  The differences among the fine arts (again, apart from music) have to do with the medium in which Ideas are copied and through which they may be perceived by other subjects and thus transmitted. But the fine arts also differ and admit of a hierarchy based on the hierarchical “ladder” of the Ideas that those art forms (and within art forms, genres) are suited to express.  Climbing the ladder of the will’s objectification in Ideas from lowest to highest is a matter of the increasing complexity and completeness in the will’s phenomenal expression. And so, the same holds for the fine arts—again, with the exception of music—whose sole aim, for Schopenhauer, is to copy the Ideas and thus for the genius to make them intuitively perceptible to others.