Metaphysics (in the Aristotelian sense; not the witchcraft and new age sense) is what philosophers called that which is beyond experience. It is therefore theoretical, employing inference and deduction through rationalization as a means to explain our experience. By Metaesthetics, I mean something similar. We all possess an aesthetic sense which we experience in a very immediate way. In the field of philosophical aesthetics, philosphers pride themselves on the consideration of aesthetic qualities long after the initial perception. This sometimes grants them with a new aesthetic perspective (and the discourse continues). I am suggesting the opposite. Can there be an aesthetic judgement prior to any perception of it? In this way, there is a kind of knowledge prior to experience which is what I mean by "Meta" aesthetics. Emmanuel Kant called this a priori knowledge. Further, I am suggesting that just as there was postulated a form of "a priori" knowledge, there is also a form of a priori judgement. And what's more, this judgement is what informs our knowledge. So knowledge is not the foundation upon which experience is built (revealed to us through perception) but rather judgement is the "prime mover" in the sequence of events that make up consciousness.
The consequences of this is interesting. Moral philosophy takes on a new life; Epistemology must be seen in a new light and Ontology would revere artists and the creative spirit as Gods.