In this paper, we describe a discussion on the facilitation of work in the school library using BGM (Back Ground Music) such as classical music, pops and jazz, etc.. We conducted experiments assuming two kinds of work. That is reading work and calculating work. In the survey by questionnaire after these works, we obtain an evaluation that it is easier to work when there is BGM than when there is not BGM. However, even in the presence of BGM, we could not confirm the tendency of the amount of reading and calculating work to improve. This is presumed that because the presentation time of BGM was short, subjects concentrated on the presented BGM, which affected work. In the future, we will reconsider the presentation time of BGM, and we will further investigate.