Membranophone vs. Idiophone

Membranophonenoun

(music) Any musical instrument that produces sound via the vibration of a stretched membrane.

Idiophonenoun

Any musical instrument that produces its sound by its own vibration (without any strings or membranes).

Membranophonenoun

a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretch across each end

Idiophone

An idiophone is any musical instrument that creates sound primarily by the vibration of the instrument itself, without the use of air flow (as is the case with aerophones), strings (chordophones), membranes (membranophones) or electricity (electrophones). It is the first of the four main divisions in the original Hornbostel–Sachs scheme of musical instrument classification (see List of idiophones by Hornbostel–Sachs number).

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.