Full Idea
Because the ideal theory makes a work of art inner or mental, the link between the artist and the audience has been severed .....and it also totally ignores the significance of the medium.
Gist of Idea
The ideal theory of art neglects both the audience and the medium employed
Source
Richard Wollheim (Art and Its Objects [1968], 23)
A Reaction
Emily Dickinson had virtually no audience for her poetry. The medium used to perform Bach's 'Art of Fugue' seems unimportant. For paintings of painterly painters paint matters. For some visual art many different media will suffice.
Book Reference
Wollheim,Richard: 'Art and Its Objects' [Penguin 1975], p.56