Finished this today, it's so great.
There was one annoying bug. I saved at the piano, and since then, any time I try to load any save, it takes me back to the piano, unless it's a save that was made before that one. Somehow it happens even after deleting that piano save. And the worst part is that it also took me there when the game ended.
But other than that, Echoes of Another was really very good and I will remember it.