Honestly, music for me is my respite and I agree with what you say about it being healing. I have serious (diagnosed) anxiety and depression and most of the time between medication, meditation, therapy, and coping strategies, I keep them in line okay. But once in a while they become overwhelming, or I just need a break from the constant effort that it takes for me to just exist, moment to moment.
At those times, I go and lie in bed, put on my headphones, queue up a good playlist, close my eyes, and just disappear into music. For a little while, everything just melts away. Nothing else in life is quite the same. And when I'm done, or when I wake up the next morning (because I often do this just before going to bed), I feel recharged and ready to wake back into life.
It saves me.