Well Tempered
July 28th, 2008
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J.A. MICHELL GYRODEC SILVER ARM BOARD for the WELL TEMPERED TONEARM - Brand New |  |
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US $79.95 | 19d 22h 30m |
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Digital stylus force gauge for Linn, Rega Well Tempered | |
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US $77.19 | 14d 9h 20m |
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Well Tempered Labs Ad, 1989, Signature, Classic,Article | |
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US $7.00 | 1d 14h 39m |
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Well Tempered
In respect to music history, what is a "well tempered Clavier"?
I'm trying to prepare notes for an exam tomorrow but I don't have any information on this. Thanks...
At that time, there was a difficulty with equal temperament, meaning that it was difficult for musicians to tune the instruments so all were in tune together, mostly to the keyboard. On a keyboard, today we take for granted that Ab is also G#, but they really aren't the same tone. There is a very slight pitch difference. It wasn't until Bach figured out how to temper the keyboard so that it would be in tune with every other instrument, and make tuning uniform. Then, he composed The Well-Tempered Clavier, in which he uses all the keys in tonal music.
EDIT: Thanks, and thumbs up to suhwahaksaeng!
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J.A. MICHELL GYRODEC SILVER ARM BOARD for the WELL TEMPERED TONEARM - Brand New | |
|
US $79.95 | 19d 22h 30m |
|
Digital stylus force gauge for Linn, Rega Well Tempered | |
|
US $77.19 | 14d 9h 20m |
|
Well Tempered Labs Ad, 1989, Signature, Classic,Article | |
|
US $7.00 | 1d 14h 39m |
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J.S.Bach/The Well Tempered Clavier $6.49 J.S.Bach/The Well Tempered Clavier |
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The Well-Tempered Clavier (Hewitt) $19.49 The Well-Tempered Clavier (Hewitt) |
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Well-Tempered Clavier, The (Gould) $4.99 Well-Tempered Clavier, The (Gould) |
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Well-Tempered Clavier (Box) $24.99 Well-Tempered Clavier (Box) |
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Well Tempered Clavier $17.99 Well Tempered Clavier |
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Well-Tempered Clavier $37.99 Well-Tempered Clavier |
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Well Tempered Clavier (Complete) $54.99 Well Tempered Clavier (Complete) |
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Well Tempered Clavier 1 $24.99 Well Tempered Clavier 1 |
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Well-Tempered Clavier 2 $32.99 Well-Tempered Clavier 2 |
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Well Tempered Clavier (Rmst) $37.99 Well Tempered Clavier (Rmst) |
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Well Tempered Clavier I $17.99 Well Tempered Clavier I |
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Well Tempered Clavier Book 2 $37.99 Well Tempered Clavier Book 2 |
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Well-Tempered Clavier Book 2 $24.99 Well-Tempered Clavier Book 2 |
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Well-Tempered Clavier (Complete) (Comp) $32.99 Well-Tempered Clavier (Complete) (Comp) |
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Well-Tempered Clavier, Book 2 $27.99 Well-Tempered Clavier, Book 2 |
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Well-Tempered Clavier, Book 1 $32.99 Well-Tempered Clavier, Book 1 |
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Bach, Fugue #1, C Major (Well-Tempered Clavier Book I)
Tempering Metals
Tempering is the process of making steel tough after it has been hardened, so that it will hold a cutting edge and resist cracking. Tempering makes the grain finer and the metal stronger. It does not affect the hardness, but increases the elastic limit and reduces the brittleness of the steel. In that tempering is usually performed immediately after hardening, it might be considered as a continuation of the former process.
The work or tool to be tempered is slowly heated to a cherry red and the cutting end is then dipped into water to a depth of 1/2 to 3/4 inch above the point (Figure 6). As soon as the point cools, still leaving the tool red above the part in water, remove the work from the bath and quickly rub the end with a fine emery cloth.
As the heat from the uncooled part gradually heats the point again, the color of the polished portion changes rapidly. When a certain color is reached, the tool should be completely immersed in the water until cold.
For lathe, planer, shaper and slotter tools, this color should be a light straw.
Reamers and taps should be cooled from an ordinary straw color.
Drills, punches and wood working tools should have a brown color.
Blue or light purple is right for cold chisels and screwdrivers.
Dark blue should be reached for springs and wood saws.
Darker colors than this, ranging through green and gray, denote that the piece has reached its ordinary temper, that is, it is partially annealed.
After properly hardening a spring by dipping in lard or fish oil, it should be held over a fire while still wet with the oil. The oil takes fire and burns off, properly tempering the spring.
Remember that self-hardening steels must never be dipped in water, and always remember for all work requiring degrees of heat, that the more carbon, the less heat.
About the Author
This article was an exerpt from "The Welding
Bible". The Welding Bible is your complete source of methods, charts and information about gas and arc welding, brazing, cutting and properties of metals.
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