A musician uncovers a conspiracy theory that the Nazis changed the global music tuning to 440 Hertz in 1939, believing it would make people more aggressive and easier to manipulate. She embarks on a journey to explore the power of sound, meeting passionate sound enthusiasts who reveal its potential to heal, manipulate, and even be used as a weapon.
Oh, It Hertz!
A musician's sonic journey uncovers a haunting connection between the emotional impact of music and the dark legacy of the Nazi era.
