A blown idiophone is one of the categories of musical instruments found in the Hornbostel-Sachs

Hornbostel-Sachs

Hornbostel–Sachs is a system of musical instrument classification devised by Erich Moritz von Hornbostel and Curt Sachs, and first published in the Zeitschrift für Ethnologie in 1914. An English translation was published in the Galpin Society Journal in 1961...

 system of musical instrument classification. These idiophones produce sound by the movement of air. An example of a musical instrument like this is the Aeolsklavier

Aeolsklavier

An aeolsklavier is a musical instrument with sounding elements that vibrate when air is blown onto them.-Materials:Aeolsklaviers can be made of various materials, but the sounding elements are usually made of wood...

, an instrument consisting of several pieces of wood which vibrate when air is blown onto them by a set of bellows

Bellows

A bellows is a device for delivering pressurized air in a controlled quantity to a controlled location.Basically, a bellows is a deformable container which has an outlet nozzle. When the volume of the bellows is decreased, the air escapes through the outlet...

.

This group is divided in the following two sub-categories:

Blown plaques (142)

142.1 Individual blown plaques.

142.2 Sets of blown plaques.