The difference between playing games with no sound and no music whatsoever and those with appropriate, well-fitting music is like night and day. There was the scene at night with Nika and Bella sitting on a car together, eating and drinking, when I felt was a true turning point for their relationship development. And during that scene, there was a short animated clip where the game played part of a song during the animation called Watching From the Stars by Beza, which you can find on youtube. But the song was just perfect for that scene and it really melted my heart and left a deep impression on me.
In any game or movie, series, any narrative stories, books, whatever, you name it... Of course the overall journey matters but it's key moments like these that truly make them memorable. The points in any narrative that truly resonate with you, for one reason or another, are the ones that you will always remember and leave the biggest impression. And in many cases, I do believe music and sound helps enhance that experience. There are early documentaries on how Disney first employed music and sound effects to help affect or direct how the audience should feel during certain scenes, back in a time when motion pictures had been soundless and without music long, long ago that I remember watching at one point during a film studies class. I wouldn't call it "science" necessarily, but it's a very useful tool for any director and has been for many, many decades in media.
For me, in Summer's Gone, that was one of the most impactful and memorable moments, and when I think about this game, that will always be the very first thing that comes to mind. The music that was chosen during that scene really helped enhance the moment, and I still listen to that song from time to time. And when I do, that scene comes to mind.