Are Synthesizers Keyboards?

Synthesizers are often associated with keyboards because many popular models, like the Minimoog or Korg MS-20, feature piano-style keys as their primary interface. This design allows musicians to play notes melodically, similar to a traditional keyboard instrument. In fact, the term "keyboard synthesizer" is common, reflecting how synths evolved from electronic organs and early voltage-controlled modules to include familiar playing surfaces.

However, not all synthesizers are keyboards. Modular synths, for instance, are rack-mounted or desktop units without keys, relying on sequencers, controllers, or external MIDI devices for input. Drum machines and grooveboxes with synth engines, like the Roland TR-808, use pads or buttons instead. This modularity highlights that synthesizers are fundamentally sound generators, not defined by their control method.

The keyboard format became dominant in the 1970s for its accessibility to pianists transitioning to electronic music. Bands like Emerson, Lake & Palmer popularized keyboard synths in progressive rock. Today, options range from full-sized weighted keys to compact keyless modules, catering to diverse needs.

In summary, while many synthesizers incorporate keyboards, they aren't exclusively so. The core is electronic sound synthesis, and the interface—be it keys, knobs, or touchscreens—serves the musician's preference.