Horn
Early crescent-shaped
horns had, by at least the 16th century, become hoop-shaped,
ideal for mounted hunters to wear over their shoulders. Horns
were first used in opera in Venice in 1639: primitive instruments
capable of playing only one key. 'Crooks' were invented about
1703. These metal tubes were added to the horn, allowing another
key to sound. Thus, a hornist changing key in mid-movement, even
up to Beethoven's day, was a protracted and noisy procedure.
Before then, the only way to escape from the basic key without
changing grooks was to modify certain notes by placing a fist in
the bell, or by ascending to the the top range were available
notes were closer together. Realizing this, composers
concentrated on the horn's high register and a school of horn
virtuosos, many from Bohemia, emerged to play concertos and the
breathtakingly high parts in opera and symphony.
Various devices, some
of amazing complexity, were tried to make to horn more versatile.
The breakthrough came in 1815, when Silesian instrument makers
Stolzel and Bluhmel invented a piston valve horn. The double horn
arrived in 1865, a design which has been refined to the modern
F/B flat horn with four rotary valves.
Midi: Mozart's Horn Concerto
No.4 in E flat Major, K.495, 3rd Movement
The
horn, the horn, the lusty horn. Is not a thing to laugh to scorn.
-- William Shakespeare in As You Like It


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