[ja-ki]

A keyboard can be a synthesizer, but not all keyboards are synthesizers. The main way to tell if a keyboard is a synthesizer is by checking its features and specifications.

1. **MIDI Capability**: Synthesizers often have MIDI (Musical Instrument Digital Interface) capabilities. This means they can receive and send data to other MIDI-compatible devices.

2. **Oscillators**: Synthesizers use oscillators to generate sounds. If a keyboard has oscillators, it may be a synthesizer.

3. **LFOs and Envelopes**: Synthesizers often have Low Frequency Oscillators (LFOs) and Envelopes for modulating sounds.

4. **Sounds and Patches**: Synthesizers can create a wide variety of sounds, also known as patches. If a keyboard has a