I am here with a dozen other souls, leaning over a standardized, two-hour, multiple-choice test that is offered monthly by the Central Florida chapter of Mensa, the international, high-IQ society. Gordon Shaw, 72, the physicist whose research on classical music’s effect on the brain produced an often-cited study that showed listening to Mozart raises a person’s IQ, died of kidney. in D Major. Forget making your baby listen to Mozart….