Full disclosure:

I'm a writing coach and line editor for hire, so it's an effort to drum up business, but even if you never use me in that capacity, I also am bored enough that I'd take a stab at it anyway.. I really feel like your work benefits from revisions:

Look at your first five sentences:

"Music is a crucial part of films, but the magic often comes with a high price."

Standard opener, but the first half of this sentence is obvious. We all know music is part of films, so when you put something everything already knows, it veers into cliche.

"Unfortunately, the film-music industry has its fair share of stories that scream WTF?"

Film-music is an inexact term and it should not be hyphenated unless you see it as a modifer. Is it widely used? I've heard film scoring. If you don't use the right term, you lose crediblity right off the bat

"Ghostwriters, interns, music assistants, every position comes with its set of bad experiences."

The placement of "every position" is grammatically incorrect. It's also redundant to the last sentence where you stated "you have a fair share of stories that scream WTF" Redundancy leads to overly long prose that loses the readers interest.

"Let me share some stories from the industry and keep them anonymous to avoid any unnecessary trouble."

I would only insert first person if it's really effective. Here you don't need to announce that you are sharing because this is your work. Of course we are expecting you to share stories.

"This normalcy must change."

A somewhat awkward transition because it's unrelated to the sentence before it. I also think you mean a word other than "normalcy" since that refers more to conformity and less to a bad state of events.

If you want, contact me at okonh0wp@gmail.com