Classical Music: The Era of Haydn, Mozart, and Beethoven: Norton Introduction to Music History, authored by Philip G. Downs (1992), offers a valuable analysis of Mozart and his peers.

Shaffer's play Equus, first staged in 1973, delves into the lives of two men with vastly different personalities who share a profound spiritual connection.

In Mozart in Revolt: Strategies of Resistance, Mischief and Deception (1999), David P. Schroeder scrutinizes the correspondence between Mozart and his father, uncovering significant insights into their personalities and relationship.

1791: Mozart's Last Year, written by H. C. Robbins Landon and M. C. Landon (1999), investigates the contentious final year of Mozart's life, including the speculation about Salieri's role in his death.

Jean-Paul Sartre's play Nausea (1938) explores existential themes similar to those in Amadeus. In Sartre's work, the protagonists grapple with a universe devoid of God and seek solace in art to mitigate their feelings of purposelessness.