![French Horn back](https://upload.wikimedia.org/wikipedia/commons/e/e8/French_Horn_back.svg)
In a
brass instrument
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 a ...
, a leadpipe or mouthpipe is the
pipe
Pipe(s), PIPE(S) or piping may refer to:
Objects
* Pipe (fluid conveyance), a hollow cylinder following certain dimension rules
** Piping, the use of pipes in industry
* Smoking pipe
** Tobacco pipe
* Half-pipe and quarter pipe, semi-circula ...
or
tube
Tube or tubes may refer to:
* ''Tube'' (2003 film), a 2003 Korean film
* ''The Tube'' (TV series), a music related TV series by Channel 4 in the United Kingdom
* "Tubes" (Peter Dale), performer on the Soccer AM television show
* Tube (band), a ...
into which the
mouthpiece is placed.
For example, on the illustration of a
trombone
The trombone (german: Posaune, Italian, French: ''trombone'') is a musical instrument in the Brass instrument, brass family. As with all brass instruments, sound is produced when the player's vibrating lips cause the Standing wave, air column ...
, the leadpipe would be between #3 and #4, the mouthpiece and the slide lock ring. In the illustration of a
French horn
The French horn (since the 1930s known simply as the horn in professional music circles) is a brass instrument made of tubing wrapped into a coil with a flared bell. The double horn in F/B (technically a variety of German horn) is the horn most ...
, the leadpipe is #2.
Detachable leadpipes
Most leadpipes are permanently fixed in the instrument, though aftermarket changes, usually carried out by a repairer, are quite common.
Some instruments have a detachable leadpipe to allow changing
key
Key or The Key may refer to:
Common meanings
* Key (cryptography), a piece of information that controls the operation of a cryptography algorithm
* Key (lock), device used to control access to places or facilities restricted by a lock
* Key (map ...
; to permit the player to easily select different playing and tonal characteristics;
or simply to act as the instrument's main tuning slide where the shape, or other design issues, make this the best place for it. The use of the leadpipe as the main tuning slide is particularly common in
flugelhorn
The flugelhorn (), also spelled fluegelhorn, flugel horn, or flügelhorn, is a brass instrument that resembles the trumpet and cornet but has a wider, more conical bore. Like trumpets and cornets, most flugelhorns are pitched in B, though some ...
s and
piccolo trumpet
The piccolo trumpet is the smallest member of the trumpet family, pitched one octave higher than the standard B trumpet. Most piccolo trumpets are built to play in either B or A, using a separate leadpipe for each key. The tubing in the B piccol ...
s though not unknown in other instruments. For example, in the Selmer piccolo trumpet in the photograph, the leadpipes are used for all three functions: the aftermarket Blackburn pipes shown have different playing characteristics from those of the stock Selmer pipe;
the choice of leadpipe determines whether the instrument is in A or B; it is also the main tuning slide.
See also
*
Bocal
A bocal is a curved, tapered tube, which is an integral part of certain woodwind instruments, including double reed instruments such as the bassoon, contrabassoon, English horn, and oboe d'amore, as well as the larger recorders. In the double ree ...
*
Venturi effect
The Venturi effect is the reduction in fluid pressure that results when a fluid flows through a constricted section (or choke) of a pipe. The Venturi effect is named after its discoverer, the 18th century Italian physicist, Giovanni Battista V ...
References
Brass instrument parts and accessories
{{brass-instrument-stub