Unspoken, Understood

In the absence of a direct narrative, atmosphere and tone communicate a sense of meaning.

A work need not be content-specific to offer such things as refinement of perspective and nuance of mood.  In fact, these may be made more apparent without the association of direct exposition. 

In poetry and literature, a character description or sketch of a time and place alone may entertain and inspire insights, while music, painting and sculpture need not reference a specific account of an  imaginative tale or historical event to evoke feelings and ideas in those who encounter the works.

Consider the sounds of seasonal change, of the rise and descent of cultural phenomena, or posit those suggested by light in landscapes or the movement of time through generations.  Intuit and put forward tones and musical textures that bring these into being, and though they are nebulous, they reveal worlds within worlds.