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In page Amadeus (play):

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Shaffer used artistic licence in his portrayals of Mozart and Salieri. Documentary evidence suggests that there may have been some occasional antipathy between the two men but the idea that Salieri was the instigator of Mozart's demise is not taken seriously by scholars of the men's lives and careers. In fact, there is evidence that they enjoyed a relationship marked by mutual respect.[1] As an example, Salieri later tutored Mozart's son Franz in music.[citation needed] He also conducted some of Mozart's works, in Mozart's lifetime and afterwards.[2]