Jon Johnson Report post Posted July 27, 2016 In 1975 Trumpet player Nyle Steiner, already running a thriving modular synthesizer company, added a new product to his company with the EVI. (Electronic Valve Instrument). This new first generation instrument was for wind players to play and control synthesizers. The original unit only sent one cv signal by blowing through the mouthpiece. View full synthesizer Share this post Link to post Share on other sites