It appears to me that the subject of music, from Machaut to Boulez, has always been its construction. Melodies of 12-tone rows just don't happen. They must be constructed....To demonstrate any formal idea in music, whether structure or stricture, is a matter of construction, in which the methodology is the controlling metaphor of the composition...Only by 'unfixing' the elements traditionally used to construct a piece of music could the sounds exist in themselves--not as symbols, or memories which were memories of other music to begin with.
Morton FeldmanMost music is metaphor, but Wolff is not. I am not metaphor either. Parable, maybe. Cage is sermon.
Morton FeldmanAt one point [Cardew] taught himself to play guitar simply in order to take part in the performance in a composition by Boulez, which is a little like saying he learned Danish to read Kiekegaard.
Morton Feldman