 Indeed, the various philosophical pronouncements about the nature of sounds can be rather neatly classified according to the spatial status each of them assigns to sounds. Where are sounds? Are they anywhere? The main relevant families of answers include proximal, medial, distal, and aspatial theories. Proximal theories would claim that sounds are where the hearer is. Medial theories—exemplified by mainstream acoustics—locate sounds in the medium between the resonating object and the hearer. Distal theories consider sounds to be located at the resonating object. Finally, aspatial theories deny spatial relevance to sounds. There are significant variants of each of these. Sound theories can also be classified according to other dimensions, such as the metaphysical status they accord to sounds (for instance, as occurring events as opposed to properties or dispositions). We shall see some of the interactions between these different accounts. For a discussion that is more focused on perception, see the entry on   auditory perception.