SOLFEGGIO FREQUENCIES 639 HZ FREQUENCY CAN BE FUN FOR ANYONE

Many people truly feel happier, relaxed and less anxious throughout or after their initially listening session. But to have the greatest extended-expression benefits from the frequencies, you’ll want to own no less than a few 15-moment sessions weekly for four to six weeks.The A4 at 440 Hz is highlighted over the chart. For additional geeking out