Hornbostel - Sachs
Electrophones
Electrical signals are passed to a loudspeaker to produce sound. The signals are produced using materials that generate acoustic sound, or by mechanically driven signal sources. Modules and configurations of acoustic, vibratory mechanisms (often resembling traditional acoustic instruments) and electronic circuitry such as transducers and amplifiers.
Electro-acoustic instruments and devices
Electro-acoustic idiophones
Electro-acoustic membranophones
Electro-acoustic chordophones
Electro-acoustic aerophones
Transducers