Full Idea
Interpretation may be regarded as the production of a token that has properties in excess of those of the type.
Gist of Idea
An interpretation adds further properties to the generic piece of music
Source
Richard Wollheim (Art and Its Objects [1968], 37)
Book Reference
Wollheim,Richard: 'Art and Its Objects' [Penguin 1975], p.98
A Reaction
I suppose so. If you play accurately everything that is written in the score, then anything else has to be an addition. If you play less than the score, you aren't quite playing that piece of music.