Tuning the reference pitch of your musical piece to 432 Hz will not give you the promised magical healing effect. (Darn I wish it would have been that simple!) Just listening to the frequency of 432 Hz itself (out of a musical framework) does generally not have that nature-aligning effect either. The matter is more complex than that. It unavoidably leads us to a highly overseen question: which temperament is being used? I will also share some possible benefits of tuning to 43