- Electronic Keyboard: Uses electronic circuitry to generate sound, and may also feature a variety of built-in sounds, rhythms, and effects.
- Harpsichord: A historical keyboard instrument that produces sound by plucking strings with quills or leather plectra.
- Organ: A keyboard instrument that produces sound by driving pressurized air through pipes of various lengths and shapes.
- Synthesizer: An electronic keyboard instrument that can generate a wide range of sounds through analog or digital synthesis.