I am certainly not arguing for the de facto autonomy of the individual work, even though there is much to be said for making the attempt to see it in that light as one facet of the reception process.
Piano playing is a dying art. I love the fact that I can be one guy with one instrument evoking an emotional and musical experience.
As anyone knows who has ever had to set up a military encampment or build a village from the ground up, occupations pose staggering logistical problems.