There are some interesting frequency sets in the database.
One of them is the frequencies associated with the planets, and what they are good for targeting.
They all belong in the ALT (Alternative) database.
I'm not sure the exact source or what line of thinking they come from.
However, at face value, that set is frequency 9.19 Hz which is very low and is an entrainment frequency -- much like 4 Hz is associated with deep sleep.
For more details, please check: