There's more to music's healing power than particular frequencies. Unlike most animals, humans have spindle cell neurons that connect our sound intake to our emotional centers, and in so doing can put us in touch with our feelings -- can bring feelings up, including sometimes feelings we've been keeping at bay.

This comment won't be for everyone, but for some it may be helpful.

Emotional healing (as opposed to strengthening one's emotional defenses -- as with alcohol, tobacco, casual sex with strangers, shopping for things one doesn't need, or anything else that can distract from unpleasant feeling) requires deep connection to real feeling. It requires breaking through defenses.

It's not enough to cry, for example, when you have a problem with grief. You can do THAT forever without getting anywhere. You need to KNOW what you're crying about and the CONNECTION with what really happened is what turns a repressed feeling (which is constantly trying to come to full consciousness, as any traumatic feeling must) into just an old memory instead of a constant misery that must be covered with SOMETHING so you can get through the day -- and which affects your behavior as well as your inner on-going experience.

Music can help get you there. So can a movie that brings up feeling for you.

If you have someone you trust who will sit with you, without judgement and without talking, that can also help.

There is far too much grief and trauma in the world already, and the load is getting heavier. "Keeping it all inside" is the path most people take; it's what comes naturally and automatically for most of us.

For some of us, that path isn't tenable. It can be a great relief to get some of that sequestered feeling out of one's system. It can be life-changing, and indeed for some it is life-saving.

Not for everyone, no. And it's not a path without dangers (because everything, without exception, HAS dangers). But for some, there is no other path worth traveling. In case you are, or think you might be, such a person, you deserve to know that "feeling your old feelings" is a real thing, that it is a natural process, that it works, and that -- for some -- it can make a huge difference in one's life.

Best wishes.