I like to play a lot of games which don’t have a very big budget or a good music selection (example. Borderland and The Mimic) and I say “Hmm.. this game has very good music”.
I click on the hamburguer menu, click “Music” and like the Music that comes on.
I would use that music in my games, but I have to manaully search for it’s name. I can’t see the menu of the liked music.
As far as I can tell, they are not stored anywhere. Not on servers, nor the device. try to like any music in any experience, then reopen that menu. you’d see that you have to like the music again! but why again?
most likely, this is a non-functional thing, or I might be wrong, somehow. either it was made to fill out the menu, or it will soon be presented as a really valid feature. Time will tell.