As you search for something to watch on Netflix, it plays a collage of clips on whatever you are reading the description for. During this, it will play music and oftentimes GOOD music. And the music has nothing whatsoever to do with the movie or show you are looking at. Are these new compositions? I particularly love the one for The West Wing.
That's funny , I also noticed this today via Roku, Netflix stream. I noticed some original music, but clicking on The Ghost Writer (Desplat) & Stranger Things (Dixon, Stein), those respective scores played.