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The axial flow valve, or Thayer valve, is a brass instrument valve design patented in 1978 by American inventor Orla Ed Thayer. [1] Designed with assistance from instrument maker Zigmant Kanstul, it was originally intended to replace the traditional rotary valve on the French horn , but instead revolutionized the design of trombone 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.
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 often used by players in professional orchestras and bands, although the descant and triple horn have become increasingly popular.
English: Modern french double horn in F/B-flat and Kruspe valve ordering (Besson BE 702), seen from back side, with numbered parts: Mouthpiece; Leadpipe; Adjustable handrest (Ducks foot) Spit Valve; Fourth valve for changing between F and B-flat pitch; Valve levers; Rotary valves; Slides; Long tubing for F pitch with slide; General slide
The player presses the button and blows into the horn to drain the water. The Amado design has the advantage that it presents less of a deviation from a smooth inner slide wall compared to the larger-volume drain port in the traditional design. Nevertheless, most modern horns are still fitted with the traditional design of water key. [citation ...
The natural horn is a musical instrument that is the predecessor to the modern-day (French) horn (differentiated by its lack of valves). Throughout the seventeenth and eighteenth centuries, the natural horn evolved as a separation from the trumpet by widening the bell and lengthening the tubes. [ 1 ]
However, playing a 3rd space C (F-horn, open) and repeating the stopped horn, the pitch will lower a half-step to a B-natural (or 1/2 step above B ♭, the next lower partial). The hand horn technique developed in the classical period, with music pieces requiring the use of covering the bell to various degrees to lower the pitch accordingly.
German horns have lever-operated rotary valves, The term French horn was another name for this same horn, and the Vienna horn which uses double-piston valves, or pumpenvalves. A horn without valves is known as a natural horn, changing pitch along the natural harmonics of the instrument. Pitch may also be controlled by the position of the hand ...