Hey Jody! First of all, thanks for everything you are doing for everyone!
And secondly... i don't know if you already answered this, not as far as i scrolled through the comments ( not too much honestly) but, do you know if this works for subjects like maths or physics, or is this better only for reading ?
Again, thank you!
Hello "Burning" :)
The frequencies aren't specific to any kinds of activity -- just a general state of focused concentration.
Burning Dawn