The proliferation of electricity in the 20th century led to a new category of musical instruments: electronic instruments, or electrophones.[114] The vast majority produced in the first half of the 20th century were what Sachs called "electromechanical instruments"; they have mechanical portion that produce sound pulsation picked up and amplified https://seobookmarkpro.com/story17765457/5-faits-simples-sur-la-magasin-d-instruments-de-musique-d%C3%A9crite