A chromatic harmonica with reduced air leakage in which a flexible mouthpiece replaces the conventional rigid mouthpiece, and a low friction valve slide replaces the conventional valve slide, thereby allowing the low friction valve slide to move horizontally when played without binding, and which eliminates the need for a gap between the mouthpiece and valve slide through which air leaks. For the chromatic harmonica with a flexible mouthpiece to function properly, a new button configuration is added. The button is disposed in the rear portion of the chromatic harmonica. A bar is attached to the button at one end of the bar, and the other end of the bar inserts into an opening in the valve slide. The button further comprises a cylinder, around which a spring is disposed. The cylinder inserts inside of a hole on a side of the chromatic harmonica adjacent the rear.

The invention relates to an acoustic product composed of composite material, such as a musical musical instrument, a part thereof, an acoustic equipment or like, which is manufactured from raw material comprising at least cellulose based substance and plastic based substance by means of a thermoplastic process, such as by pressing, compression molding, injection molding, extrusion, blow molding by heat, rotational molding and/or the like. The acoustic product has a material composition consisting of fiber substance (1) based on surface modified cellulose and plastic based substance (2), wherein the product has an essentially wood-like, but isotropic sound.

A piston for a wind instrument includes a one-piece body, the one-piece body defining a plurality of ports and one or more windways each connecting at least a subset of the plurality of ports. The plurality of ports and the one or more windways are formed by processing a single piece of a material to remove a portion of the material from the single piece. The single piece of the material can be a cylindrical rod of the material. The one-piece body can be made of aluminum, an aluminum alloy, brass, a nickel-copper alloy, or stainless steel. The surface of the piston can be hard coat anodized and/or polytetrafluoroethylene (PTFE) sealed.

An object of the present invention is to provide a woody material for a wind instrument superior in resistance to a moisture change. The woody material for a wind instrument comprises: a plurality of veneers being laminated; and at least one buffer layer comprising a fibrous sheet constituted from a nonwoven fabric or a woven fabric, and an adhesive with which the fibrous sheet is impregnated, the buffer layer being interposed between adjacent two of the plurality of veneers.

One embodiment of the present application sets forth a method for simulating an audio output of a three-dimensional object that includes a resonant cavity. The method includes receiving an input mesh of a three-dimensional shape and a hole configuration. The input mesh has an outer surface and an internal cavity, and the hole configuration includes one or more holes. The method further includes adding the one or more holes to the three-dimensional shape based on the hole configuration to generate a modified three-dimensional shape having a resonant cavity. The resonant cavity includes the one or more holes and the internal cavity. The method further includes determining an air pressure coefficient matrix for the resonant cavity. The method further includes computing a minimum non-zero eigenvalue for the air pressure coefficient matrix. The method further includes determining an output resonant frequency for the resonant cavity based on the minimum non-zero eigenvalue.

The present mouthpiece for wind musical instrument generally provides a wider range of the tone in the wind musical instruments. An improved mouthpiece for wind musical instrument includes a first and a second reeds coupled by a coupler at the musical instrument side, a first and a second apertures in the first and second reeds respectively, a decorative bolt with a first and a second washers, a decorative nut, and a spring.

A disk of a wind instrument includes an integral body made of a material which is in a solid state at a room temperature and in a malleable state at a predetermined temperature higher than the room temperature. The disk is configured to stabilise a pad assembly in a key cup for closure of a tone hole of the wind instrument.

The invention relates to an acoustic product composed of composite material, such as a musical musical instrument, a part thereof, an acoustic equipment or like, which is manufactured from raw material comprising at least cellulose based substance and plastic based substance by means of a thermoplastic process, such as by pressing, compression molding, injection molding, extrusion, blow molding by heat, rotational molding and/or the like. The acoustic product has a material composition consisting of fiber substance (1) based on surface modified cellulose and plastic based substance (2), wherein the product has an essentially wood-like, but isotropic sound.

A disk for stabilizing a pad assembly in a key cup for closure of a wind instrument tone hole includes an integral body made of a material which is in a solid state at a room temperature and in a malleable state at a predetermined temperature higher than the room temperature.

Repair device for a dent is provided in metal bend tube part of musical instrument capable of effectively performing repair work in short time, not by conventional repair method using dent ball. In the device, a pressurizing device main body is also provided formed by connecting base member having an L shape in side view with first fulcrum at a base thereof and movable pressurizing member whose upper surface has convex arc-shaped surface in side view and has a second fulcrum at center part of lower surface, through a first and second arm. A wire, passes through the second arm and upright part of base member in axial direction, is provided, stopper is fastened to an end of wire which has passed through to outside of second arm, and wire passes through inside of curved metal tube and other end side of wire is connected to a foot pressing device.