The Frequency They Changed — And Why Everything Sounds Wrong

Transcript

There is a tuning fork in the British Library. It  belonged to Ludwig van Beethoven. It vibrates at four hundred fifty five point four hertz. Not  four forty. Not four thirty two. A frequency no one alive is fighting for. Every piano in  every concert hall on this planet is tuned to a standard Beethoven never used. His fork sits  in a glass case. ... Read More