particularly for a stringed instrument. To this end, the bracket has an adjustable base (4) for receiving an instrument body (1a) and at least two retaining arms (5), which are able to pivot relative to an anchor element (3), for detachably securing an instrument neck (1b) received between the retaining arms (5). The base (4) and the two retaining arms (5) are coupled to each other by at least one connecting member (6). Furthermore, at least one spring (7) is provided which prestresses the base (4) into a rest position and the two retaining arms (5) into an open position. According to the invention, the connecting member (6) is designed as a connecting rod (6) rigidly coupling the base (4) to the two retaining arms (5) and prestressed by the spring (7).

Abstract: A file for use in forming a groove in a nut or bridge of a string musical instrument. The file includes a filing edge that is rounded to the same radius as the string to be fitted in the groove it forms in the nut and bridge. A spine or rib is formed along the upper edge of the file to provide stiffening and permitting the file to not bow or flex when being used.

Abstract: In an embodiment a flute head joint includes a beak-shaped mouthpiece and a curved neck, wherein the mouthpiece comprises a curved labium, and wherein a chamber of the mouthpiece has a larger diameter than an inner cavity of the neck.

Abstract: A tuning apparatus for a stringed musical instrument is provided. The apparatus includes a dual-action cam clamp assembly and a plurality of string-contacting members with easy-to-adjust rocker arms. The dual-action cam clamp assembly removably attaches to a desired longitudinal position on the instrument's neck. Each of the string-contacting members is rotatably supported by a rocker arm shaft, and the easy-to-adjust rocker arms are adapted to rotate about the longitudinal axis of a two-part shaft of the clamp assembly independently of the other string-contacting members. Each member also adjustably impinges upon and urges a given string or course thereof on the instrument toward a user-selectable one of three different longitudinal positions on the neck's front surface, these positions including a home position, a home?1 position, and a home+1 position.