Some aestheticians, e.g., Peter Kivy,' are Platonists about pieces of music. They hold that a piece of music is the sound structure indicated by the notation, and that performances are (or, present) tokens of the sound structure, i.e., tokens of a type. Other philosophers, e.g., Jerrold Levinson, deny this; in Kivy's terminology they are anti-Platonists. Levinson holds that the essential charac...