If one surfs around various websites and social media postings, you will notice much interest in different “healing” frequencies. Besides the Solfeggio Frequencies, another frequency that many people are interested in is 432 Hz.
Many people feel that tuning to this frequency (for the note of “A”) has more therapeutic abilities than the standard reference pitch of 440 Hz.
There are dozens of videos promoting this frequency as well as many others offering contrasting thoughts. This one, made by Adam Neely, called Testing 432 Hz Frequencies (and temperaments) presents an outstanding overview of various other issues that come into play in addition to which specific frequency is used a reference tuning note. It’s only about 14 minutes long and well worth the time. Enjoy!