I watched this video and i think about base tone
my thinking.
Base tone is very important to music. it decide character of music. I calculate frenquency depend on resonance of earth rotation . it s base tone is 437.5hz(3500/8, 1/86400*2^25 * 1.0954^2). 440hz is faster than this. that is why 440hz more powerful and aggressive. and 432hz is slow than 437.5hz . that is why 432 hz is more soft and slow and weak. it s same as effect of color. some red has feeling devil and attack. but some red is feeling hot and passion. same red. but little different frequency. standard tone is i think it s stupid thinking. we can change base tone what we want.
and then thinking about base tone is very importance. we cant use only 440hz...if using only 440hz , it s dangerous. because all musical character has same effect same character.
relative writing.
title : [supprise knowlege!] I discover traditional korea musical tone frequency is equl to earth cycle....
link : https://steemit.com/science/@donworry8/supprise-knowlege-i-discover-traditional-korea-musical-tone-frequency-is-equl-to-earth-cycle