Sentence:  By the unprecedented intensity of the finale's rhetoric, by the <WSD>multitheism</WSD> of its symbolism — the Greek mythic signposts, the Christian-medieval gestures embedded in the Andante maestoso, and the orientalism of the Alla marcia's "Turkish Music". 
Meaning of the word marked with <WSD> tags:  The existence of multiple forms of theism, as in a society.