Who And Why Changed Music's Tuning Frequency From 432 To 440 Hz
La is the musical tone, used to tune a musical instrument, at least that is the case in the Westen world of music. There is a simple tool called a Tuning fork, that gives the exact tone of La. The chemical compounds and the way it is being made will always generate a vibration of 440 cycles per second or Hertz.
In Nazi Germany, the Minister Of Propaganda Joseph Goebbels ordered in 1939 to replace all tuning forks to 440Hz. Before that period instruments were tuned 8 Hz lower to 432Hz.
When you compare the same composition in 432Hz and 440Hz there's definitely a difference. There are many theories why we still listen to music at 440Hz, some even claim that 432 is in harmony with the vibration Universe and now we are blocked from this "channel". Personally, I don't agree with the conspiracy theories, partly because I work with music and audio for a living and it contradicts my understanding of sound and how I utilize it.
To me, 440Hz and 432Hz are different flavors of the same thing. Some people prefer to tune their instruments to 432hz others to 440Hz. It's more like a personal preference.
Nevertheless, let's check out some of the theories out there.
https://steemit.com/music/@rossenpavlov/why-and-why-changed-music-s-tuning-frequency-from-432-to-440-hz