List of musical instruments by Hornbostel–Sachs number: 421

Edge-blown aerophones is one of the categories of musical instruments found in the Hornbostel–Sachs system of musical instrument classification. In order to produce sound with these aerophones, the player makes a ribbon-shaped flow of air with their lips (421.1), or their breath is directed through a duct against an edge (421.2).

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