I could go into great detail, and feel free to ping me directly if there are some specifics you are interested, in short for focus, roughly foundation is brown

I could go into great detail, and feel free to ping me directly if there are some specifics you are interested, in short for focus, roughly foundation is brown noise, with subtle pings after first 5 mins, in the middle and 3 chimes 5 mins before end. I used... I believe 16-22Hz oscilating entrainment frequency. I have those in 25 and 45 mins, and I used them for Pomidori sessions, hence the chimes.