People have different descriptions of what background music is. Mine is that if it was playing in the background, i wouldn't turn it off....but equally, it could stop and I might not notice straight away!
1 or 2 albums on here, have been in this category for me, and this is another, so a 4 for me.
Yes, that is not far off how I'd think of it. And while often meant as an almost compliment, it is at the same time an implied criticism. Which your score is consistent with.