Answer:
IDIOPHONES
—Idiophones are instruments that create sound through vibrating themselves. They differ from chordophones and membranophones because the vibrating is not the result of strings or membranes. Under the Hornbostel-Sachs classifcation system, idiophones are further divided into struck idiophones and plucked idiophones.
CHORDOPHONE
— A chordophone is a musical instrument that makes sound by way of a vibrating string or strings stretched between two points. It is one of the four main divisions of instruments in the original Hornbostel-Sachs scheme of musical instrument classification.
MEMBRANOPHONE
— A membranophone is any musical instrument which produces sound primarily by way of a vibrating stretched membrane. It is one of the four main divisions of instruments in the original Hornbostel-Sachs scheme of musical instrument classification.
AEROPHONE
— An aerophone (/ˈɛəroʊfoʊn/) is a musical instrument that produces sound primarily by causing a body of air to vibrate, without the use of strings or membranes (which are respectively chordophones and membranophones), and without the vibration of the instrument itself adding considerably to the sound (or idiophones).
