Which category is defined by instruments where the frame vibrates to produce sound?

Which category is defined by instruments where the frame vibrates to produce sound?

• A. Aerophones
• B. Idiophones
• C. Chordophones
• D. Membranophones

Answer: (B)

When sound comes from the instrument’s own vibrating body, that instrument is classified as an idiophone. The frame or the material of the instrument itself vibrates to create the sound, without relying on strings, membranes, or air columns. This fits the description of the frame vibrating to produce sound, as the energy is generated directly by the instrument’s solid body. In other categories, the source of vibration is different: aerophones rely on a vibrating air column, membranophones use a vibrating membrane, and chordophones produce sound through vibrating strings. So the best match for a frame-driven vibration is the idiophone category.

When sound comes from the instrument’s own vibrating body, that instrument is classified as an idiophone. The frame or the material of the instrument itself vibrates to create the sound, without relying on strings, membranes, or air columns. This fits the description of the frame vibrating to produce sound, as the energy is generated directly by the instrument’s solid body.

In other categories, the source of vibration is different: aerophones rely on a vibrating air column, membranophones use a vibrating membrane, and chordophones produce sound through vibrating strings. So the best match for a frame-driven vibration is the idiophone category.