Article 76. Admission tax shall be imposed at the imposition rate of 100% ; provided that, in cases where fees are collected from persons entering exhibition grounds or halls, public pleasure-grounds and other similar places, from persons entering, for the purpose of appreciation, halls where only pure musics such as symphony, instrumental music, vocal music, etc. are performed for study, or from persons entering competition grounds to watch the athletic sports participated in by students, schoolboys and persons who do not make competitions their business, the imposition rate shall be 40%.