Theremin worked at the Moscow Conservatory of Music for 10 years where he taught, and built theremins, electronic cellos and some terpsitones (another invention of Theremin). There he was discovered by Harold Schonberg, the chief music critic of "The New York Times", who was visiting the Conservatory. But when an article by Schonberg appeared mentioning Theremin, the Conservatory's Managing Director declared that "electricity is not good for music; electricity is to be used for electrocution" and had his instruments removed from the Conservatory. Further electronic music projects were banned, and Theremin was summarily dismissed.