More on this....music used to be tuned to 432 hz. Which is what human and nature resonation is. In the 1940's circa ww2 time a well known man named Joey Goebbels found out 440hz puts us in a more anxious mindset and music at this hz range increases anxiety and stress. Making people more suseptable to both.

Music at 432 hz lowers heart rate and the blood system. Outs us in a more relaxed and in tune frequency and state with nature around us. A babies cry, a cats purr a bees buzz all these are 432hz........And most music workd before 1950-something....are all 432hz