 In this and the following section, we shall present two Event Theories of sounds, for which we use two distinct labels. An earlier one, The Located Event Theory, was defended by Casati and Dokic (1994). It has been rejoined by Pasnau (2009) and extended to the field of sonic art by Roden (2010). A second, more recent version, the Relational Event Theory, has received an articulated defense by O’Callaghan (2007, 2010a). The two accounts agree on categorizing sounds as events, that is, located temporal particulars, and diverge on some specifics of the class of particulars that are admitted to be sounds. The Relational Event Theory makes sounds depend upon the existence of a medium that carries information about them. In this sense, only a subclass of situations involving sounds for the Located Event Theory are situations involving sounds for the Relational Event Theory.