What is 741 Hz used for?

741 Hz is used to clear your head: before writing, during focused work, or when you need to find the words for something. It's brighter than the lower solfeggio tones, so it feels more alert than sleepy.
Where does 741 Hz come from?
741 Hz is paired with sol, from the line solve polluti (“loosen what is stained”) in the hymn Ut queant laxis. That line is where its “cleansing” association comes from.
How to listen to 741 Hz
- Use a low, comfortable volume. A soft tone is easier to settle into than a loud one.
- Sit or lie down and slow your breathing to about six breaths a minute.
- Set Auto-stop for 15 to 25 minutes.
- Keep it at a low volume in the background while you write or work through a problem.
741 Hz vs 852 Hz
741 Hz is about outward clarity: thinking and expressing yourself clearly. 852 Hz is about inward clarity: intuition and awareness. Use 741 Hz for work and 852 Hz for reflection.