The aesthetic enjoyment we have in music and in the phantasy-feelings to which it gives rise reflects further, however, a special functional relationship between the sound- Gestalten and the feelings we experience: the nature or quality of a given phantasy-feeling depends at least in part on the character of the music which provokes it. As Mach and James, Ehrenfels and Witasek all in different ways recognised, there is a certain similarity between sound-Gestalten on the one hand and the psychical states to which they give rise, a fact which opens up the much wider.