Most of the time I have to listen to this kind of super chill music to concentrate at work. They have several of these 1940ish ones w/ "art" from way back then.
If it works, more power to you.
I used to listen to relaxing music, mostly the sound of rain, all the time to help me sleep.
Now I listen to my favorite songs to start the day. IMO, there is real healing power in the right music.