This was quite a considered and respected response. I appreciated it. But, if I may, this will help you understand my perspective as what would have been better content.
Summary:
Shirley: A genuine prodigy and polymath. Born 1927 in Florida to Jamaican immigrants. Piano from age 2–3, organ in church. Debuted with Boston Pops at 18 (Tchaikovsky). Studied in the USSR, earned multiple doctorates (music, psychology, liturgical arts), spoke several languages. Blended classical, jazz, and spirituals in his trio—recorded many albums, had hits like "Water Boy." Composed symphonies, concerti, quartets, opera, etc. Performed at Carnegie Hall (one of few to do solo concerts there besides Bernstein), La Scala, with Alvin Ailey, etc. Lived in Carnegie Hall studios. Faced segregation despite elite talent, which made his story poignant. Reserved, aristocratic, meticulous, yet versatile.
Tony "Lip" Vallelonga: Colorful working-class character—bouncer at the Copacabana, street-smart talker ("Lip" for his gift of gab), former minor-league baseball, Army vet. Later actor (Sopranos, Goodfellas, etc.). Big personality, food-loving, loyal, protective. His appeal is the everyman contrast: tough Italian guy navigating elite and Southern worlds. His growth and anecdotes make him likable and movie-friendly, but he's not a Renaissance figure.
I do know that Dr Shirley's family were not consulted for this film as they had a different take. What rankled with them was also was the insinuation that Dr Shirley wasn't close to his family because of his 'persuasion'.
For me, it's an irksome film, knowing there are many, many elements bypassed to produce it.
However, I'm glad you got something out of it.