The claim that the having of aesthetic properties supervenes on the having of non-aesthetic properties has been widely discussed and, in various ways, defended. In this paper, I will show that even if it is sometimes true that a supervenience relation holds between aesthetic properties and the 'subvenient' non-aesthetic ones, it is not the interesting relation in the neighbourhood. As we shall see, a richer, asymmetric and irreflexive relation is required, and I shall defend the claim that the more-and-more-popular relation (...) of grounding does a much better job than supervenience. (shrink)