"self-centered young talented musician" = protagonist
"scores a chance into music industry’s big time acts" = inciting incident
Great logline! Clear statement of protagonist's character flaw - self-centered. Then BANG! their dreams come true with an inciting incident. How will a selfish person behave, when suddenly they get what they want? Lots of potential for conflict there.
Question: Who then is the antagonist? There's a suggestion of wrestling with rewards and pitfalls, but the statement feels abstract. Difficult to imagine in any concrete sense. But if a bad guy was thrown in?
And this villain character, what if they were, well you know, really nice? Likeable in fact, call them selfless, generous, and caring. Quite a contrast here, and one that may even imply the character arc, more than simply stating "a better man to those around him".
Through profoundly different stories, it kind'a reminds me of Gone with the Wind (1939). Scarlett O'Hara an't that nice a girl, every one around her is so much nicer. Yet we connect with this character because of her flaws, and how she struggles to amend them. Just wondering who is your Rhett Butler.in your story?