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A440 is often used as a tuning reference in just intonation regardless of the fundamental note or key. The US time and frequency station WWV broadcasts a 440 Hz signal at two minutes past every hour, with WWVH broadcasting the same tone at the first minute past every hour. This was added in 1936 to aid orchestras in tuning their instruments. [11]
A tuning fork is an acoustic resonator in the form of a two-pronged fork with the prongs formed from a U-shaped bar of elastic metal (usually steel). It resonates at a specific constant pitch when set vibrating by striking it against a surface or with an object, and emits a pure musical tone once the high overtones fade out.
For example, a 1740 tuning fork associated with Handel is pitched at A = 422.5 Hz, ⓘ while a specimen from 1780 is pitched at A = 409 Hz, ⓘ about a quarter-tone lower. [4] A tuning fork that belonged to Ludwig van Beethoven around 1800, now in the British Library, is pitched at A = 455.4 Hz ⓘ, well over a half-tone higher. [5]
An A440 tuning fork A common method of tuning the piano begins with tuning all the notes in the "temperament" octave in the lower middle range of the piano, usually F3 to F4. A tuner starts by using an external reference, usually an A440 tuning fork , (or commonly a C523.23 tuning fork) to tune a beginning pitch, and then tunes the other notes ...
To go from A 4 up two semitones (one whole tone) to B 4, multiply 440 twice by the twelfth root of two (or once by the sixth root of two, approximately 1.122462). To go from A 4 up three semitones to C 5 (a minor third ), multiply 440 Hz three times by the twelfth root of two (or once by the fourth root of two, approximately 1.189207).
Removed: Invented in 1752 by George Friderich Handel's trumpeter John Shore,. The Oxford Companion to Music says 1711. -- Tarquin 1711 is correct. Handel left one of his tuning forks to some musical society of the other in London in 1751 (the details escape me), so it could hardly have been invented a year later.
The open D tuning (D–A–D–F ♯ –A–D), also called "Vestapol" tuning, [29] is a common open tuning used by European and American/Western guitarists working with alternative tunings. The Allman Brothers Band instrumental " Little Martha " used an open D tuning raised one half step, giving an open E♭ tuning with the same intervallic ...
A440 or A-440 may refer to: A440 (pitch standard) A440 highway (Australia), a road in Victoria, Australia; Quebec Autoroute 440 (Laval) Quebec Autoroute 440 (Quebec City)
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