Full Idea
With the usual reservations, there is nothing that can be predicated of a performance of a piece of music that could not also be predicated of that piece of music itself.
Gist of Idea
A musical performance has virtually the same features as the piece of music
Source
Richard Wollheim (Art and Its Objects [1968], 37)
Book Reference
Wollheim,Richard: 'Art and Its Objects' [Penguin 1975], p.97
A Reaction
He offers this as evidence that it fits the performance being a token, and music (and all other art) being a type. There are quite a few 'reservations'. Music too difficult to perform. Great music always badly performed.