any of various devices or contrivances that can be used to produce musical tones or sounds

(music) an electronic simulation of a pipe organ

(music) an electronic instrument (usually played with a keyboard) that generates and modifies sounds electronically and can imitate a variety of other musical instruments

an electronic musical instrument; melodies can be played by moving the right hand between two rods that serve as antennas to control pitch; the left hand controls phrasing

an electronic musical instrument similar in some respects to a synthesizer but, instead of generating sounds, it uses recordings (or "samples") of sounds that are loaded or recorded into it by the user and then played back by means of the sampler program itself, a keyboard, sequencer or other triggering device to perform or compose music.

a monophonic electronic musical instrument that has its manual made of a resistor wire over a metal plate, which is pressed to create a sound.