A brass instrument includes a mouthpiece configured to convert vibrations of player's lips into sound and take the sound inside; a bell configured to magnify a volume of the sound taken by the mouthpiece and release the sound to the outside; and a main tube intervening between the mouthpiece and the bell, and is characterized in that the main tube includes a main tube body formed to spread out in a spiral manner in a state in which side surfaces of the main tube body are closely attached to each other, and a part of the closely attached side surfaces of one of the tubes constitutes a part of the side surface of the closely attached other tube.

A brass instrument includes a mouthpiece configured to convert vibrations of player's lips into sound and take the sound inside; a bell configured to magnify a volume of the sound taken by the mouthpiece and release the sound to the outside; and a main tube intervening between the mouthpiece and the bell, and is characterized in that the main tube includes a main tube body formed to spread out in a spiral manner in a state in which side surfaces of the main tube body are closely attached to each other, and a part of the closely attached side surfaces of one of the tubes constitutes a part of the side surface of the closely attached other tube.

A brass instrument includes a mouthpiece configured to convert vibrations of player's lips into sound and take the sound inside; a bell configured to magnify a volume of the sound taken by the mouthpiece and release the sound to the outside; and a main tube intervening between the mouthpiece and the bell, and is characterized in that the main tube includes a main tube body formed to spread out in a spiral manner in a state in which side surfaces of the main tube body are closely attached to each other, and a part of the closely attached side surfaces of one of the tubes constitutes a part of the side surface of the closely attached other tube.

A brass instrument includes a mouthpiece configured to convert vibrations of player's lips into sound and take the sound inside; a bell configured to magnify a volume of the sound taken by the mouthpiece and release the sound to the outside; and a main tube intervening between the mouthpiece and the bell, and is characterized in that the main tube includes a main tube body formed to spread out in a spiral manner in a state in which side surfaces of the main tube body are closely attached to each other, and a part of the closely attached side surfaces of one of the tubes constitutes a part of the side surface of the closely attached other tube.

A portable mellophone instrument having two interchangeable leadpipes and pitched in real F. The mellophone plays in the key of real F, and has a stable, deep, mellow sound. The mellophone allows French horn players to use their own mouthpiece to play the mellophone without an adapter, and allows trumpet players to play the mellophone using a familiar mouthpiece.

A portable mellophone instrument having two interchangeable leadpipes and pitched in real F. The mellophone plays in the key of real F, and has a stable, deep, mellow sound. The mellophone allows French horn players to use their own mouthpiece to play the mellophone without an adapter, and allows trumpet players to play the mellophone using a familiar mouthpiece.

A portable mellophone instrument having two interchangeable leadpipes and pitched in real F. The mellophone plays in the key of real F, and has a stable, deep, mellow sound. The mellophone allows French horn players to use their own mouthpiece to play the mellophone without an adapter, and allows trumpet players to play the mellophone using a familiar mouthpiece.

A portable mellophone instrument having two interchangeable leadpipes and pitched in real F. The mellophone plays in the key of real F, and has a stable, deep, mellow sound. The mellophone allows French horn players to use their own mouthpiece to play the mellophone without an adapter, and allows trumpet players to play the mellophone using a familiar mouthpiece.

The resonator (1) is associated with wind instruments (S) of the type comprising a bell (C) located in correspondence of its main opening (A). The resonator (1) comprises a resonator element (2) preferably having a concave shape, supported within or in front of the bell (C) so that said concavity is directed towards the latter and that between the same resonator element (2) and bell (C) is defined a light passage (3). The resonator element (2) is aimed to define an auxiliary harmonic box intended for intercepting and reflecting or diverting the output sound waves from said bell (C) in order to increase its power, vary its timbre and/or improve the sound diffusion.

A sound deflector for a wind instrument has a sound deflector plate and a device for the mounting thereof on the edge of a bell of the wind instrument. The device for mounting the deflector plate has an upper part and a lower part, which are respectively fastenable on the outer surface or the inner side of the bell edge. The upper and lower parts are connected to one another by means of a hinge. According to the invention, the lower part and upper part each have at least two nubs having rounded edges. When the upper and lower parts are brought together, the nubs of the upper part and lower parts are each arranged offset in relation to one another. The sound deflector enables fastening on instruments having bell edges of different shapes and curvatures or on music stands. The offset arrangement of the nubs on the mounting device enables a clamping fastening on a bell edge. The sound deflector according to the invention is therefore universally usable.