I disagree on this, and I made that choice on purpose. I believe that playing always the same tracks in background can get tiring in the long run. Having some moments with SFX or ambient sound can be good to break the monotony.
Also, unless ALL the game tracks are designed to be played in background, some can result annoying even if the track themselves are good - one thing is a track played in background in an action game, but while reading, I think it's better if you aren't distracted too much by the music.
What do you think?
