Salieri has spent many years working to ruin Mozart’s reputation.
Start: Salieri: Now for the first time I saw the place to which I had consigned him. A filthy chamber in total disorder. Empty bottles everywhere--discarded linen--and across the floor an inky pavement of fresh manuscripts, stirring in icy gusts from ill-fitting windows.
[... .. ...]
End: Salieri: And so finally I left. Refused. Unheard! Of course! (To God) Grazie--per sempre!! And never--never after--could I confess to anyone. Until I summoned You--tonight. My last.
Shaffer, Peter. Amadeus, Samuel French, 1980, pp. 83-88.