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Water keys on a trumpet. A water key is a valve or tap used to allow the drainage of accumulated fluid from wind instruments. It is otherwise known as a water valve or spit valve. They are most often located at a low bend, where gravity assists fluid collection.
The oil also completes the seal between the valve casing and the piston or rotor. Although a clean and unoiled valve of a well maintained instrument should move without unusual force, the inside of a musical instrument is a very inhospitable environment for a delicate valve mechanism. The musician constantly blows warm moist air through the valve.
The first of these types was the Stölzel valve, bearing the name of its inventor Heinrich Stölzel, who first applied these valves to the French horn in 1814. Until that point, there had been no successful valve design, and horn players had to stop off the bell of the instrument, greatly compromising tone quality to achieve a partial chromatic scale.
Piston valve in a brass instrument. A piston valve is a device used to control the motion of a fluid or gas along a tube or pipe by means of the linear motion of a piston within a chamber or cylinder. [1] Examples of piston valves are: The valves used in many brass instruments; The valves used for pneumatic propulsion
Thayer axial flow valve on a tenor trombone. The axial flow valve, or Thayer valve, is a brass instrument valve design patented in 1978 by Orla Ed Thayer. [1] Designed with assistance from Zigmant Kanstul, it was originally intended to replace the traditional rotary valve on the French horn, but instead revolutionized the design of trombone valve attachments. [2]
Since this still lacks scientific confirmation, rampant speculation continues about potential extra-terrestrial theories for these "trumpet noises." But don't count NASA as a UFO-doubter just yet.
Most leadpipes are permanently fixed in the instrument, though aftermarket changes, usually carried out by a repairer, are quite common. [1] Some instruments have a detachable leadpipe to allow changing key; to permit the player to easily select different playing and tonal characteristics; [2] or simply to act as the instrument's main tuning slide where the shape, or other design issues, make ...
Trumpet valve bypass (depressed) The trumpet is constructed of brass tubing bent twice into a rounded oblong shape. [15] As with all brass instruments, sound is produced by blowing air through slightly separated lips, producing a "buzzing" sound into the mouthpiece and starting a standing wave vibration in the air column inside the trumpet.