Skomorokh, if what you say is the case then there must be a split -> between this (and many other) obscure theories Nietzsche had and a an existing philosophical root ... binding "Perspectivism" to Nietzsche in a way this article does is misleading many that can not know otherwise!
Let me ajust that it was exactly art and music that led to a new way of looking at, behind, over, under and from any direction at one object ... not saying it's all green just because the front of that object is green, but from behind it's white, from under it's blue and at a certain angle it has a small red point ... I like the discussion very much but I'm close to twenty years out of this subject ... please give me the time to research my own resources and to provide reliable information ... thanks already for your time and attention, Ralf