Friction idiophone

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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

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.

Friction sticks (131)[edit]

131.1 Individual friction sticks.

131.2 Sets of friction sticks.

131.21 Without direct friction.

131.22 With direct friction.

Friction plaques (132)[edit]

132.1 Individual friction plaques.

132.2 Sets of friction plaques.

Friction vessels (133)[edit]

133.1 Individual friction vessels.

133.2 Sets of friction vessels.

See also[edit]