Leon Theremin — Russian Inventor born on August 15, 1896, died on November 03, 1993

Lev Sergeyevich Termen, or Léon Theremin in the United States, was a Russian and Soviet inventor, most famous for his invention of the theremin, one of the first electronic musical instruments and the first to be mass produced. He also devised the interlace technique for improving the quality of a video signal, still widely used in video and television technology. His listening device, "The Thing", hung for seven years in plain view in the United States Ambassador's Moscow office and enabled Soviet agents to eavesdrop on secret conversations. It is considered a predecessor of RFID technology... (wikipedia)

There was one man who was interested in the color of music, the connection between light and music, and that was Einstein.
I conceived of an instrument that would create sound without using any mechanical energy, like the conductor of an orchestra. The orchestra plays mechanically, using mechanical energy; the conductor just moves his hands, and his movements have an effect on the music artistry.