The sound of a simple instrument usually consisting of metal cast in the shape of a hollow cup, whose sides form a resonator which vibrates in a single tone upon being struck by a "clapper" suspended within, or by a separate mallet or hammer.
The sound of a wind instrument played by using the mouth to direct air into or out of one or more holes along a mouthpiece. Behind each hole is a chamber containing at least one reed, producing a specific note or notes.
The sound of a family of box-shaped bellows-driven musical instruments played by pressing buttons or keys which allow air to flow across strips of brass or steel, called reeds, that vibrate to produce sound inside the body.
The sound of an early electronic musical instrument controlled without physical contact via two metal antennas that sense the relative position of the player's hands and control oscillators for frequency with one hand, and amplitude with the other.