That's really cool. I read about notched sound therapy years ago, but it required expensive tests in an audio lab and proprietary white noise device. AudioNotch is a mobile app that lets you tune your notch parameters on your phone and then apply your filter to your own music.
I usually listen to broadband white or brown noise while a work. My favorite is this simulation of spaceship engine hum https://youtu.be/TvUHt54Ucrg but I'm going to check out AudioNotch since it can be tuned to my particular tinnitus frequency.
