A brass instrument is a musical instrument that produces sound by sympathetic vibration of air in a tubular resonator in sympathy with the vibration of the player's lips. Brass instruments are also called labrosones or labrophones, from Latin and Greek elements meaning 'lip' and 'sound'.
The euphonium is a medium-sized, 3 or 4-valve, often compensating, conical-bore, tenor-voiced brass instrument that derives its name from the Ancient Greek word εὔφωνος euphōnos, meaning "well-sounding" or "sweet-voiced". The euphonium is a valved instrument. Nearly all current models have piston valves, though some models with rotary valves do exist.
The pitch of a brass instrument corresponds to the lowest playable resonance frequency of the open instrument. The combined resonances resemble a harmonic series. The fundamental frequency of the harmonic series can be varied by adjusting the length of the tubing using the instrument's valve, slide, key or crook system, while the player's embouchure, lip tension and air flow serve to select a specific harmonic from the available series for playing. The fundamental is essentially missing from the resonances and is impractical to play on most brass instruments, but the overtones account for most pitches.
The trombone is a musical instrument in the brass family. As with all brass instruments, sound is produced when the player's vibrating lips cause the air column inside the instrument to vibrate. Nearly all trombones use a telescoping slide mechanism to alter the pitch instead of the valves used by other brass instruments. The valve trombone is an exception, using three valves similar to those on a trumpet, and the superbone has valves and a slide.
The tuba is the lowest-pitched musical instrument in the brass family. As with all brass instruments, the sound is produced by lip vibration – a buzz – into a mouthpiece. It first appeared in the mid-19th century, making it one of the newer instruments in the modern orchestra and concert band. The tuba largely replaced the ophicleide. Tuba is Latin for "trumpet".
A valve is a device or natural object that regulates, directs or controls the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure. The word is derived from the Latin valva, the moving part of a door, in turn from volvere, to turn, roll.
The bass trumpet is a type of low trumpet which was first developed during the 1820s in Germany. It is usually pitched in 8' C or 9' B♭ today, but is sometimes built in E♭ and is treated as a transposing instrument sounding either an octave, a sixth or a ninth lower than written, depending on the pitch of the instrument. Having valves and the same tubing length, the bass trumpet is quite similar to the valve trombone, although the bass trumpet has a harder, more metallic tone. Certain modern manufacturers that sell 'valve trombones' and 'bass trumpets' employ the same tubing, valves, and bell in different combinations; in these circumstances, the bass trumpet is nearly similar to the valve trombone.
The tenor horn is a brass instrument in the saxhorn family and is usually pitched in E♭. It has a bore that is mostly conical, like the flugelhorn and euphonium, and normally uses a deep, cornet-like mouthpiece.
The mellophone is a brass instrument typically pitched in the key of F, though models in E♭, D, C, and G have also historically existed. It has a conical bore, like that of the euphonium and flugelhorn. The mellophone is used as the middle-voiced brass instrument in marching bands and drum and bugle corps in place of French horns, and can also be used to play French horn parts in concert bands and orchestras.
The valve trombone is a brass instrument in the trombone family that has a set of valves to vary the pitch instead of a slide. Although it has been built in sizes from alto to contrabass, it is the tenor valve trombone pitched in B♭ which has seen the most widespread use. The most common valve trombone has three piston valves, and plays just like a trumpet but an octave lower. They are built in either short or long form.
A rotary valve is a type of valve in which the rotation of a passage or passages in a transverse plug regulates the flow of liquid or gas through the attached pipes. The common stopcock is the simplest form of rotary valve. Rotary valves have been applied in numerous applications, including:
The cimbasso is a low brass instrument that covers the same range as a tuba or contrabass trombone. First appearing in Italy in the early 19th century as an upright serpent, the term cimbasso came to denote several instruments that could play the lowest brass part in 19th century Italian opera orchestras. The modern cimbasso design, first appearing as the trombone basso Verdi in the 1880s, has four to six rotary valves, a forward-facing bell, and a predominantly cylindrical bore. These features lend its sound to the bass of the trombone family rather than the tuba, and its valves allow for more agility than a contrabass trombone. Like the modern contrabass trombone, it is most often pitched in F, although models are occasionally made in E♭ and low C or B♭.
The superbone is a hybrid tenor trombone in B♭ that has both a slide like a regular trombone and a set of valves like a valve trombone.
The bass trombone is the bass instrument in the trombone family of brass instruments. Modern instruments are pitched in the same B♭ as the tenor trombone but with a larger bore, bell and mouthpiece to facilitate low register playing, and usually two valves to fill in the missing range immediately above the pedal tones.
Marching brass instruments are brass instruments specially designed to be played while moving. Most instruments do not have a marching version - only the following have marching versions:
Valve oil is a lubricant for valves of brass instruments. It is typically mostly mineral oil with a small amount of other ingredients, although synthetic oils are increasingly available.
The Hagmann Free-Flow Valve is a trademarked brass instrument valve design developed by Swiss musician and instrument technician René Hagmann, first introduced for trombone F attachments in 1990. His intention was to address some of the geometrical limitations of the regular rotary valve, as well as the reliability and maintenance issues of the popular Thayer axial flow valve that arise from its relatively complex design.
The Kuhlohorn is a small flugelhorn in B♭. This is a specially designed brass wind-instrument played using a deep bowled mouth piece. Chief characteristics are its oval design and integrated, usually conical tubing. Kuhlohorns commonly are featuring a conical tuning slide, at the second curved pipe section after the rotary valves.
Ernst Albert Couturier was best known as a cornet player who toured as a "virtuoso" performer on the concert programs of bands of the day. He promoted the Holton Band Instrument Company for a decade in that capacity before applying his own unique inventions to the production of his own line of brass band instruments between 1918 and 1923.
Brass instrument valves are valves used to change the length of tubing of a brass instrument allowing the player to reach the notes of various harmonic series. Each valve pressed diverts the air stream through additional tubing, individually or in conjunction with other valves. This lengthens the vibrating air column thus lowering the fundamental tone and associated harmonic series produced by the instrument. Valves in brass instruments require regular maintenance and lubrication to ensure fast and reliable movement.
