Charles Rosen in an essay titled "The Frontiers of Nonsense," published in The Frontiers of Meaning:
If getting used to music is the essential condition for understanding, it is hard to see just what purpose is served by writing about it. A few experiences of listening to a symphony or nocturne are worth more than any essay or analysis. The work of art itself teaching us how to understand it, and makes the critic not merely parasitical but strictly superfluous. This is not an unprecedented dilemma but one in which the critic of literature found himself at the end of the eighteenth century, when the function of criticism as an act of judgment crumbled before his eyes. The accepted criteria that had served so well for centuries began to seem the heritage of an alien culture; it no longer required any courage, or provoked any surprise, to question the authority of the classics, and it became almost commonplace to assume that the models given by Homer, Virgil, and Horace were no longer relevant to the literature of contemporary Europe. With the realization that absolute standards were not valid for new civilizations and different cultures, critics were compelled to derive their measures of evaluation from each culture in turn, and then from each individual author, and finally from each work. Standards could no longer be imposed from outside or in advance, and critics finally recognized that a new work was capable of establishing its own system of values. Here is the basis for Wordsworth's famous affirmation that an original poet "must himself create the taste by which he is to be relished." The more traditional, straightforward exercise of judgment was left to journalists. Critical evaluation was transformed into understanding, and criticism became not an act of judgment but of comprehension.
This is the legacy of Romanticism, and critics who would like to maintain or return to absolute standards have been protesting it without much success for almost two centuries. Whether there is, in fact, anything constant or invariant about aesthetic appreciation is irrelevant -- even if there is, it must be on a level of such generality that it can never help us in any given instance. Our sensuous appreciation of the world and of the works created by man has, no doubt, a biological foundation, one shared by all human beings, but that is no use to us when we try to evaluate a Bach fugue or a Dostoevsky novel -- or even the simple experience of a landscape, as our delight in the view of a mountain or a waterfall is also determined by the traditions of our culture. The coexistence of different criteria of judgment is, in any case, by now a fact of life. Beethoven cannot be judged or even understood by the standards of Mozart, however much he may have continued them, nor Berg by the standards of Wagner or Richard Strauss, nor Elliott Carter by the values of Ives and Stravinsky. A work of music can be only partially integrated into history, although that partial integration may be inescapable: it also demands to be listened to as if nothing had come before it and nothing was to come afterward.
The paradox was stated explicitly in that manifesto of Central European Romanticism first published in 1799, the Athenaeum, at the beginning of the section of book reviews:
"Excellent works generally criticize [characterize, or review] themselves, and in this respect it is superfluous for another to perform yet again the very task that the author has doubtless already done. If such a criticism, nevertheless, is a work of art (as it always ought to be), then its existence is anything but superfluous; but it stands entirely for itself and is as independent of the written work criticized as this itself is independent of the material treated and described within it."
This proclaims the independence of the critic, which may here be equated with the freedom of the artist; and it must be recognized that a small degree of irresponsibility is necessary for a critic with any self-respect. Without that irresponsibility the work of criticism is indeed superfluous. If the principles of judgment are to be drawn from the work of art itself, it is clear that its creator has already done that, even if only implicitly.