Examples of electromechanical sound used in Electro

Examples of electromechanical sound producing devices include the telharmonium, Hammond organ, and the electric guitar, which are typically made loud enough for performers and audiences to hear with an instrument amplifier and speaker cabinet. Purely electronic instruments do not have vibrating strings, hammers, or other sound-producing mechanisms. Electronic instrument sounds can be achieved using devices such as the theremin, sound synthesizer, and computer.