[jo-ma]

A synthesizer, or synth, is an electronic instrument that generates sound through a combination of mathematical calculations and electronic signals. It can create a wide variety of sounds, not just those that mimic other instruments.

A digital piano, on the other hand, is designed to simulate the sound and feel of an acoustic piano. It typically has weighted keys that replicate the feel of an acoustic piano’s hammer action. While it can also produce other sounds, its primary function is to convincingly replicate the sound of a piano.