An agraffe is a part used principally on grand pianos. The agraffe is a guide at the tuning-pin end of the string, screwed into the plate, with holes through which the strings pass. It positions the strings vertically and laterally, determines the string's speaking length, and offers a clean termination from which the string can vibrate. Agraffes are used in the bass, tenor, and lower treble, but commonly give way to a capo d'astro bar in the upper treble.

Agraffes are usually made of solid brass, and come in 1, 2 or 3-string configurations. For American pianos they are available in two sizes (1/4" and 7/32" finely threaded studs). The string holes are typically countersunk to eliminate the likelihood of buzzing, even as the agraffes wear. They are installed with their width perpendicular to the strings.

See also

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References

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  • Good, Edwin. Giraffes, Black Dragons, and Other Pianos. Stanford, Calif.: Stanford University Press, 2001. ISBN 9780804745499
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Innovations in the piano

New South Wales, Australia, makes a piano in which there are bridge agraffes. Agraffes are a kind of sturdy metal clip that hold the strings in place. They

Sohmer & Co.

piano, and also manufactured pianos with aliquot stringing and bridge agraffes, as well as Cecilian "all-inside" player pianos and Welte-Mignon-Licensee

Action (piano)

flange screw Drop screw Hammer shank Repetition lever Hammer Back check Damper lever Damper tray Spoon Damper String Plate Agraffe Tuning pin Pin block

Piano

for each note in the treble. The use of a Capo d’Astro bar instead of agraffes in the uppermost treble allowed the hammers to strike the strings in their

Żupan

show the differently colored lining.[verification needed] Eventually an agraffe (clasp) or button was attached to this dog-ear sleeve-end to pin it to

Bartolomeo Cristofori

vibrating length of the string that is close to the hammers is either an agraffe or the capo d'astro bar; these devices pull the string in the direction

Terminal World

Skullboys and the unallied angels. The book finishes with Curtana and Agraffe wondering what changes would befall the planet and Spearpoint after Nimcha

Wm. Knabe & Co.

Charles Keidel. In 1866, Wm Knabe & Co. introduced their agraffe treble, a piano whose agraffe was threaded into a heavier piece of brass instead of directly