Music: Switchboard Conducting

How would a violinist whirring through Rimsky-Korsakov's Flight of a Bumblebee react if a red light suddenly flashed on his music stand? If white and blue lights played before him constantly, sometimes at slow speed, sometimes hectically fast? The violinist, claims round, bushy-haired Vladimir Karapetoff, professor of electrical engineering at Cornell University, would perform better than he does now when all he has to guide him are "the wavy motions of two arms and a recurring expression of rage on a conductor's face." To prove his point Professor Karapetoff has invented a switchboard...

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