154 FREQUENCY IS KEY TO EVERYTHING 💥 (twitter.com) posted 174 days ago by Joys1Daughter 174 days ago by Joys1Daughter +158 / -4 69 comments share 69 comments share save hide report block hide replies
It refers to the 4th A note on a standard piano keyboard. Standard is a 440hz A whereas 432hz is an alternate tuning. 528 would fall between a C and C# so I don't get that either.