Plays Powerliminal audios, which are nearly-silent audios containing very high-frequency energies to play in the background. You can stack 10 to 30 audios at varying speeds to play in the background day and night, selecting the balance of energies that you need.
https://www.spiritualselftransformation.com/powerliminals-nonrivalry

Here's a free Powerliminal on YouTube. https://www.youtube.com/watch?v=jdcWwWM6hQg

I can play 25 audios with ~3% CPU usage.

Supports Windows (Win 7 SP1 or later) and Linux (all distros).

Installation instructions
https://github.com/mysteryx93/HanumanInstituteApps/wiki/Powerliminals-Player

From Etienne Charland aka Hanuman, by a lightworker in his free time.
https://www.spiritualselftransformation.com