Sentence:  A biting , pithy parable of the all pervading hollowness of modern life , the piece has been set by Mlle Lagoon to a sumptuous <WSD>score</WSD> ( a single motif played over and over by four thousand French horns ) by existentialist hot-shot Jean-Paul Sartre . 
Meaning of the word marked with <WSD> tags:  a written form of a musical composition; parts for different instruments appear on separate staves on large pages