Friction idiophone

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Friction idiophones is designation 13 in the Hornbostel-Sachs system of musical instrument classification. These idiophones produce sound by being rubbed either against each other or by means of a non-sounding object. Instruments of this type are not very common; possibly the best known examples are the musical saw and the nail violin.

Glass harmonica; sound produced by friction of the fingers against the rotating glass
Glass harp; sound produced by friction of the fingers rotating against the wine glass rims
Terpodion; sound produced by friction of wood or metal arms against a rotating cylinder
Chladni plate example; sound produced by friction of the bow against a plate such as a metal rectangle

According to musicologist Curt Sachs:[1]

... It is essential to distinguish between rubbing and scraping. The latter results in a series of beats cause by passing a stick over a notched surface; [whereas] friction is based on adhesion....On a higher level we find...the glass harmonica.

Friction sticks (131)

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131.1 Individual friction sticks.

131.2 Sets of friction sticks.

131.21 Without direct friction.

131.22 With direct friction.

Friction plaques (132)

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132.1 Individual friction plaques.

132.2 Sets of friction plaques.

Friction vessels (133)

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133.1 Individual friction vessels.

133.2 Sets of friction vessels.

See also

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References

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Notes

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  1. ^ Sachs, Curt (1940). The History of Musical Instruments, p.456-7. W. W. Nortan & Company, Inc. ISBN 0-393-02068-1