Traditionally tied to the idea of restoring what feels worn out. In practice it's a soft, round tone that works well under rain or ocean sounds, so people use it on lazy days and after workouts.
traditionally linked with
how listeners use it
Frequency music is for relaxing, focusing and enjoying sound. The meanings above come from tradition and from how listeners describe it. They are not medical claims, and the music does not replace care from a doctor or therapist.